
Stefan Kozlov and Kaylan Bigun will play each other in the 2nd round of the Cleveland Challenger for the 1st time in their career. They are scheduled to compete on Thursday at 1:30 pm on STADIUM. In this post, we analyze their head to head performance and prediction.
Prediction, odds and live streaming
The pick for Tennis Tonic is Stefan Kozlov who should win in 2 sets.
As per the initial odds, Stefan Kozlov is the pick to win this match.
Stefan Kozlov -> 1.31
Kaylan Bigun -> 3.2
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Prediction and head to head Stefan Kozlov vs. Kaylan Bigun
There is no head to head record between Stefan Kozlov and Kaylan Bigun since this will be the first time that they will play each other in the main tour.
Stefan Kozlov
Year | Total | Hard | Clay | I.hard | Grass | Carpet |
---|---|---|---|---|---|---|
2025 | 19-9 | 11-5 | 4-1 | 4-2 | 0-1 | 0-0 |
2024 | 37-19 | 16-9 | 17-8 | 4-2 | 0-0 | 0-0 |
2023 | 6-12 | 1-6 | 0-0 | 5-6 | 0-0 | 0-0 |
2022 | 21-34 | 14-18 | 0-5 | 4-5 | 3-6 | 0-0 |
2021 | 41-15 | 20-12 | 5-2 | 16-1 | 0-0 | 0-0 |
Ranked no. 354, the American got to the 2nd round after defeating Micah Braswell 4-6 6-3 6-4.
In the 1st round against Braswell, Kozlov recovered from a 1-set down deficit before winning (4-6 6-3 6-4). During the match, Kozlov scored 108 points vs Braswell’s 102. Stefan was extremely aggressive to blast 37 winners.
Regarding the service games, Kozlov fired 6 aces and he committed only 8 double faults. Stefan Kozlov lost the serve 4 times and he saved 3 break points. Furthermore, Kozlov put 52% of his first serves in, winning 74% (37/50) of the points behind his 1st serve and 46% (21/46) on the 2nd serve. Stefan broke Braswell 5 times after converting 25% of his break points (5/20).
Kozlov has positive record in the last 10 years having won 55% of his matches (245-198). 3-1 on indoor hard courts in 2025. Regarding his performance on the same surface of this event, Kozlov has a compiled 62-36 win-loss record in the last years on indoor hard courts.
Stefan has an aggregate 3-1 win-loss record in 2025, 3-1 on indoor hard courts (See FULL STATS).
Previously in the Cleveland Challenger
Kaylan Bigun
Year | Total | Hard | Clay | I.hard | Grass | Carpet |
---|---|---|---|---|---|---|
2025 | 6-7 | 5-6 | 0-0 | 1-1 | 0-0 | 0-0 |
2024 | 8-15 | 2-7 | 6-5 | 0-3 | 0-0 | 0-0 |
2023 | 2-9 | 0-2 | 1-5 | 1-2 | 0-0 | 0-0 |
2022 | 3-7 | 1-3 | 2-4 | 0-0 | 0-0 | 0-0 |
Ranked no. 823, Bigun got to the 2nd round after defeating Radu Albot 6-3 7-6(7).
In the 1st round, The American had a good straight sets win against Albot (6-3 7-67). During the match Bigun scored 81 points vs Albot’s 64. Kaylan was quite aggressive to blast 36 winners.
About the serving games, Bigun bagged 8 aces and he committed only 3 double faults. Overall, Kaylan Bigun was pretty efficient on serve to win 78% (36/46) of his 1st serve and 64% (14/22) on the second serve. However, this didn’t prevent his to concede the serve once. Bigun broke Albot twice after converting 33% of his break points (2/6).
Bigun has an overall 1-0 win-loss record in 2025, 1-0 on indoor hard courts (See FULL STATS).
Previously in the Cleveland Challenger
Kaylan has never competed in this tournament before.
H2H Performance in the tournament
Matches, sets, games and points
Points | Kozlov | Bigun |
---|---|---|
Match played | 1 | 1 |
Tot Set | 3 | 2 |
Tot Games | 29 | 22 |
Pts | 108-102 | 81-64 |
Total Points | 210 | 145 |
Winners | 37 | 36 |
%Winners | 34% | 44% |
Both Kozlov and Bigun played 1 match. At the moment, Stefan Kozlov conceded 1 set while Kaylan Bigun hasn’t surrendered a set so far. Kozlov has played 1 set more than Bigun (3 vs 2). Therefore, Kozlov played 7 games more than Bigun. The American scored 37 winners (34% of the total points). On the other side, Kaylan managed to score 36 winners (44%).
Serve Performance
Serve | Kozlov | Bigun |
---|---|---|
Aces | 6 | 8 |
Avg per match | 6 | 8 |
1st in | 50/96 | 46/68 |
%1st in | 52% | 68% |
1st pts | 37/50 | 36/46 |
%1st pts | 74% | 78% |
2nd pts | 21/46 | 14/22 |
%2nd pts | 46% | 64% |
Kozlov scored 6 aces . Bigun struck 8 aces . Kozlov won 74% points on his first serve. He very solid his second serve to win 46% of the points. On the other side, Bigun won 78% of the points on his first serve. He had a solid display on his second serve to win 64% of the points.
How they played the important points
Breaks | Kozlov | Bigun |
---|---|---|
Won | 5 | 2 |
Converted | 5/20 | 2/6 |
% Converted | 25% | 33% |
Conceded | 7 | 6 |
Saved | 3 | 5 |
% Saved | 43% | 83% |
Times Broken | 4 | 1 |
Stefan broke his opponent 5 times with a 25% conversion rate. Stefan lost his serve 4 times and he saved 43% of the break points that he conceded. Bigun broke his opponent twice with a 33% conversion rate. The American conceded his serve once and he saved 83% of the break points that he conceded.
Kozlov | |||
R1 Braswell |
Total | ||
---|---|---|---|
Score | 4-6 6-3 6-4 | ||
Tot Set | 3 | 3 | |
Tot Games | 29 | 29 | |
pts | 108-102 | 108-102 | |
Total points | 210 | 210 | |
Winners | 37 | 37 | |
%Winners | 34% | 34% | |
SERVE | |||
Aces | 6 | 6 | |
Double Faults | 8 | 8 | |
1st in | 50/96 | 50/96 | |
% 1st in | 52% | 52% | |
1st pts | 37/50 | 37/50 | |
% 1st pts | 74% | 74% | |
2nd pts | 21/46 | 21/46 | |
% 2nd pts | 46% | 46% | |
Breaks | |||
Won | 5 | 5 | |
Converted | 5/20 | 5/20 | |
Converted % | 25% | 25% | |
Conceded | 7 | 7 | |
Saved | 3/7 | 3 | |
Saved % | 43% | 43% | |
Times Broken | 4 | 4 |
Bigun | |||
R1 Albot |
Total | ||
---|---|---|---|
Score | 6-3 7-67 | ||
Tot Set | 2 | 2 | |
Tot Games | 22 | 22 | |
pts | 81-64 | 81-64 | |
Total points | 145 | 145 | |
Winners | 36 | 36 | |
%Winners | 44% | 44% | |
SERVE | |||
Aces | 8 | 8 | |
Double Faults | 3 | 3 | |
1st in | 46/68 | 46/68 | |
% 1st in | 68% | 68% | |
1st pts | 36/46 | 36/46 | |
% 1st pts | 78% | 78% | |
2nd pts | 14/22 | 14/22 | |
% 2nd pts | 64% | 64% | |
Breaks | |||
Won | 2 | 2 | |
Converted | 2/6 | 2/6 | |
Converted % | 33% | 33% | |
Conceded | 6 | 6 | |
Saved | 5/6 | 5 | |
Saved % | 83% | 83% | |
Times Broken | 1 | 1 |
Head 2 Head



Tennis Scores in Cleveland Challenger
- Murphy CassoneCassone – Juan Carlos Manuel AguilarCarlos Manuel Aguilar (6-1 6-4) – Stats, scores, rankings
- Eliot SpizzirriSpizzirri – Michael MmohMmoh (6-4 7-5) – Stats, scores, rankings
- James Kent TrotterKent Trotter – Trey HilderbrandHilderbrand (6-73 6-2 6-4) – Stats, scores, rankings
- Tyler ZinkZink – Brandon HoltHolt (w/o) – Stats, scores, rankings
Upcoming matches in the draw
- Karue SellSell – Cannon KingsleyKingsley (1-0) – H2H and prediction
- Stefan KozlovKozlov – (0-0) – H2H and prediction
- Jeff WolfWolf – (0-0) – H2H and prediction
- James Kent TrotterKent Trotter – (0-0) – H2H and prediction
- Stefan DostanicDostanic – (0-0) – H2H and prediction