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Jan Kumstat Stats, Ranking & Age
Jan Kumstat - Czech Republic
56 Average Form
W
L
L
W
L
L
W
ATP Rank
1,549
Elo Score
3
Singles - Career
Age
W-L
Career Winnings
Height
Weight
Hand
18
19 - 15
$3,797
-
-
Right-handed
Jan Kumstat is recently performing at a average level. Jan Kumstat's record in 2025 is 5 wins to 4 losses. Their career record is 19 wins to 15 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
Career Total
$3,797USD Earned
$112Earned Per Match
10
Current Ranking
ATP - Men
ATP - Men
1,549Since Jul 2024
3Elo Points
27
Win Percentage
2025 Year
2025 Year
55.6%5 / 9 Matches
AverageAverage Form
73
Win Percentage
Trailing 12 Months
Trailing 12 Months
57.1%12 / 21 Matches
AverageAverage Form
76
Win Percentage
Career Total
Career Total
55.9%19 / 34 Matches
AverageAverage Form
86
On the Court This Year
Serve Speed
2025
2025
187km/h
Unplayable* Slams Only
100
Aces
2025
2025
15Aces Per Match
Unplayable15 / 1 matches
99
First Serve
2025
2025
54%First Serve
Very BadSuccess Rate
13
Double Faults
2025
2025
9Per Match
Very Bad9 / 1 matches
2
Break Points Won
2025
2025
20%BP Converted
Very Bad1 Breaks
4
Jan Kumstat is ranked 1,549 in the ATP rankings with an ELO score of 3. In 2025, Jan Kumstat is in Average form, achieving 55.6% wins. Jan Kumstat hits 54% on first serves, averaging 15 aces per match and maintains a double fault ratio of 9. Jan Kumstat converts 20% of their break points.
Data Point
Stat
Age
18
Forehand
Right-handed
Birthday
January 2, 2007
Height
m
Win Percentage (Match / Set)
2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Match Wins
56%
57%
78
Match Wins (3 Sets)
56%
57%
77
Match Wins (5 Sets)
N/A
N/A
N/A
Wins in Straight Sets
44%
43%
86
Wins From Behind
0%
10%
0
Won At Least 1 Set
56%
57%
44
Set 1 Win
56%
52%
76
Set 2 Win
38%
45%
41
Set 3 Win
100%
100%
92
Set 4 Win
N/A
N/A
0
Set 5 Win
N/A
N/A
0
Data Point
Percentage
Number
Percentile
Match Wins
56%
19 / 34
86
Match Wins (3 Sets)
56%
19 / 34
84
Match Wins (5 Sets)
N/A
0 / 0
0
Wins in Straight Sets
41%
14 / 34
91
Wins From Behind
17%
3 times
78
Won At Least 1 Set
62%
21 / 34
52
Set 1 Win
53%
18 / 34
77
Set 2 Win
48%
16 / 33
59
Set 3 Win
71%
5 / 7
96
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
15
5.25
99
Most Aces in a match
100%
25%
89
Over 0.5 Aces
100%
100%
59
Over 1.5 Aces
100%
75%
76
Over 2.5 Aces
100%
50%
85
Over 3.5 Aces
100%
25%
89
Over 4.5 Aces
100%
25%
93
Over 5.5 Aces
100%
25%
95
Over 6.5 Aces
100%
25%
96
Over 7.5 Aces
100%
25%
97
Over 8.5 Aces
100%
25%
97
Over 9.5 Aces
100%
25%
98
Over 14.5 Aces
100%
25%
100
Jan Kumstat has an average of 15 aces per match in 2025. Jan Kumstat recorded Over 0.5 aces in 100% of their matches, Over 1.5 aces in 100%, and Over 2.5 aces in 100%.
For the higher aces count, Jan Kumstat recorded Over 3.5 aces in 100% of their matches, Over 4.5 aces in 100%, Over 5.5 aces in 100%, and Over 6.5 aces in 100%. Overall, Jan Kumstat is better than 99% of the players in terms of Aces Per Match during their latest matches.
Data Point
Percentage
Number
Percentile
Aces Per Match
7.4
74 / 10
93
Over 0.5 Aces
100%
10 / 10
75
Over 1.5 Aces
90%
9 / 10
78
Over 2.5 Aces
70%
7 / 10
67
Over 3.5 Aces
60%
6 / 10
70
Over 4.5 Aces
40%
4 / 10
57
Over 5.5 Aces
30%
3 / 10
56
Over 6.5 Aces
30%
3 / 10
67
Over 7.5 Aces
30%
3 / 10
75
Over 8.5 Aces
30%
3 / 10
81
Over 9.5 Aces
30%
3 / 10
86
Over 14.5 Aces
20%
2 / 10
91
Match Total Games Stats
2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Average Total Games (3 Set Matches)
19.78
19.67
30
Average Total Games (5 Set Matches)
N/A
N/A
0
Over 12.5
89%
95%
7
Over 13.5
89%
95%
15
Over 14.5
89%
95%
33
Over 15.5
89%
71%
62
Over 16.5
78%
67%
52
Over 17.5
67%
62%
50
Over 18.5
56%
43%
42
Over 19.5
56%
38%
65
Over 20.5
56%
38%
81
Over 21.5
44%
33%
63
Over 22.5
33%
29%
41
Over 23.5
22%
19%
19
Over 24.5
22%
19%
24
Over 25.5
22%
19%
34
Over 26.5
11%
14%
7
Over 27.5
0%
10%
0
Over 28.5
0%
5%
0
Over 29.5
0%
5%
0
Over 30.5
0%
5%
0
Data Point
Percentage
Percentile
Average Total Games (3 Set Matches)
21.03
36
Over 12.5
97%
28
Over 13.5
97%
54
Over 14.5
97%
80
Over 15.5
82%
20
Over 16.5
76%
30
Over 17.5
68%
36
Over 18.5
53%
20
Over 19.5
44%
18
Over 20.5
41%
27
Over 21.5
35%
23
Over 22.5
29%
22
Over 23.5
24%
17
Over 24.5
24%
22
Over 25.5
24%
35
Over 26.5
21%
37
Over 27.5
18%
37
Over 28.5
15%
37
Over 29.5
15%
61
Over 30.5
12%
62
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
1
2.25
0
Over 0.5
100%
75%
63
Over 1.5
0%
0%
0
Over 2.5
0%
0%
0
Over 3.5
0%
0%
0
Over 4.5
0%
0%
0
Over 5.5
0%
0%
0
Over 6.5
0%
0%
0
In 2025, Jan Kumstat has an average of 1 break points won per match in best of 3 set matches. Jan Kumstat has recorded Over 0.5 breaks of serve in 100% of their matches, Over 1.5 breaks of serve in 0%, and Over 2.5 breaks of serve in 0%. For higher break counts, Jan Kumstat has achieved Over 3.5 breaks in 0% of their matches and Over 4.5 breaks in 0%. For Jan Kumstat’s Over 5.5 break points won, the rate is 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)
0
1.12
0
Average Break-Points Converted (Set 2)
1
1.12
14
Average Break-Points Converted (Set 3)
N/A
N/A
0
will Break Serve %
0%
17%
0
will not Break Serve %
0%
50%
0
Over 0.5
0%
50%
0
Over 1.5
0%
0%
0
Over 2.5
0%
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
2.35
N/A
36
Over 0.5
80%
8 / 10
43
Over 1.5
40%
4 / 10
14
Over 2.5
20%
2 / 10
6
Over 3.5
10%
1 / 10
3
Over 4.5
10%
1 / 10
18
Over 5.5
0%
0 / 10
0
Over 6.5
0%
0 / 10
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)
1.10
N/A
52
Average Break-Points Converted (Set 2)
0.95
N/A
17
Average Break-Points Converted (Set 3)
1.50
N/A
77
will Break Serve %
28%
N/A
29
will not Break Serve %
42%
N/A
55
Over 0.5
60%
6 / 10
45
Over 1.5
20%
2 / 10
16
Over 2.5
0%
0 / 10
0
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
9
5.5
2
Over 0.5 (1+)
100%
100%
53
Over 1.5 (2+)
100%
100%
37
Over 2.5 (3+)
100%
100%
26
Over 3.5 (4+)
100%
75%
18
Over 4.5 (5+)
100%
75%
13
Over 5.5 (6+)
100%
25%
9
Over 6.5 (7+)
100%
25%
8
Over 7.5 (8+)
100%
25%
7
In their recent matches, Jan Kumstat averaged 9 double faults per match in best of 3 set matches. Jan Kumstat has recorded Over 0.5 double faults in 100% of their matches and Over 1.5 double faults in 100%. For the higher double fault counts, Jan Kumstat has recorded Over 2.5 double faults in 100% of their recent matches, Over 3.5 double faults in 100% of those, Over 4.5 double faults in 100%, and Over 5.5 double faults in 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
3.7
37 / 10
24
Over 0.5 (1+)
100%
10 / 10
32
Over 1.5 (2+)
100%
10 / 10
22
Over 2.5 (3+)
70%
7 / 10
25
Over 3.5 (4+)
30%
3 / 10
61
Over 4.5 (5+)
30%
3 / 10
36
Over 5.5 (6+)
10%
1 / 10
65
Over 6.5 (7+)
10%
1 / 10
45
Over 7.5 (8+)
10%
1 / 10
31
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 (Hard Courts)
2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Match Wins
56%
55%
78
Match Wins (3 Sets)
56%
55%
77
Match Wins (5 Sets)
N/A
N/A
N/A
Wins in Straight Sets
44%
45%
86
Wins From Behind
0%
0%
0
Won At Least 1 Set
56%
55%
44
Set 1 Win
56%
55%
76
Set 2 Win
38%
40%
41
Set 3 Win
100%
100%
92
Set 4 Win
N/A
N/A
0
Set 5 Win
N/A
N/A
0
Data Point
Percentage
Number
Percentile
Match Wins
61%
11 / 18
86
Match Wins (3 Sets)
61%
11 / 18
84
Match Wins (5 Sets)
N/A
0 / 0
0
Wins in Straight Sets
44%
8 / 18
91
Wins From Behind
22%
2 times
78
Won At Least 1 Set
67%
12 / 18
52
Set 1 Win
56%
10 / 18
77
Set 2 Win
53%
9 / 17
59
Set 3 Win
75%
3 / 4
96
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
15
15
99
Most Aces in a match
100%
100%
88
Over 0.5 Aces
100%
100%
44
Over 1.5 Aces
100%
100%
67
Over 2.5 Aces
100%
100%
79
Over 3.5 Aces
100%
100%
84
Over 4.5 Aces
100%
100%
89
Over 5.5 Aces
100%
100%
92
Over 6.5 Aces
100%
100%
94
Over 7.5 Aces
100%
100%
95
Over 8.5 Aces
100%
100%
95
Over 9.5 Aces
100%
100%
96
Over 14.5 Aces
100%
100%
98
Data Point
Percentage
Number
Percentile
Aces Per Match
12.2
61 / 5
98
Over 0.5 Aces
100%
5 / 5
65
Over 1.5 Aces
100%
5 / 5
79
Over 2.5 Aces
100%
5 / 5
86
Over 3.5 Aces
100%
5 / 5
91
Over 4.5 Aces
60%
3 / 5
70
Over 5.5 Aces
60%
3 / 5
80
Over 6.5 Aces
60%
3 / 5
87
Over 7.5 Aces
60%
3 / 5
91
Over 8.5 Aces
60%
3 / 5
93
Over 9.5 Aces
60%
3 / 5
95
Over 14.5 Aces
40%
2 / 5
96
Match Total Games (Hard Courts)
2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Average Total Games (3 Set Matches)
19.78
19.27
32
Average Total Games (5 Set Matches)
N/A
N/A
0
Over 12.5
89%
95%
7
Over 13.5
89%
95%
15
Over 14.5
89%
95%
33
Over 15.5
89%
71%
62
Over 16.5
78%
67%
52
Over 17.5
67%
62%
50
Over 18.5
56%
43%
42
Over 19.5
56%
38%
65
Over 20.5
56%
38%
81
Over 21.5
44%
33%
63
Over 22.5
33%
29%
41
Over 23.5
22%
19%
19
Over 24.5
22%
19%
24
Over 25.5
22%
19%
34
Over 26.5
11%
14%
7
Over 27.5
0%
10%
0
Over 28.5
0%
5%
0
Over 29.5
0%
5%
0
Over 30.5
0%
5%
0
Data Point
Percentage
Percentile
Average Total Games (3 Set Matches)
21.56
48
Over 12.5
97%
28
Over 13.5
97%
54
Over 14.5
97%
80
Over 15.5
82%
20
Over 16.5
76%
30
Over 17.5
68%
36
Over 18.5
53%
20
Over 19.5
44%
18
Over 20.5
41%
27
Over 21.5
35%
23
Over 22.5
29%
22
Over 23.5
24%
17
Over 24.5
24%
22
Over 25.5
24%
35
Over 26.5
21%
37
Over 27.5
18%
37
Over 28.5
15%
37
Over 29.5
15%
61
Over 30.5
12%
62
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
1
1
0
Over 0.5
100%
100%
61
Over 1.5
0%
0%
0
Over 2.5
0%
0%
0
Over 3.5
0%
0%
0
Over 4.5
0%
0%
0
Over 5.5
0%
0%
0
Over 6.5
0%
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)
0
0.00
0
Average Break-Points Converted (Set 2)
1
1.00
21
Average Break-Points Converted (Set 3)
N/A
N/A
0
will Break Serve %
0%
0%
0
will not Break Serve %
0%
0%
0
Over 0.5
0%
0%
0
Over 1.5
0%
0%
0
Over 2.5
0%
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
1.9
N/A
19
Over 0.5
80%
4 / 5
43
Over 1.5
60%
3 / 5
42
Over 2.5
40%
2 / 5
37
Over 3.5
20%
1 / 5
20
Over 4.5
20%
1 / 5
69
Over 5.5
0%
0 / 5
0
Over 6.5
0%
0 / 5
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)
0.50
N/A
5
Average Break-Points Converted (Set 2)
0.80
N/A
12
Average Break-Points Converted (Set 3)
1.50
N/A
80
will Break Serve %
33%
N/A
45
will not Break Serve %
20%
N/A
7
Over 0.5
40%
2 / 5
15
Over 1.5
20%
1 / 5
18
Over 2.5
0%
0 / 5
0
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
9
9
2
Over 0.5 (1+)
100%
100%
57
Over 1.5 (2+)
100%
100%
38
Over 2.5 (3+)
100%
100%
27
Over 3.5 (4+)
100%
100%
19
Over 4.5 (5+)
100%
100%
13
Over 5.5 (6+)
100%
100%
9
Over 6.5 (7+)
100%
100%
7
Over 7.5 (8+)
100%
100%
6
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
20 / 5
22
Over 0.5 (1+)
100%
5 / 5
35
Over 1.5 (2+)
100%
5 / 5
24
Over 2.5 (3+)
80%
4 / 5
20
Over 3.5 (4+)
20%
1 / 5
83
Over 4.5 (5+)
20%
1 / 5
59
Over 5.5 (6+)
20%
1 / 5
38
Over 6.5 (7+)
20%
1 / 5
25
Over 7.5 (8+)
20%
1 / 5
18
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 (Clay Courts)
2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Match Wins
N/A
63%
0
Match Wins (3 Sets)
N/A
63%
0
Match Wins (5 Sets)
N/A
N/A
N/A
Wins in Straight Sets
N/A
50%
0
Wins From Behind
N/A
0%
0
Won At Least 1 Set
N/A
63%
0
Set 1 Win
N/A
63%
0
Set 2 Win
N/A
50%
0
Set 3 Win
N/A
100%
0
Set 4 Win
N/A
N/A
0
Set 5 Win
N/A
N/A
0
Data Point
Percentage
Number
Percentile
Match Wins
50%
7 / 14
86
Match Wins (3 Sets)
50%
7 / 14
84
Match Wins (5 Sets)
N/A
0 / 0
0
Wins in Straight Sets
43%
6 / 14
91
Wins From Behind
0%
0 times
78
Won At Least 1 Set
57%
8 / 14
52
Set 1 Win
57%
8 / 14
77
Set 2 Win
43%
6 / 14
59
Set 3 Win
50%
1 / 2
96
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
0
Most Aces in a match
N/A
0%
0
Over 0.5 Aces
N/A
100%
0
Over 1.5 Aces
N/A
67%
0
Over 2.5 Aces
N/A
33%
0
Over 3.5 Aces
N/A
0%
0
Over 4.5 Aces
N/A
0%
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
2.6
13 / 5
53
Over 0.5 Aces
100%
5 / 5
73
Over 1.5 Aces
80%
4 / 5
71
Over 2.5 Aces
40%
2 / 5
37
Over 3.5 Aces
20%
1 / 5
22
Over 4.5 Aces
20%
1 / 5
36
Over 5.5 Aces
0%
0 / 5
0
Over 6.5 Aces
0%
0 / 5
0
Over 7.5 Aces
0%
0 / 5
0
Over 8.5 Aces
0%
0 / 5
0
Over 9.5 Aces
0%
0 / 5
0
Over 14.5 Aces
0%
0 / 5
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
17.75
0
Average Total Games (5 Set Matches)
N/A
N/A
0
Over 12.5
89%
95%
7
Over 13.5
89%
95%
15
Over 14.5
89%
95%
33
Over 15.5
89%
71%
62
Over 16.5
78%
67%
52
Over 17.5
67%
62%
50
Over 18.5
56%
43%
42
Over 19.5
56%
38%
65
Over 20.5
56%
38%
81
Over 21.5
44%
33%
63
Over 22.5
33%
29%
41
Over 23.5
22%
19%
19
Over 24.5
22%
19%
24
Over 25.5
22%
19%
34
Over 26.5
11%
14%
7
Over 27.5
0%
10%
0
Over 28.5
0%
5%
0
Over 29.5
0%
5%
0
Over 30.5
0%
5%
0
Data Point
Percentage
Percentile
Average Total Games (3 Set Matches)
19.14
16
Over 12.5
97%
28
Over 13.5
97%
54
Over 14.5
97%
80
Over 15.5
82%
20
Over 16.5
76%
30
Over 17.5
68%
36
Over 18.5
53%
20
Over 19.5
44%
18
Over 20.5
41%
27
Over 21.5
35%
23
Over 22.5
29%
22
Over 23.5
24%
17
Over 24.5
24%
22
Over 25.5
24%
35
Over 26.5
21%
37
Over 27.5
18%
37
Over 28.5
15%
37
Over 29.5
15%
61
Over 30.5
12%
62
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
2.67
0
Over 0.5
N/A
67%
0
Over 1.5
N/A
0%
0
Over 2.5
N/A
0%
0
Over 3.5
N/A
0%
0
Over 4.5
N/A
0%
0
Over 5.5
N/A
0%
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
1.50
0
Average Break-Points Converted (Set 2)
N/A
1.17
0
Average Break-Points Converted (Set 3)
N/A
N/A
0
will Break Serve %
N/A
22%
0
will not Break Serve %
N/A
67%
0
Over 0.5
N/A
67%
0
Over 1.5
N/A
0%
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
2.8
N/A
50
Over 0.5
80%
4 / 5
36
Over 1.5
20%
1 / 5
1
Over 2.5
0%
0 / 5
0
Over 3.5
0%
0 / 5
0
Over 4.5
0%
0 / 5
0
Over 5.5
0%
0 / 5
0
Over 6.5
0%
0 / 5
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)
1.70
N/A
91
Average Break-Points Converted (Set 2)
1.10
N/A
26
Average Break-Points Converted (Set 3)
N/A
N/A
0
will Break Serve %
23%
N/A
16
will not Break Serve %
63%
N/A
85
Over 0.5
80%
4 / 5
79
Over 1.5
20%
1 / 5
10
Over 2.5
0%
0 / 5
0
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
4.33
100
Over 0.5 (1+)
N/A
100%
100
Over 1.5 (2+)
N/A
100%
100
Over 2.5 (3+)
N/A
100%
100
Over 3.5 (4+)
N/A
67%
100
Over 4.5 (5+)
N/A
67%
100
Over 5.5 (6+)
N/A
0%
100
Over 6.5 (7+)
N/A
0%
100
Over 7.5 (8+)
N/A
0%
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
3.4
17 / 5
33
Over 0.5 (1+)
100%
5 / 5
38
Over 1.5 (2+)
100%
5 / 5
26
Over 2.5 (3+)
60%
3 / 5
42
Over 3.5 (4+)
40%
2 / 5
48
Over 4.5 (5+)
40%
2 / 5
27
Over 5.5 (6+)
0%
0 / 5
100
Over 6.5 (7+)
0%
0 / 5
100
Over 7.5 (8+)
0%
0 / 5
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
Win Percentage (Grass Courts)
2025 & Last 12 Months
Career
Data Point
2025
Last 12 Months
Percentile
Match Wins
N/A
50%
0
Match Wins (3 Sets)
N/A
50%
0
Match Wins (5 Sets)
N/A
N/A
N/A
Wins in Straight Sets
N/A
0%
0
Wins From Behind
N/A
50%
0
Won At Least 1 Set
N/A
50%
0
Set 1 Win
N/A
0%
0
Set 2 Win
N/A
50%
0
Set 3 Win
N/A
100%
0
Set 4 Win
N/A
N/A
0
Set 5 Win
N/A
N/A
0
Data Point
Percentage
Number
Percentile
Match Wins
50%
1 / 2
86
Match Wins (3 Sets)
50%
1 / 2
84
Match Wins (5 Sets)
N/A
0 / 0
0
Wins in Straight Sets
0%
0 / 2
91
Wins From Behind
50%
1 times
78
Won At Least 1 Set
50%
1 / 2
52
Set 1 Win
0%
0 / 2
77
Set 2 Win
50%
1 / 2
59
Set 3 Win
100%
1 / 1
96
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
29.5
0
Average Total Games (5 Set Matches)
N/A
N/A
0
Over 12.5
89%
95%
7
Over 13.5
89%
95%
15
Over 14.5
89%
95%
33
Over 15.5
89%
71%
62
Over 16.5
78%
67%
52
Over 17.5
67%
62%
50
Over 18.5
56%
43%
42
Over 19.5
56%
38%
65
Over 20.5
56%
38%
81
Over 21.5
44%
33%
63
Over 22.5
33%
29%
41
Over 23.5
22%
19%
19
Over 24.5
22%
19%
24
Over 25.5
22%
19%
34
Over 26.5
11%
14%
7
Over 27.5
0%
10%
0
Over 28.5
0%
5%
0
Over 29.5
0%
5%
0
Over 30.5
0%
5%
0
Data Point
Percentage
Percentile
Average Total Games (3 Set Matches)
29.5
95
Over 12.5
97%
28
Over 13.5
97%
54
Over 14.5
97%
80
Over 15.5
82%
20
Over 16.5
76%
30
Over 17.5
68%
36
Over 18.5
53%
20
Over 19.5
44%
18
Over 20.5
41%
27
Over 21.5
35%
23
Over 22.5
29%
22
Over 23.5
24%
17
Over 24.5
24%
22
Over 25.5
24%
35
Over 26.5
21%
37
Over 27.5
18%
37
Over 28.5
15%
37
Over 29.5
15%
61
Over 30.5
12%
62
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 Jan Kumstat
Date
Tournament
Player
Opponent
Total Sets
Jan Kumstat
8 - 11
Opponent
Total Wins
Jan Kumstat
4 - 5
Opponent
Win Percentage
Jan Kumstat
44% - 56%
Opponent
Ranking
Elo
Titles
Tournament
Year
Result
Australian Open Boys Doubles
2025
Won
Pardubicka juniorka Boys Doubles
2024
2nd
Show All Titles
Ranking
Elo