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Ji Sung Nam Stats, Ranking & Age

Ji Sung Nam - South Korea

Ji Sung Nam
60 Average Form
L
L
W
W
W
L
W

ATP Rank

678

Elo Score

43

Singles - Career

Age

W-L

Career Winnings

Height

Weight

Hand

31

142 - 146

$319,322

1.83m

80kg

Right-handed

Ji Sung Nam is recently performing at a average level. Ji Sung Nam's record in 2025 is 6 wins to 4 losses. Their career record is 142 wins to 146 losses.

Stats
Matches & Results
Surface : All
 
2025 Stats
All Surfaces
Hard
Clay
Grass

General Overview Stats (All Surfaces)

Performance
Profile
Data Point
Total
Details
Percentile
Prize Money
Career Total
$319,322USD Earned
$1,109Earned Per Match
71
Current Ranking
ATP - Men
678Since Jul 2024
43Elo Points
68
Win Percentage
2025 Year
60.0%6 / 10 Matches
AverageAverage Form
82
Win Percentage
Trailing 12 Months
51.3%20 / 39 Matches
AverageAverage Form
63
Win Percentage
Career Total
49.3%142 / 288 Matches
AverageAverage Form
66
On the Court This Year
Aces
2025
N/AAces Per Match
-0 / 0 matches
N/A
First Serve
2025
N/AFirst Serve
-Success Rate
N/A
Double Faults
2025
N/APer Match
-0 / 0 matches
N/A
Break Points Won
2025
N/ABP Converted
-N/A Breaks
N/A

Ji Sung Nam is ranked 678 in the ATP rankings with an ELO score of 43. In 2025, Ji Sung Nam is in Average form, achieving 60.0% wins.

Data Point
Stat
Age
31
Forehand
Right-handed
Backhand
Two-handed
Birthday
August 15, 1993
Height
1.83m
Weight
80kg

Win Percentage (Match / Set)

2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Match Wins
60%
51%
85
Match Wins (3 Sets)
60%
51%
84
Match Wins (5 Sets)
N/A
N/A
N/A
Wins in Straight Sets
50%
33%
92
Wins From Behind
20%
17%
78
Won At Least 1 Set
80%
64%
91
Set 1 Win
60%
46%
84
Set 2 Win
70%
53%
96
Set 3 Win
33%
58%
26
Set 4 Win
N/A
N/A
0
Set 5 Win
N/A
N/A
0
Data Point
Percentage
Number
Percentile
Match Wins
49%
142 / 288
67
Match Wins (3 Sets)
49%
142 / 287
65
Match Wins (5 Sets)
0%
0 / 1
0
Wins in Straight Sets
35%
100 / 288
73
Wins From Behind
16%
27 times
73
Won At Least 1 Set
65%
187 / 288
61
Set 1 Win
48%
139 / 288
59
Set 2 Win
52%
147 / 285
74
Set 3 Win
48%
42 / 87
55
Set 4 Win
N/A
0 / 0
0
Set 5 Win
N/A
0 / 0
0

Aces Stats (3 Set Matches Only)

2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Aces Per Match
N/A
2.87
0
Most Aces in a match
N/A
39%
0
Over 0.5 Aces
N/A
78%
0
Over 1.5 Aces
N/A
52%
0
Over 2.5 Aces
N/A
48%
0
Over 3.5 Aces
N/A
43%
0
Over 4.5 Aces
N/A
30%
0
Over 5.5 Aces
N/A
17%
0
Over 6.5 Aces
N/A
13%
0
Over 7.5 Aces
N/A
4%
0
Over 8.5 Aces
N/A
0%
0
Over 9.5 Aces
N/A
0%
0
Over 14.5 Aces
N/A
0%
0

Overall, Ji Sung Nam is better than 0% of the players in terms of Aces Per Match during their latest matches.

Data Point
Percentage
Number
Percentile
Aces Per Match
3.66
289 / 79
61
Over 0.5 Aces
87%
69 / 79
49
Over 1.5 Aces
71%
56 / 79
50
Over 2.5 Aces
57%
45 / 79
51
Over 3.5 Aces
46%
36 / 79
52
Over 4.5 Aces
34%
27 / 79
52
Over 5.5 Aces
24%
19 / 79
46
Over 6.5 Aces
22%
17 / 79
54
Over 7.5 Aces
14%
11 / 79
46
Over 8.5 Aces
5%
4 / 79
21
Over 9.5 Aces
3%
2 / 79
18
Over 14.5 Aces
0%
0 / 79
0

Match Total Games Stats

2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Average Total Games (3 Set Matches)
20.4
21.31
41
Average Total Games (5 Set Matches)
N/A
N/A
0
Over 12.5
100%
97%
41
Over 13.5
90%
95%
16
Over 14.5
80%
92%
12
Over 15.5
60%
85%
6
Over 16.5
60%
74%
14
Over 17.5
60%
72%
28
Over 18.5
60%
67%
51
Over 19.5
60%
54%
74
Over 20.5
50%
49%
62
Over 21.5
50%
46%
75
Over 22.5
40%
41%
67
Over 23.5
30%
36%
44
Over 24.5
20%
26%
17
Over 25.5
20%
23%
24
Over 26.5
20%
21%
37
Over 27.5
20%
21%
49
Over 28.5
20%
15%
64
Over 29.5
0%
10%
0
Over 30.5
0%
10%
0
Data Point
Percentage
Percentile
Average Total Games (3 Set Matches)
21.45
49
Over 12.5
98%
44
Over 13.5
97%
54
Over 14.5
94%
53
Over 15.5
87%
43
Over 16.5
80%
45
Over 17.5
71%
47
Over 18.5
61%
43
Over 19.5
53%
44
Over 20.5
47%
49
Over 21.5
43%
54
Over 22.5
37%
54
Over 23.5
32%
50
Over 24.5
30%
49
Over 25.5
26%
45
Over 26.5
22%
43
Over 27.5
18%
37
Over 28.5
15%
37
Over 29.5
11%
30
Over 30.5
8%
27

Break of Serve (Break Points Won) - Over/Under

2025 & Last 12
Career
3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
2025
Last 12
Percentile
Breaks Per Match
N/A
3.57
0
Over 0.5
N/A
96%
0
Over 1.5
N/A
78%
0
Over 2.5
N/A
61%
0
Over 3.5
N/A
43%
0
Over 4.5
N/A
22%
0
Over 5.5
N/A
17%
0
Over 6.5
N/A
9%
0

Data Point
2025
Last 12
Percentile
Breaks Per Match
N/A
N/A
0
Over 0.5
N/A
N/A
0
Over 1.5
N/A
N/A
0
Over 2.5
N/A
N/A
0
Over 3.5
N/A
N/A
0
Over 4.5
N/A
N/A
0
Over 5.5
N/A
N/A
0
Over 6.5
N/A
N/A
0
Over 7.5
N/A
N/A
0
Over 8.5
N/A
N/A
0
Data Point
2025
Last 12
Percentile
Average Break-Points Converted (Set 1)
N/A
1.54
0
Average Break-Points Converted (Set 2)
N/A
1.52
0
Average Break-Points Converted (Set 3)
N/A
1.44
0
will Break Serve %
N/A
47%
0
will not Break Serve %
N/A
45%
0
Over 0.5
N/A
87%
0
Over 1.5
N/A
30%
0
Over 2.5
N/A
4%
0

Breaks Per Set data uses Set 1 as a sample.

3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
2025
Number
Percentile
Breaks Per Match
3.01
N/A
78
Over 0.5
86%
68 / 79
62
Over 1.5
73%
58 / 79
72
Over 2.5
58%
46 / 79
77
Over 3.5
42%
33 / 79
78
Over 4.5
19%
15 / 79
59
Over 5.5
11%
9 / 79
69
Over 6.5
4%
3 / 79
67
Data Point
2025
Number
Percentile
Breaks Per Match
6
N/A
99
Over 0.5
100%
1 / 1
73
Over 1.5
100%
1 / 1
87
Over 2.5
100%
1 / 1
93
Over 3.5
100%
1 / 1
97
Over 4.5
100%
1 / 1
98
Over 5.5
100%
1 / 1
99
Over 6.5
0%
0 / 1
0
Over 7.5
0%
0 / 1
0
Over 8.5
0%
0 / 1
0
Data Point
2025
Number
Percentile
Average Break-Points Converted (Set 1)
1.32
N/A
73
Average Break-Points Converted (Set 2)
1.28
N/A
62
Average Break-Points Converted (Set 3)
1.34
N/A
69
will Break Serve %
41%
N/A
69
will not Break Serve %
42%
N/A
55
Over 0.5
73%
58 / 79
76
Over 1.5
37%
29 / 79
64
Over 2.5
8%
6 / 79
35

Breaks Per Set data uses Set 1 as a sample.

Double Faults - Over/Under

2025 & Last 12 Months
Career
3 Set Matches
5 Set Matches
Data Point
2025
Last 12
Percentile
Double Faults Per Match
N/A
4.17
100
Over 0.5 (1+)
N/A
96%
100
Over 1.5 (2+)
N/A
83%
100
Over 2.5 (3+)
N/A
65%
100
Over 3.5 (4+)
N/A
61%
100
Over 4.5 (5+)
N/A
48%
100
Over 5.5 (6+)
N/A
39%
100
Over 6.5 (7+)
N/A
13%
100
Over 7.5 (8+)
N/A
9%
100

Data Point
2025
Last 12
Percentile
Double Faults Per Match
N/A
N/A
100
Over 0.5 (1+)
N/A
N/A
100
Over 1.5 (2+)
N/A
N/A
100
Over 2.5 (3+)
N/A
N/A
100
Over 3.5 (4+)
N/A
N/A
100
Over 4.5 (5+)
N/A
N/A
100
Over 5.5 (6+)
N/A
N/A
100
Over 6.5 (7+)
N/A
N/A
100
Over 7.5 (8+)
N/A
N/A
100
Over 8.5 (9+)
N/A
N/A
100
Over 9.5 (10+)
N/A
N/A
100
Over 10.5 (11+)
N/A
N/A
100

3 Set Matches
5 Set Matches
Data Point
2025
Number
Percentile
Double Faults Per Match
3.59
284 / 79
26
Over 0.5 (1+)
96%
76 / 79
34
Over 1.5 (2+)
84%
66 / 79
29
Over 2.5 (3+)
59%
47 / 79
39
Over 3.5 (4+)
46%
36 / 79
35
Over 4.5 (5+)
32%
25 / 79
34
Over 5.5 (6+)
23%
18 / 79
31
Over 6.5 (7+)
9%
7 / 79
49
Over 7.5 (8+)
6%
5 / 79
46
Data Point
2025
Number
Percentile
Double Faults Per Match
5
5 / 1
9
Over 0.5 (1+)
100%
1 / 1
33
Over 1.5 (2+)
100%
1 / 1
19
Over 2.5 (3+)
100%
1 / 1
12
Over 3.5 (4+)
100%
1 / 1
8
Over 4.5 (5+)
100%
1 / 1
6
Over 5.5 (6+)
0%
0 / 1
100
Over 6.5 (7+)
0%
0 / 1
100
Over 7.5 (8+)
0%
0 / 1
100
Over 8.5 (9+)
0%
0 / 1
100
Over 9.5 (10+)
0%
0 / 1
100
Over 10.5 (11+)
0%
0 / 1
100

Win Percentage (Hard Courts)

2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Match Wins
60%
55%
85
Match Wins (3 Sets)
60%
55%
84
Match Wins (5 Sets)
N/A
N/A
N/A
Wins in Straight Sets
50%
36%
92
Wins From Behind
20%
17%
78
Won At Least 1 Set
80%
61%
91
Set 1 Win
60%
48%
84
Set 2 Win
70%
50%
96
Set 3 Win
33%
75%
26
Set 4 Win
N/A
N/A
0
Set 5 Win
N/A
N/A
0
Data Point
Percentage
Number
Percentile
Match Wins
51%
135 / 264
67
Match Wins (3 Sets)
51%
135 / 264
65
Match Wins (5 Sets)
0%
0 / 1
0
Wins in Straight Sets
36%
96 / 264
73
Wins From Behind
17%
26 times
73
Won At Least 1 Set
65%
171 / 264
61
Set 1 Win
48%
127 / 264
59
Set 2 Win
53%
139 / 261
74
Set 3 Win
52%
39 / 75
55
Set 4 Win
N/A
0 / 0
0
Set 5 Win
N/A
0 / 0
0

Aces (Hard Courts)

2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Aces Per Match
N/A
2.88
0
Most Aces in a match
N/A
41%
0
Over 0.5 Aces
N/A
71%
0
Over 1.5 Aces
N/A
53%
0
Over 2.5 Aces
N/A
47%
0
Over 3.5 Aces
N/A
41%
0
Over 4.5 Aces
N/A
29%
0
Over 5.5 Aces
N/A
24%
0
Over 6.5 Aces
N/A
18%
0
Over 7.5 Aces
N/A
6%
0
Over 8.5 Aces
N/A
0%
0
Over 9.5 Aces
N/A
0%
0
Over 14.5 Aces
N/A
0%
0
Data Point
Percentage
Number
Percentile
Aces Per Match
3.72
249 / 67
49
Over 0.5 Aces
85%
57 / 67
32
Over 1.5 Aces
72%
48 / 67
35
Over 2.5 Aces
58%
39 / 67
37
Over 3.5 Aces
45%
30 / 67
35
Over 4.5 Aces
34%
23 / 67
37
Over 5.5 Aces
25%
17 / 67
30
Over 6.5 Aces
24%
16 / 67
42
Over 7.5 Aces
15%
10 / 67
33
Over 8.5 Aces
6%
4 / 67
13
Over 9.5 Aces
3%
2 / 67
8
Over 14.5 Aces
0%
0 / 67
0

Match Total Games (Hard Courts)

2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Average Total Games (3 Set Matches)
20.4
20.55
41
Average Total Games (5 Set Matches)
N/A
N/A
0
Over 12.5
100%
97%
41
Over 13.5
90%
95%
16
Over 14.5
80%
92%
12
Over 15.5
60%
85%
6
Over 16.5
60%
74%
14
Over 17.5
60%
72%
28
Over 18.5
60%
67%
51
Over 19.5
60%
54%
74
Over 20.5
50%
49%
62
Over 21.5
50%
46%
75
Over 22.5
40%
41%
67
Over 23.5
30%
36%
44
Over 24.5
20%
26%
17
Over 25.5
20%
23%
24
Over 26.5
20%
21%
37
Over 27.5
20%
21%
49
Over 28.5
20%
15%
64
Over 29.5
0%
10%
0
Over 30.5
0%
10%
0
Data Point
Percentage
Percentile
Average Total Games (3 Set Matches)
21.14
38
Over 12.5
98%
44
Over 13.5
97%
54
Over 14.5
94%
53
Over 15.5
87%
43
Over 16.5
80%
45
Over 17.5
71%
47
Over 18.5
61%
43
Over 19.5
53%
44
Over 20.5
47%
49
Over 21.5
43%
54
Over 22.5
37%
54
Over 23.5
32%
50
Over 24.5
30%
49
Over 25.5
26%
45
Over 26.5
22%
43
Over 27.5
18%
37
Over 28.5
15%
37
Over 29.5
11%
30
Over 30.5
8%
27

Break Points Won (Hard Courts)

2025 & Last 12
Career
3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
2025
Last 12
Percentile
Breaks Per Match
N/A
3.32
0
Over 0.5
N/A
94%
0
Over 1.5
N/A
71%
0
Over 2.5
N/A
53%
0
Over 3.5
N/A
41%
0
Over 4.5
N/A
18%
0
Over 5.5
N/A
18%
0
Over 6.5
N/A
12%
0
Data Point
2025
Last 12
Percentile
Breaks Per Match
N/A
N/A
0
Over 0.5
N/A
N/A
0
Over 1.5
N/A
N/A
0
Over 2.5
N/A
N/A
0
Over 3.5
N/A
N/A
0
Over 4.5
N/A
N/A
0
Over 5.5
N/A
N/A
0
Over 6.5
N/A
N/A
0
Over 7.5
N/A
N/A
0
Over 8.5
N/A
N/A
0
Data Point
2025
Last 12
Percentile
Average Break-Points Converted (Set 1)
N/A
1.53
0
Average Break-Points Converted (Set 2)
N/A
1.44
0
Average Break-Points Converted (Set 3)
N/A
1.50
0
will Break Serve %
N/A
54%
0
will not Break Serve %
N/A
41%
0
Over 0.5
N/A
88%
0
Over 1.5
N/A
29%
0
Over 2.5
N/A
6%
0

Breaks Per Set data uses Set 1 as a sample.

3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
2025
Number
Percentile
Breaks Per Match
2.8
N/A
75
Over 0.5
84%
56 / 67
56
Over 1.5
69%
46 / 67
66
Over 2.5
54%
36 / 67
75
Over 3.5
39%
26 / 67
77
Over 4.5
15%
10 / 67
51
Over 5.5
10%
7 / 67
74
Over 6.5
4%
3 / 67
68
Data Point
2025
Number
Percentile
Breaks Per Match
6
N/A
99
Over 0.5
100%
1 / 1
67
Over 1.5
100%
1 / 1
85
Over 2.5
100%
1 / 1
93
Over 3.5
100%
1 / 1
97
Over 4.5
100%
1 / 1
99
Over 5.5
100%
1 / 1
99
Over 6.5
0%
0 / 1
0
Over 7.5
0%
0 / 1
0
Over 8.5
0%
0 / 1
0
Data Point
2025
Number
Percentile
Average Break-Points Converted (Set 1)
1.26
N/A
79
Average Break-Points Converted (Set 2)
1.21
N/A
66
Average Break-Points Converted (Set 3)
1.35
N/A
76
will Break Serve %
40%
N/A
70
will not Break Serve %
40%
N/A
54
Over 0.5
70%
47 / 67
73
Over 1.5
31%
21 / 67
54
Over 2.5
7%
5 / 67
39

Breaks Per Set data uses Set 1 as a sample.

Double Faults (Hard Courts)

2025 & Last 12 Months
Career
3 Set Matches
5 Set Matches
Data Point
2025
Last 12
Percentile
Double Faults Per Match
N/A
3.76
100
Over 0.5 (1+)
N/A
94%
100
Over 1.5 (2+)
N/A
76%
100
Over 2.5 (3+)
N/A
59%
100
Over 3.5 (4+)
N/A
59%
100
Over 4.5 (5+)
N/A
41%
100
Over 5.5 (6+)
N/A
35%
100
Over 6.5 (7+)
N/A
6%
100
Over 7.5 (8+)
N/A
6%
100
Data Point
2025
Last 12
Percentile
Double Faults Per Match
N/A
N/A
100
Over 0.5 (1+)
N/A
N/A
100
Over 1.5 (2+)
N/A
N/A
100
Over 2.5 (3+)
N/A
N/A
100
Over 3.5 (4+)
N/A
N/A
100
Over 4.5 (5+)
N/A
N/A
100
Over 5.5 (6+)
N/A
N/A
100
Over 6.5 (7+)
N/A
N/A
100
Over 7.5 (8+)
N/A
N/A
100
Over 8.5 (9+)
N/A
N/A
100
Over 9.5 (10+)
N/A
N/A
100
Over 10.5 (11+)
N/A
N/A
100
3 Set Matches
5 Set Matches
Data Point
2025
Number
Percentile
Double Faults Per Match
3.42
229 / 67
30
Over 0.5 (1+)
97%
65 / 67
36
Over 1.5 (2+)
84%
56 / 67
31
Over 2.5 (3+)
58%
39 / 67
40
Over 3.5 (4+)
43%
29 / 67
38
Over 4.5 (5+)
28%
19 / 67
40
Over 5.5 (6+)
19%
13 / 67
39
Over 6.5 (7+)
4%
3 / 67
77
Over 7.5 (8+)
3%
2 / 67
72
Data Point
2025
Number
Percentile
Double Faults Per Match
5
5 / 1
12
Over 0.5 (1+)
100%
1 / 1
38
Over 1.5 (2+)
100%
1 / 1
22
Over 2.5 (3+)
100%
1 / 1
14
Over 3.5 (4+)
100%
1 / 1
8
Over 4.5 (5+)
100%
1 / 1
5
Over 5.5 (6+)
0%
0 / 1
100
Over 6.5 (7+)
0%
0 / 1
100
Over 7.5 (8+)
0%
0 / 1
100
Over 8.5 (9+)
0%
0 / 1
100
Over 9.5 (10+)
0%
0 / 1
100
Over 10.5 (11+)
0%
0 / 1
100

Win Percentage (Clay Courts)

2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Match Wins
N/A
33%
0
Match Wins (3 Sets)
N/A
33%
0
Match Wins (5 Sets)
N/A
N/A
N/A
Wins in Straight Sets
N/A
17%
0
Wins From Behind
N/A
20%
0
Won At Least 1 Set
N/A
83%
0
Set 1 Win
N/A
33%
0
Set 2 Win
N/A
67%
0
Set 3 Win
N/A
25%
0
Set 4 Win
N/A
N/A
0
Set 5 Win
N/A
N/A
0
Data Point
Percentage
Number
Percentile
Match Wins
33%
7 / 21
67
Match Wins (3 Sets)
33%
7 / 21
65
Match Wins (5 Sets)
N/A
0 / 0
0
Wins in Straight Sets
19%
4 / 21
73
Wins From Behind
7%
1 times
73
Won At Least 1 Set
71%
15 / 21
61
Set 1 Win
52%
11 / 21
59
Set 2 Win
38%
8 / 21
74
Set 3 Win
27%
3 / 11
55
Set 4 Win
N/A
0 / 0
0
Set 5 Win
N/A
0 / 0
0

Aces (Clay Courts)

2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Aces Per Match
N/A
2.83
0
Most Aces in a match
N/A
33%
0
Over 0.5 Aces
N/A
100%
0
Over 1.5 Aces
N/A
50%
0
Over 2.5 Aces
N/A
50%
0
Over 3.5 Aces
N/A
50%
0
Over 4.5 Aces
N/A
33%
0
Over 5.5 Aces
N/A
0%
0
Over 6.5 Aces
N/A
0%
0
Over 7.5 Aces
N/A
0%
0
Over 8.5 Aces
N/A
0%
0
Over 9.5 Aces
N/A
0%
0
Over 14.5 Aces
N/A
0%
0
Data Point
Percentage
Number
Percentile
Aces Per Match
3.33
40 / 12
68
Over 0.5 Aces
100%
12 / 12
73
Over 1.5 Aces
67%
8 / 12
55
Over 2.5 Aces
50%
6 / 12
47
Over 3.5 Aces
50%
6 / 12
67
Over 4.5 Aces
33%
4 / 12
61
Over 5.5 Aces
17%
2 / 12
47
Over 6.5 Aces
8%
1 / 12
32
Over 7.5 Aces
8%
1 / 12
41
Over 8.5 Aces
0%
0 / 12
0
Over 9.5 Aces
0%
0 / 12
0
Over 14.5 Aces
0%
0 / 12
0

Match Total Games (Clay Courts)

2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Average Total Games (3 Set Matches)
N/A
25.5
0
Average Total Games (5 Set Matches)
N/A
N/A
0
Over 12.5
100%
97%
41
Over 13.5
90%
95%
16
Over 14.5
80%
92%
12
Over 15.5
60%
85%
6
Over 16.5
60%
74%
14
Over 17.5
60%
72%
28
Over 18.5
60%
67%
51
Over 19.5
60%
54%
74
Over 20.5
50%
49%
62
Over 21.5
50%
46%
75
Over 22.5
40%
41%
67
Over 23.5
30%
36%
44
Over 24.5
20%
26%
17
Over 25.5
20%
23%
24
Over 26.5
20%
21%
37
Over 27.5
20%
21%
49
Over 28.5
20%
15%
64
Over 29.5
0%
10%
0
Over 30.5
0%
10%
0
Data Point
Percentage
Percentile
Average Total Games (3 Set Matches)
25.33
97
Over 12.5
98%
44
Over 13.5
97%
54
Over 14.5
94%
53
Over 15.5
87%
43
Over 16.5
80%
45
Over 17.5
71%
47
Over 18.5
61%
43
Over 19.5
53%
44
Over 20.5
47%
49
Over 21.5
43%
54
Over 22.5
37%
54
Over 23.5
32%
50
Over 24.5
30%
49
Over 25.5
26%
45
Over 26.5
22%
43
Over 27.5
18%
37
Over 28.5
15%
37
Over 29.5
11%
30
Over 30.5
8%
27

Break Points Won (Clay Courts)

2025 & Last 12
Career
3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
2025
Last 12
Percentile
Breaks Per Match
N/A
4.25
0
Over 0.5
N/A
100%
0
Over 1.5
N/A
100%
0
Over 2.5
N/A
83%
0
Over 3.5
N/A
50%
0
Over 4.5
N/A
33%
0
Over 5.5
N/A
17%
0
Over 6.5
N/A
0%
0
Data Point
2025
Last 12
Percentile
Breaks Per Match
N/A
N/A
0
Over 0.5
N/A
N/A
0
Over 1.5
N/A
N/A
0
Over 2.5
N/A
N/A
0
Over 3.5
N/A
N/A
0
Over 4.5
N/A
N/A
0
Over 5.5
N/A
N/A
0
Over 6.5
N/A
N/A
0
Over 7.5
N/A
N/A
0
Over 8.5
N/A
N/A
0
Data Point
2025
Last 12
Percentile
Average Break-Points Converted (Set 1)
N/A
1.58
0
Average Break-Points Converted (Set 2)
N/A
1.75
0
Average Break-Points Converted (Set 3)
N/A
1.38
0
will Break Serve %
N/A
27%
0
will not Break Serve %
N/A
57%
0
Over 0.5
N/A
83%
0
Over 1.5
N/A
33%
0
Over 2.5
N/A
0%
0

Breaks Per Set data uses Set 1 as a sample.

3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
2025
Number
Percentile
Breaks Per Match
4.17
N/A
95
Over 0.5
100%
12 / 12
76
Over 1.5
100%
12 / 12
89
Over 2.5
83%
10 / 12
94
Over 3.5
58%
7 / 12
92
Over 4.5
42%
5 / 12
93
Over 5.5
17%
2 / 12
79
Over 6.5
0%
0 / 12
0
Data Point
2025
Number
Percentile
Breaks Per Match
N/A
N/A
0
Over 0.5
N/A
0 / 0
0
Over 1.5
N/A
0 / 0
0
Over 2.5
N/A
0 / 0
0
Over 3.5
N/A
0 / 0
0
Over 4.5
N/A
0 / 0
0
Over 5.5
N/A
0 / 0
0
Over 6.5
N/A
0 / 0
0
Over 7.5
N/A
0 / 0
0
Over 8.5
N/A
0 / 0
0
Data Point
2025
Number
Percentile
Average Break-Points Converted (Set 1)
1.67
N/A
89
Average Break-Points Converted (Set 2)
1.62
N/A
83
Average Break-Points Converted (Set 3)
1.31
N/A
51
will Break Serve %
48%
N/A
83
will not Break Serve %
52%
N/A
74
Over 0.5
92%
11 / 12
88
Over 1.5
67%
8 / 12
95
Over 2.5
8%
1 / 12
21

Breaks Per Set data uses Set 1 as a sample.

Double Faults (Clay Courts)

2025 & Last 12 Months
Career
3 Set Matches
5 Set Matches
Data Point
2025
Last 12
Percentile
Double Faults Per Match
N/A
5.33
100
Over 0.5 (1+)
N/A
100%
100
Over 1.5 (2+)
N/A
100%
100
Over 2.5 (3+)
N/A
83%
100
Over 3.5 (4+)
N/A
67%
100
Over 4.5 (5+)
N/A
67%
100
Over 5.5 (6+)
N/A
50%
100
Over 6.5 (7+)
N/A
33%
100
Over 7.5 (8+)
N/A
17%
100
Data Point
2025
Last 12
Percentile
Double Faults Per Match
N/A
N/A
100
Over 0.5 (1+)
N/A
N/A
100
Over 1.5 (2+)
N/A
N/A
100
Over 2.5 (3+)
N/A
N/A
100
Over 3.5 (4+)
N/A
N/A
100
Over 4.5 (5+)
N/A
N/A
100
Over 5.5 (6+)
N/A
N/A
100
Over 6.5 (7+)
N/A
N/A
100
Over 7.5 (8+)
N/A
N/A
100
Over 8.5 (9+)
N/A
N/A
100
Over 9.5 (10+)
N/A
N/A
100
Over 10.5 (11+)
N/A
N/A
100
3 Set Matches
5 Set Matches
Data Point
2025
Number
Percentile
Double Faults Per Match
4.58
55 / 12
13
Over 0.5 (1+)
92%
11 / 12
47
Over 1.5 (2+)
83%
10 / 12
35
Over 2.5 (3+)
67%
8 / 12
29
Over 3.5 (4+)
58%
7 / 12
22
Over 4.5 (5+)
50%
6 / 12
22
Over 5.5 (6+)
42%
5 / 12
16
Over 6.5 (7+)
33%
4 / 12
17
Over 7.5 (8+)
25%
3 / 12
16
Data Point
2025
Number
Percentile
Double Faults Per Match
N/A
0 / 0
100
Over 0.5 (1+)
N/A
N/A
100
Over 1.5 (2+)
N/A
N/A
100
Over 2.5 (3+)
N/A
N/A
100
Over 3.5 (4+)
N/A
N/A
100
Over 4.5 (5+)
N/A
N/A
100
Over 5.5 (6+)
N/A
N/A
100
Over 6.5 (7+)
N/A
N/A
100
Over 7.5 (8+)
N/A
N/A
100
Over 8.5 (9+)
N/A
N/A
100
Over 9.5 (10+)
N/A
N/A
100
Over 10.5 (11+)
N/A
N/A
100

Win Percentage (Grass Courts)

2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Match Wins
N/A
N/A
0
Match Wins (3 Sets)
N/A
N/A
0
Match Wins (5 Sets)
N/A
N/A
N/A
Wins in Straight Sets
N/A
N/A
0
Wins From Behind
N/A
N/A
0
Won At Least 1 Set
N/A
N/A
0
Set 1 Win
N/A
N/A
0
Set 2 Win
N/A
N/A
0
Set 3 Win
N/A
N/A
0
Set 4 Win
N/A
N/A
0
Set 5 Win
N/A
N/A
0
Data Point
Percentage
Number
Percentile
Match Wins
0%
0 / 2
67
Match Wins (3 Sets)
0%
0 / 2
65
Match Wins (5 Sets)
N/A
0 / 0
0
Wins in Straight Sets
0%
0 / 2
73
Wins From Behind
0%
0 times
73
Won At Least 1 Set
0%
0 / 2
61
Set 1 Win
0%
0 / 2
59
Set 2 Win
0%
0 / 2
74
Set 3 Win
N/A
0 / 0
55
Set 4 Win
N/A
0 / 0
0
Set 5 Win
N/A
0 / 0
0

Aces (Grass Courts)

2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Aces Per Match
N/A
N/A
0
Most Aces in a match
N/A
N/A
0
Over 0.5 Aces
N/A
N/A
0
Over 1.5 Aces
N/A
N/A
0
Over 2.5 Aces
N/A
N/A
0
Over 3.5 Aces
N/A
N/A
0
Over 4.5 Aces
N/A
N/A
0
Over 5.5 Aces
N/A
N/A
0
Over 6.5 Aces
N/A
N/A
0
Over 7.5 Aces
N/A
N/A
0
Over 8.5 Aces
N/A
N/A
0
Over 9.5 Aces
N/A
N/A
0
Over 14.5 Aces
N/A
N/A
0
Data Point
Percentage
Number
Percentile
Aces Per Match
N/A
0 / 0
0
Over 0.5 Aces
N/A
N/A
0
Over 1.5 Aces
N/A
N/A
0
Over 2.5 Aces
N/A
N/A
0
Over 3.5 Aces
N/A
N/A
0
Over 4.5 Aces
N/A
N/A
0
Over 5.5 Aces
N/A
N/A
0
Over 6.5 Aces
N/A
N/A
0
Over 7.5 Aces
N/A
N/A
0
Over 8.5 Aces
N/A
N/A
0
Over 9.5 Aces
N/A
N/A
0
Over 14.5 Aces
N/A
N/A
0

Match Total Games (Grass Courts)

2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Average Total Games (3 Set Matches)
N/A
N/A
0
Average Total Games (5 Set Matches)
N/A
N/A
0
Over 12.5
100%
97%
41
Over 13.5
90%
95%
16
Over 14.5
80%
92%
12
Over 15.5
60%
85%
6
Over 16.5
60%
74%
14
Over 17.5
60%
72%
28
Over 18.5
60%
67%
51
Over 19.5
60%
54%
74
Over 20.5
50%
49%
62
Over 21.5
50%
46%
75
Over 22.5
40%
41%
67
Over 23.5
30%
36%
44
Over 24.5
20%
26%
17
Over 25.5
20%
23%
24
Over 26.5
20%
21%
37
Over 27.5
20%
21%
49
Over 28.5
20%
15%
64
Over 29.5
0%
10%
0
Over 30.5
0%
10%
0
Data Point
Percentage
Percentile
Average Total Games (3 Set Matches)
21.5
32
Over 12.5
98%
44
Over 13.5
97%
54
Over 14.5
94%
53
Over 15.5
87%
43
Over 16.5
80%
45
Over 17.5
71%
47
Over 18.5
61%
43
Over 19.5
53%
44
Over 20.5
47%
49
Over 21.5
43%
54
Over 22.5
37%
54
Over 23.5
32%
50
Over 24.5
30%
49
Over 25.5
26%
45
Over 26.5
22%
43
Over 27.5
18%
37
Over 28.5
15%
37
Over 29.5
11%
30
Over 30.5
8%
27

Break Points Won (Grass Courts)

2025 & Last 12
Career
3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
2025
Last 12
Percentile
Breaks Per Match
N/A
N/A
0
Over 0.5
N/A
N/A
0
Over 1.5
N/A
N/A
0
Over 2.5
N/A
N/A
0
Over 3.5
N/A
N/A
0
Over 4.5
N/A
N/A
0
Over 5.5
N/A
N/A
0
Over 6.5
N/A
N/A
0
Data Point
2025
Last 12
Percentile
Breaks Per Match
N/A
N/A
0
Over 0.5
N/A
N/A
0
Over 1.5
N/A
N/A
0
Over 2.5
N/A
N/A
0
Over 3.5
N/A
N/A
0
Over 4.5
N/A
N/A
0
Over 5.5
N/A
N/A
0
Over 6.5
N/A
N/A
0
Over 7.5
N/A
N/A
0
Over 8.5
N/A
N/A
0
Data Point
2025
Last 12
Percentile
Average Break-Points Converted (Set 1)
N/A
N/A
0
Average Break-Points Converted (Set 2)
N/A
N/A
0
Average Break-Points Converted (Set 3)
N/A
N/A
0
will Break Serve %
N/A
N/A
0
will not Break Serve %
N/A
N/A
0
Over 0.5
N/A
N/A
0
Over 1.5
N/A
N/A
0
Over 2.5
N/A
N/A
0

Breaks Per Set data uses Set 1 as a sample.

3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
2025
Number
Percentile
Breaks Per Match
N/A
N/A
0
Over 0.5
N/A
0 / 0
0
Over 1.5
N/A
0 / 0
0
Over 2.5
N/A
0 / 0
0
Over 3.5
N/A
0 / 0
0
Over 4.5
N/A
0 / 0
0
Over 5.5
N/A
0 / 0
0
Over 6.5
N/A
0 / 0
0
Data Point
2025
Number
Percentile
Breaks Per Match
N/A
N/A
0
Over 0.5
N/A
0 / 0
0
Over 1.5
N/A
0 / 0
0
Over 2.5
N/A
0 / 0
0
Over 3.5
N/A
0 / 0
0
Over 4.5
N/A
0 / 0
0
Over 5.5
N/A
0 / 0
0
Over 6.5
N/A
0 / 0
0
Over 7.5
N/A
0 / 0
0
Over 8.5
N/A
0 / 0
0
Data Point
2025
Number
Percentile
Average Break-Points Converted (Set 1)
N/A
N/A
0
Average Break-Points Converted (Set 2)
N/A
N/A
0
Average Break-Points Converted (Set 3)
N/A
N/A
0
will Break Serve %
N/A
N/A
0
will not Break Serve %
N/A
N/A
0
Over 0.5
N/A
0 / 0
0
Over 1.5
N/A
0 / 0
0
Over 2.5
N/A
0 / 0
0

Breaks Per Set data uses Set 1 as a sample.

Double Faults (Grass Courts)

2025 & Last 12 Months
Career
3 Set Matches
5 Set Matches
Data Point
2025
Last 12
Percentile
Double Faults Per Match
N/A
N/A
100
Over 0.5 (1+)
N/A
N/A
100
Over 1.5 (2+)
N/A
N/A
100
Over 2.5 (3+)
N/A
N/A
100
Over 3.5 (4+)
N/A
N/A
100
Over 4.5 (5+)
N/A
N/A
100
Over 5.5 (6+)
N/A
N/A
100
Over 6.5 (7+)
N/A
N/A
100
Over 7.5 (8+)
N/A
N/A
100
Data Point
2025
Last 12
Percentile
Double Faults Per Match
N/A
N/A
100
Over 0.5 (1+)
N/A
N/A
100
Over 1.5 (2+)
N/A
N/A
100
Over 2.5 (3+)
N/A
N/A
100
Over 3.5 (4+)
N/A
N/A
100
Over 4.5 (5+)
N/A
N/A
100
Over 5.5 (6+)
N/A
N/A
100
Over 6.5 (7+)
N/A
N/A
100
Over 7.5 (8+)
N/A
N/A
100
Over 8.5 (9+)
N/A
N/A
100
Over 9.5 (10+)
N/A
N/A
100
Over 10.5 (11+)
N/A
N/A
100
3 Set Matches
5 Set Matches
Data Point
2025
Number
Percentile
Double Faults Per Match
N/A
0 / 0
100
Over 0.5 (1+)
N/A
N/A
100
Over 1.5 (2+)
N/A
N/A
100
Over 2.5 (3+)
N/A
N/A
100
Over 3.5 (4+)
N/A
N/A
100
Over 4.5 (5+)
N/A
N/A
100
Over 5.5 (6+)
N/A
N/A
100
Over 6.5 (7+)
N/A
N/A
100
Over 7.5 (8+)
N/A
N/A
100
Data Point
2025
Number
Percentile
Double Faults Per Match
N/A
0 / 0
100
Over 0.5 (1+)
N/A
N/A
100
Over 1.5 (2+)
N/A
N/A
100
Over 2.5 (3+)
N/A
N/A
100
Over 3.5 (4+)
N/A
N/A
100
Over 4.5 (5+)
N/A
N/A
100
Over 5.5 (6+)
N/A
N/A
100
Over 6.5 (7+)
N/A
N/A
100
Over 7.5 (8+)
N/A
N/A
100
Over 8.5 (9+)
N/A
N/A
100
Over 9.5 (10+)
N/A
N/A
100
Over 10.5 (11+)
N/A
N/A
100

Latest Results For Ji Sung Nam

Date
Tournament
 
Player
 
Opponent

Mar 25
2025

M15 Tsukuba ITF Men
Hard

L

Ji Sung Nam

0

 - 

2

Ryo Tabata

Mar 22
2025

M15 Nishi-Tokyo ITF Men
Hard

L

Ji Sung Nam

1

 - 

2

Takuya Kumasaka

Mar 21
2025

M15 Nishi-Tokyo ITF Men
Hard

W

Ji Sung Nam

2

 - 

0

Ryo Tabata

Mar 20
2025

M15 Nishi-Tokyo ITF Men
Hard

W

Ji Sung Nam

2

 - 

0

Junhyun Lee

Mar 14
2025

M15 Hinode ITF Men
Hard

L

Ji Sung Nam

1

 - 

2

Tai Sach

Mar 13
2025

M15 Hinode ITF Men
Hard

W

Ji Sung Nam

2

 - 

1

Koki Matsuda

Mar 11
2025

M15 Hinode ITF Men
Hard

W

Ji Sung Nam

2

 - 

0

Katsutoshi Suzuki

Feb 27
2025

M25 Launceston ITF Men
Hard

L

Ji Sung Nam

0

 - 

2

Yu Hsiou Hsu

Feb 24
2025

M25 Launceston ITF Men
Hard

W

Ji Sung Nam

2

 - 

0

Issei Okamura

 
Total Sets
 
Ji Sung Nam
12 - 9
Opponent
 
Total Wins
 
Ji Sung Nam
5 - 4
Opponent
 
Win Percentage
 
Ji Sung Nam
56% - 44%
Opponent

ATP Singles

Men

Singles

 

Ranking

Elo

1

Jannik Sinner

10,330

2

Alexander Zverev

7,645

3

Carlos Alcaraz

6,720

4

Taylor Fritz

5,290

5

Novak Djokovic

4,510

6

Casper Ruud

3,855

7

Jack Draper

3,780

8

Stefanos Tsitsipas

3,445

9

Andrey Rublev

3,440

10

Alex De Minaur

3,335

Titles

Tournament

Year

Result

Busan Chall. Doubles Men

2024

2nd

Taipei Chall. Doubles Men

2024

2nd

Meerbusch Chall. Men

2023

2nd

Pozoblanco Chall. Doubles Men

2023

2nd

Nonthaburi 3 Chall. Doubles Men

2023

2nd

Little Rock Chall. Doubles Men

2023

2nd

Matsuyama Chall. Men

2022

2nd

M15 Chiang Rai ITF Men

2022

Won

M15 Chiang Rai 2 ITF Doubles Men

2022

2nd

M15 Chiang Rai 3 ITF Doubles Men

2022

2nd

M15 Antalya 2 ITF Doubles Men

2022

Won

M15 Antalya 4 ITF Doubles Men

2022

2nd

M15 Monastir 22 ITF Doubles Men

2021

Won

M15 Monastir 24 ITF Doubles Men

2021

2nd

Gwangju Chall. Men

2018

2nd

Jakarta ITF Men

2012

2nd

Show All Titles

WTA Singles

Women

Singles

 

Ranking

Elo

1

Aryna Sabalenka

10,541

2

Iga Swiatek

7,470

3

Coco Gauff

6,063

4

Jessica Pegula

5,796

5

Madison Keys

4,949

6

Jasmine Paolini

4,843

7

Mirra Andreeva

4,775

8

Qinwen Zheng

4,135

9

Paula Badosa

3,821

10

Elena Rybakina

3,808

P Time : 0.0068590641021729