Constantin Bittoun Kouzmine and Gabriel Debru will fight against each other in the final of the Samsun Challenger for the 1st time in their career. They are scheduled to compete on Sunday at 2:00 pm on CENTER COURT. In this post, we analyze their head to head performance and prediction.
Prediction, odds and live streaming
The pick for Tennis Tonic is Gabriel Debru who should win in 2 sets.
As per the initial odds, Gabriel Debru is the pick to win this match.
Gabriel Debru -> 1.28
Constantin Bittoun Kouzmine -> 3.26
Here where top tennis events are broadcasted or streamed online (ATP, WTA).
At the challenger level, there will be free live streaming on Challenger TV.
Â
Prediction and head to head Constantin Bittoun Kouzmine vs. Gabriel Debru
There is no head to head record between Constantin Bittoun Kouzmine and Gabriel Debru since this will be the first time that they will square off in the main tour.
Constantin Bittoun Kouzmine
32 - 20win/loss
434
424
LWLLLLLWWW | Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2026 | 33-26 | 32-24 | 0-0 | 1-2 | 0-0 | 0-0 |
| 2025 | 42-34 | 38-25 | 4-5 | 0-4 | 0-0 | 0-0 |
| 2024 | 33-31 | 19-18 | 14-13 | 0-0 | 0-0 | 0-0 |
| 2023 | 44-34 | 25-16 | 15-13 | 4-5 | 0-0 | 0-0 |
| 2022 | 50-29 | 41-20 | 7-6 | 1-2 | 0-0 | 1-1 |
Ranked no. 507, Constantin reached the final after defeating Kerem Yilmaz 2-6 6-2 6-3, Grigoriy Lomakin 6-3 6-1, Cem Ilkel 6-3 6-2, Max Basing 0-6 7-6(7) 6-2, Manas Manoj Dhamne 6-4 7-5 and Kenta Miyoshi 4-6 6-4 6-4.
In the semifinal against Miyoshi, The French player recovered from a 1-set down deficit before winning (4-6 6-4 6-4).During the match, Bittoun Kouzmine scored less points (1) than Miyoshi. In fact, the world no. 507 won 93 points vs Miyoshi’s. That means that Bittoun Kouzmine was more focused during the important points. The French player was exceptionally aggressive to blast 42 winners.
Talking about the service games, Bittoun Kouzmine scored just 1 ace throughout the encounter and he committed only 2 double faults. Constantin Bittoun Kouzmine lost the serve twice and he saved 6 break points. Furthermore, Bittoun Kouzmine put 63% of his first serves in, winning 68% (42/62) of the points behind his 1st serve and 61% (22/36) on the 2nd serve. Bittoun Kouzmine broke Miyoshi 3 times after converting 43% of his break points (3/7).
Overall Performance in this tournament
Constantin started his run at this tournament from the qualifications. In the main draw, he has surrendered 3 set in this tournament to conquer 53% of the points he played.
ATP Samsun Challenger - Constantin Bittoun Kouzmine's projected path
Bittoun Kouzmine has a winning record in the last 9 years having won 58% of his matches (330-240). 31-18 on hard in 2026. Regarding his performance on the same surface of this tournament, Bittoun Kouzmine has an aggregate230-144 record in the last 9 years on hard.
The French player best result of the current season was reaching the final in M15 Kayseri.
The French player has a compiled 32-20 win-loss record in 2026, 31-18 on hard (See FULL STATS).
Previously in the Samsun Challenger
Bittoun Kouzmine has never competed in this tournament before.
Gabriel Debru
| Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2026 | 5-1 | 5-0 | 0-1 | 0-0 | 0-0 | 0-0 |
| 2025 | 3-3 | 0-0 | 3-3 | 0-0 | 0-0 | 0-0 |
| 2024 | 32-24 | 6-4 | 25-16 | 1-4 | 0-0 | 0-0 |
| 2023 | 44-26 | 4-2 | 31-13 | 9-11 | 0-0 | 0-0 |
| 2022 | 19-18 | 5-3 | 11-9 | 3-6 | 0-0 | 0-0 |
Ranked no. 700, the French player got to the final after defeating Adrian Boitan 4-6 6-2 6-2, Florent Bax 6-4 3-6 6-2, Koki Matsuda 4-6 7-6(5) 6-3 and Paul Inchauspe 6-4 6-2.
In the semifinal, Gabriel had a good straight sets win against Inchauspe (6-4 6-2). During the match Debru scored 59 points vs Inchauspe’s 43. The French player was exceptionally aggressive to blast 22 winners.
Talking about serving, Debru blasted 3 aces and he committed only 3 double faults. Overall, Gabriel Debru was pretty effective on serve to win 76% (22/29) of his 1st serve and 59% (10/17) on the second serve. However, this didn’t prevent his to concede the serve twice. Debru broke Inchauspe 5 times after converting 50% of his break points (5/10).
Overall Performance in this tournament
Debru has conceded 3 set in the tournament to win 54% of the points he played.
ATP Samsun Challenger - Gabriel Debru's projected path
The French player best result of the current year was getting to the semifinal in the Samsun Challenger.
Gabriel has an overall 4-1 win-loss record in 2026, 4-0 on hard (See FULL STATS).
H2H Performance in the tournament (main draw)
Matches, sets, games and points
| Points | Bittoun Kouzmine | Debru |
|---|---|---|
| Match played | 6 | 4 |
| Tot Set | 15 | 11 |
| Tot Games | 137 | 103 |
| Pts | 460-404 | 335-291 |
| Total Points | 864 | 626 |
| Winners | 193 | 152 |
| %Winners | 42% | 45% |
Bittoun Kouzmine played 6 matches while Debru competed in 4 matches. Bittoun Kouzmine started his run from the qualifications while Debru had a direct access to the main draw. Both players lost a set in the event. Constantin Bittoun Kouzmine conceded 3 sets, while Gabriel Debru conceded 3 sets. Bittoun Kouzmine has played 4 sets more than Debru (15 vs 11). Therefore, Bittoun Kouzmine played 34 games more than Debru. The French player scored 193 winners (42% of the total points). On the other side, The French player bagged 152 winners (45%).
Serve Performance
| Serve | Bittoun Kouzmine | Debru |
|---|---|---|
| Aces | 12 | 20 |
| Avg per match | 2 | 5 |
| 1st in | 283/453 | 201/305 |
| %1st in | 62% | 66% |
| 1st pts | 193/283 | 152/201 |
| %1st pts | 68% | 76% |
| 2nd pts | 98/170 | 52/104 |
| %2nd pts | 58% | 50% |
Bittoun Kouzmine bagged 12 aces (2 per match). Debru blasted 20 aces (5 per match). Bittoun Kouzmine won 68% points on his first serve. He quite strong on his second serve to win 58% of the points. On the other side, Debru won 76% 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 | Bittoun Kouzmine | Debru |
|---|---|---|
| Won | 22 | 17 |
| Converted | 22/38 | 17/37 |
| % Converted | 58% | 46% |
| Conceded | 43 | 20 |
| Saved | 31 | 11 |
| % Saved | 72% | 55% |
| Times Broken | 12 | 9 |
The French player broke his opponents 22 times with a 58% conversion rate. Constantin conceded his serve 12 times and he saved 72% of the break points that he conceded. Debru broke his opponents 17 times with a 46% conversion rate. Debru conceded his serve 9 times and he saved 55% of the break points that he conceded.
| Bittoun Kouzmine | ||||||||
| Q1 Yilmaz |
Q3 Lomakin |
R1 Ilkel |
R2 Basing |
1/4 Manoj Dhamne |
1/2 Miyoshi |
Total | ||
|---|---|---|---|---|---|---|---|---|
| Score | 2-6 6-2 6-3 | 6-3 6-1 | 6-3 6-2 | 0-6 7-67 6-2 | 6-4 7-5 | 4-6 6-4 6-4 | ||
| Tot Set | 3 | 2 | 2 | 3 | 2 | 3 | 15 | |
| Tot Games | 25 | 16 | 17 | 27 | 22 | 30 | 137 | |
| pts | 85-77 | 54-28 | 67-50 | 90-98 | 71-57 | 93-94 | 460-404 | |
| Total points | 162 | 82 | 117 | 188 | 128 | 187 | 864 | |
| Winners | 27 | 27 | 28 | 37 | 32 | 42 | 193 | |
| %Winners | 32% | 50% | 42% | 41% | 45% | 45% | 42% | |
| SERVE | ||||||||
| Aces | 3 | 2 | 3 | 3 | 0 | 1 | 12 | |
| Double Faults | 4 | 0 | 3 | 2 | 0 | 2 | 11 | |
| 1st in | 50/83 | 31/39 | 39/67 | 59/100 | 42/66 | 62/98 | 283/453 | |
| % 1st in | 60% | 79% | 58% | 59% | 64% | 63% | 62% | |
| 1st pts | 27/50 | 27/31 | 28/39 | 37/59 | 32/42 | 42/62 | 193/283 | |
| % 1st pts | 54% | 87% | 72% | 63% | 76% | 68% | 68% | |
| 2nd pts | 18/33 | 5/8 | 17/28 | 22/41 | 14/24 | 22/36 | 98/170 | |
| % 2nd pts | 55% | 63% | 61% | 54% | 58% | 61% | 58% | |
| Breaks | ||||||||
| Won | 6 | 4 | 3 | 3 | 3 | 3 | 22 | |
| Converted | 6/6 | 4/6 | 3/7 | 3/7 | 3/5 | 3/7 | 22/38 | |
| Converted % | 100% | 67% | 43% | 43% | 60% | 43% | 58% | |
| Conceded | 11 | 0 | 4 | 14 | 6 | 8 | 43 | |
| Saved | 6/11 | 0/0 | 4/4 | 10/14 | 5/6 | 6/8 | 31 | |
| Saved % | 55% | – | 100% | 71% | 83% | 75% | 64% | |
| Times Broken | 5 | 0 | 0 | 4 | 1 | 2 | 12 | |
| Debru | ||||||||
| R1 Boitan |
R2 Bax |
1/4 Matsuda |
1/2 Inchauspe |
Total | ||||
|---|---|---|---|---|---|---|---|---|
| Score | 4-6 6-2 6-2 | 6-4 3-6 6-2 | 4-6 7-65 6-3 | 6-4 6-2 | ||||
| Tot Set | 3 | 3 | 3 | 2 | 11 | |||
| Tot Games | 26 | 27 | 32 | 18 | 103 | |||
| pts | 83-67 | 92-87 | 101-94 | 59-43 | 335-291 | |||
| Total points | 150 | 179 | 195 | 102 | 626 | |||
| Winners | 39 | 43 | 48 | 22 | 152 | |||
| %Winners | 47% | 47% | 48% | 37% | 45% | |||
| SERVE | ||||||||
| Aces | 9 | 2 | 6 | 3 | 20 | |||
| Double Faults | 7 | 6 | 2 | 3 | 18 | |||
| 1st in | 47/69 | 61/87 | 64/103 | 29/46 | 201/305 | |||
| % 1st in | 68% | 70% | 62% | 63% | 66% | |||
| 1st pts | 39/47 | 43/61 | 48/64 | 22/29 | 152/201 | |||
| % 1st pts | 83% | 70% | 75% | 76% | 76% | |||
| 2nd pts | 8/22 | 11/26 | 23/39 | 10/17 | 52/104 | |||
| % 2nd pts | 36% | 42% | 59% | 59% | 50% | |||
| Breaks | ||||||||
| Won | 5 | 5 | 2 | 5 | 17 | |||
| Converted | 5/13 | 5/9 | 2/5 | 5/10 | 17/37 | |||
| Converted % | 38% | 56% | 40% | 50% | 46% | |||
| Conceded | 4 | 8 | 4 | 4 | 20 | |||
| Saved | 2/4 | 5/8 | 2/4 | 2/4 | 11 | |||
| Saved % | 50% | 63% | 50% | 50% | 36% | |||
| Times Broken | 2 | 3 | 2 | 2 | 9 | |||
Head 2 Head
WWWWWWWWWW
WWWWW 
Upcoming matches in the draw
- Constantin Bittoun KouzmineBittoun Kouzmine – (0-0) – H2H and prediction
