Jay Clarke and Stefan Kozlov will clash against each other in the 2^nd round of the Knoxville Challenger for the 1^st time in their career. They are scheduled to compete on Wednesday at 11:00 am on COURT 2. Here the head to head stats and relative prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Jay Clarke who should win in 3 sets.

As per the initial odds, Jay Clarke is the pick to win this match.
Jay Clarke -> 1.72
Stefan Kozlov -> 1.98

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Prediction and head to head Jay Clarke vs. Stefan Kozlov

There is no head to head record between Jay Clarke and Stefan Kozlov since this will be the first time that they will play each other in the main tour.

Jay Clarke

Ranked no. 203, Jay reached the 2^nd round after defeating Francisco Rocha 6-1 6-4.

In the 1^st round, The Brit had a good straight sets win against Rocha (6-1 6-4). During the match, Clarke scored 69 points vs Rocha’s 54. Jay was pretty aggressive to blast 25 winners.

Regarding the service games, Clarke managed to score 2 aces and he committed only 2 double faults. Jay Clarke lost the serve once and he saved 7 break points. Furthermore, Clarke put 57% of his first serves in, winning 66% (25/38) of the points behind his 1st serve and 62% (18/29) on the 2nd serve. The Brit broke Rocha 4 times after converting 57% of his break points (4/7).

Clarke has good record in the last 10 years having won 59% of his matches (346-241). 4-5 on indoor hard courts in 2025. Regarding his performance on the same surface of this competition, Clarke has a composed 34-36 match record in the last years on indoor hard courts.

His best result of the current season was winning the title the Skopje Challenger where he beat Nerman Fatic in the final 6-2 6-3.

Clarke has a composed 53-28 win-loss record in 2025, 4-5 on indoor hard courts (See FULL STATS).

Previously in the Knoxville Challenger

Stefan Kozlov

Ranked no. 471, Kozlov got to the 2^nd round after defeating Dominique Rolland 7-6(1) 2-6 6-1.

In the 1^st round, The American defeated Rolland (7-6¹ 2-6 6-1). During the match Kozlov scored 92 points vs Rolland’s 77. The American was pretty aggressive to blast 36 winners.

Talking about serving, Kozlov blasted 2 aces and he committed only 3 double faults. Stefan Kozlov lost the serve 5 times and he saved 3 break points. Furthermore, Kozlov put 63% of his first serves in, winning 65% (36/55) of the points behind his 1st serve and 50% (16/32) on the 2nd serve. Kozlov broke Rolland 5 times after converting 50% of his break points (5/10).

Kozlov’s best result of the current year was getting to the final in M25 Xalapa.

The American has a compiled 21-10 win-loss record in 2025, 5-2 on indoor hard courts (See FULL STATS).

Previously in the Knoxville Challenger

Previously, his best result was reaching the semifinal in 2016. See his history.

H2H Performance in the tournament

Matches, sets, games and points

Points	Clarke	Kozlov
Match played	1	1
Tot Set	2	3
Tot Games	17	28
Pts	69-54	92-77
Total Points	123	169
Winners	25	36
%Winners	36%	39%

Both Clarke and Kozlov played 1 match. At the moment, Stefan Kozlov conceded 1 set while Jay Clarke hasn’t surrendered a set so far. Clarke has played 1 set(s) less than Kozlov (2 vs 3). Therefore, Clarke played 11 games less than Kozlov. The Brit scored 25 winners (36% of the total points). On the other side, The American recorded 36 winners (39%).

Serve Performance

Serve	Clarke	Kozlov
Aces	2	2
Avg per match	2	2
1st in	38/67	55/87
%1st in	57%	63%
1st pts	25/38	36/55
%1st pts	66%	65%
2nd pts	18/29	16/32
%2nd pts	62%	50%

Clarke made 2 aces . Kozlov blasted 2 aces . Clarke won 66% points on his first serve. He extremely effective on his second serve to win 62% of the points. On the other side, Kozlov won 65% of the points on his first serve. He had a solid display on his second serve to win 50% of the points.

How they played the important points

Breaks	Clarke	Kozlov
Won	4	5
Converted	4/7	5/10
% Converted	57%	50%
Conceded	8	8
Saved	7	3
% Saved	88%	38%
Times Broken	1	5

Jay broke his opponent 4 times with a 57% conversion rate. Jay lost his serve once and he saved 88% of the break points that he conceded. The American broke his opponent 5 times with a 50% conversion rate. The American conceded his serve 5 times and he saved 38% of the break points that he conceded.

Clarke
	R1 Rocha	Total
Score	6-1 6-4
Tot Set	2	2
Tot Games	17	17
pts	69-54	69-54
Total points	123	123
Winners	25	25
%Winners	36%	36%
SERVE
Aces	2	2
Double Faults	2	2
1st in	38/67	38/67
% 1st in	57%	57%
1st pts	25/38	25/38
% 1st pts	66%	66%
2nd pts	18/29	18/29
% 2nd pts	62%	62%
Breaks
Won	4	4
Converted	4/7	4/7
Converted %	57%	57%
Conceded	8	8
Saved	7/8	7
Saved %	88%	88%
Times Broken	1	1

Kozlov
	R1 Rolland	Total
Score	7-61 2-6 6-1
Tot Set	3	3
Tot Games	28	28
pts	92-77	92-77
Total points	169	169
Winners	36	36
%Winners	39%	39%
SERVE
Aces	2	2
Double Faults	3	3
1st in	55/87	55/87
% 1st in	63%	63%
1st pts	36/55	36/55
% 1st pts	65%	65%
2nd pts	16/32	16/32
% 2nd pts	50%	50%
Breaks
Won	5	5
Converted	5/10	5/10
Converted %	50%	50%
Conceded	8	8
Saved	3/8	3
Saved %	38%	38%
Times Broken	5	5

Tennis Scores in Knoxville Challenger

• Oliver TarvetTarvet – Andre IlaganIlagan (3-6 6-3 7-6⁶) – See score progression
• Darwin BlanchBlanch – Alexander KotzenKotzen (6-4 6-2) – See score progression
• Max WiskandtWiskandt – Leo BorgBorg (4-6 6-1 6-2) – See score progression
• Nicolas MejiaMejia – Aristotelis ThanosThanos (6-4 7-5) – See score progression
• Alfredo PerezPerez – Andrew FentyFenty (6-4 6-3) – See score progression
• Shunsuke MitsuiMitsui – Dhakshineswar SureshSuresh (7-6³ 7-6⁰) – See score progression
• Murphy CassoneCassone – Matias SotoSoto (6-3 6-2) – See score progression
• Daniil GlinkaGlinka – Peter MakkMakk (6-2 6-4) – See score progression
• Cedrik-Marcel StebeStebe – Alex RybakovRybakov (6-7⁵ 7-6² 6-0) – See score progression
• Jay ClarkeClarke – Francisco RochaRocha (6-1 6-4) – See score progression
• James Kent TrotterKent Trotter – Charles BroomBroom (6-4 1-6 7-6⁴) – See score progression
• Andres MartinMartin – Tyler ZinkZink (6-3 6-2) – See score progression
• Antoine GhibaudoGhibaudo – Saba PurtseladzePurtseladze (6-2 6-2) – See score progression
• Inaki Montes-De La TorreMontes-De La Torre – Mats RosenkranzRosenkranz (6-1 2-0 ret.) – See score progression
• Stefan KozlovKozlov – Dominique RollandRolland (7-6¹ 2-6 6-1) – See score progression
• Mitchell KruegerKrueger – Hoyoung RohRoh (6-2 6-3) – See score progression
• Oliver TarvetTarvet – Andre IlaganIlagan (3-6 6-3 7-6(6)) – See score progression
• Max WiskandtWiskandt – Leo BorgBorg (4-6 6-1 6-2) – See score progression

Upcoming matches in the draw

• Stefan KozlovKozlov – Jay ClarkeClarke (0-0) – H2H and prediction
• Nicolas MejiaMejia – (1-0) – H2H and prediction
• Daniil GlinkaGlinka – Alfredo PerezPerez (0-0) – H2H and prediction
• James Kent TrotterKent Trotter – (0-0) – H2H and prediction