Gianluca Mager and Rei Sakamoto will square off in the quarter of the Nonthaburi 1 Challenger for the 1st time in their career. They are scheduled to play on Thursday at 10:30 am on COURT B. In the following lines you can find the head to head analysis and prediction.
Prediction, odds and live streaming
The pick for Tennis Tonic is Rei Sakamoto who should win in 3 sets.
As per the initial odds, Rei Sakamoto is the pick to win this match.
Rei Sakamoto -> 1.56
Gianluca Mager -> 2.3
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Prediction and head to head Gianluca Mager vs. Rei Sakamoto
There is no head to head record between Gianluca Mager and Rei Sakamoto since this will be the first time that they will fight against each other in the main tour.
Gianluca Mager
| Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2025 | 2-2 | 2-2 | 0-0 | 0-0 | 0-0 | 0-0 |
| 2024 | 41-25 | 0-0 | 41-24 | 0-1 | 0-0 | 0-0 |
| 2023 | 18-20 | 3-5 | 15-15 | 0-0 | 0-0 | 0-0 |
| 2022 | 20-28 | 2-5 | 17-21 | 1-2 | 0-0 | 0-0 |
| 2021 | 33-28 | 4-7 | 22-15 | 6-5 | 1-1 | 0-0 |
Ranked no. 230, Gianluca reached the quarter after defeating Murphy Cassone 7-6(6) 2-6 6-3 and Titouan Droguet 6-4 3-6 6-3.
In the 2nd round, The Italian defeated Droguet (6-4 3-6 6-3).During the match, Mager scored less points (5) than Droguet. In fact, the world no. 230 won 85 points vs Droguet’s. That means that Mager was more focused during the important points. Mager was pretty aggressive to blast 43 winners.
Regarding the service games, Mager recorded 7 aces and he committed only 4 double faults. Gianluca Mager lost the serve once and he saved 9 break points. Furthermore, Mager put 63% of his first serves in, winning 69% (43/62) of the points behind his 1st serve and 58% (21/36) on the 2nd serve. Gianluca broke Droguet twice after converting 33% of his break points (2/6).
Overall Performance in this tournament
Mager has conceded 2 set in this event to conquer 50% of the points he played.
Mager has positive record in the last 10 years having won 55% of his matches (288-231). 2-0 on hard in 2025. Regarding his performance on the same surface of this tournament, Mager has a composed 30-38 record in the last years on hard.
Mager has an aggregate 2-0 win-loss record in 2025, 2-0 on hard (See FULL STATS).
Previously in the Nonthaburi 1 Challenger
Rei Sakamoto
| Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2025 | 5-2 | 5-2 | 0-0 | 0-0 | 0-0 | 0-0 |
| 2024 | 20-16 | 12-11 | 6-3 | 2-2 | 0-0 | 0-0 |
| 2023 | 7-11 | 1-4 | 5-5 | 1-2 | 0-0 | 0-0 |
| 2022 | 5-6 | 5-3 | 0-3 | 0-0 | 0-0 | 0-0 |
Ranked no. 413, the Japanese got to the quarter after beating Daniel Cukierman 3-6 6-3 6-4, Mitsuki Wei Kang Leong 6-2 6-3, Marat Sharipov 7-6(3) 2-6 6-4 and Clement Chidekh 6-3 6-0.
In the 2nd round, Sakamoto had a good straight sets win against Chidekh (6-3 6-0). During the match Sakamoto scored 56 points vs Chidekh’s 29. Sakamoto was extremely aggressive to blast 21 winners.
Talking about serving, Sakamoto struck 7 aces and he was extremely steady in conceding no double faults for the entire match. Rei Sakamoto was quite effective on serve to win 81% (21/26) of his 1st serve and 63% (15/24) on the second serve. This was the main reason for not conceding a single break during the match. Sakamoto was clinical in his return game without wasting any break point and break Chidekh 4 times.
Overall Performance in this tournament
Sakamoto started his run at this tournament from the qualifications. In the main draw, he has conceded 2 set in the tournament to win 55% of the points he played.
The Japanese has a composed 4-0 win-loss record in 2025, 4-0 on hard (See FULL STATS).
H2H Performance in the tournament (main draw)
Matches, sets, games and points
| Points | Mager | Sakamoto |
|---|---|---|
| Match played | 2 | 4 |
| Tot Set | 6 | 10 |
| Tot Games | 58 | 91 |
| Pts | 182-185 | 304-253 |
| Total Points | 367 | 557 |
| Winners | 85 | 127 |
| %Winners | 47% | 42% |
Mager played 2 matches while Sakamoto competed in 4 matches. Sakamoto started his run from the qualifications while Mager had a direct access to the main draw. Both players lost a set in the event. Gianluca Mager surrendered 2 sets, while Rei Sakamoto dropped 2 sets. Mager has played 4 set(s) less than Sakamoto (6 vs 10). Therefore, Mager played 33 games less than Sakamoto. The Italian scored 85 winners (47% of the total points). On the other side, Sakamoto blasted 127 winners (42%).
Serve Performance
| Serve | Mager | Sakamoto |
|---|---|---|
| Aces | 16 | 47 |
| Avg per match | 8 | 11.8 |
| 1st in | 118/199 | 164/284 |
| %1st in | 59% | 58% |
| 1st pts | 85/118 | 127/164 |
| %1st pts | 72% | 77% |
| 2nd pts | 45/81 | 62/120 |
| %2nd pts | 56% | 52% |
Mager bagged 16 aces (8 per match). Sakamoto recorded 47 aces (11.8 per match). Mager won 72% points on his first serve. He pretty effective on his second serve to win 56% of the points. On the other side, Sakamoto won 77% of the points on his first serve. He had a solid display on his second serve to win 52% of the points.
How they played the important points
| Breaks | Mager | Sakamoto |
|---|---|---|
| Won | 4 | 15 |
| Converted | 4/13 | 15/28 |
| % Converted | 31% | 54% |
| Conceded | 20 | 19 |
| Saved | 16 | 12 |
| % Saved | 80% | 63% |
| Times Broken | 4 | 7 |
Mager broke his opponents 4 times with a 31% conversion rate. The Italian dropped his serve 4 times and he saved 80% of the break points that he conceded. Sakamoto broke his opponents 15 times with a 54% conversion rate. Rei conceded his serve 7 times and he saved 63% of the break points that he conceded.
| Mager | ||||
| R1 Cassone |
R2 Droguet |
Total | ||
|---|---|---|---|---|
| Score | 7-66 2-6 6-3 | 6-4 3-6 6-3 | ||
| Tot Set | 3 | 3 | 6 | |
| Tot Games | 30 | 28 | 58 | |
| pts | 97-95 | 85-90 | 182-185 | |
| Total points | 192 | 175 | 367 | |
| Winners | 42 | 43 | 85 | |
| %Winners | 43% | 51% | 47% | |
| SERVE | ||||
| Aces | 9 | 7 | 16 | |
| Double Faults | 3 | 4 | 7 | |
| 1st in | 56/101 | 62/98 | 118/199 | |
| % 1st in | 55% | 63% | 59% | |
| 1st pts | 42/56 | 43/62 | 85/118 | |
| % 1st pts | 75% | 69% | 72% | |
| 2nd pts | 24/45 | 21/36 | 45/81 | |
| % 2nd pts | 53% | 58% | 56% | |
| Breaks | ||||
| Won | 2 | 2 | 4 | |
| Converted | 2/7 | 2/6 | 4/13 | |
| Converted % | 29% | 33% | 31% | |
| Conceded | 10 | 10 | 20 | |
| Saved | 7/10 | 9/10 | 16 | |
| Saved % | 70% | 90% | 80% | |
| Times Broken | 3 | 1 | 4 | |
| Sakamoto | ||||||
| Q1 Cukierman |
Q3 Wei Kang Leong |
R1 Sharipov |
R2 Chidekh |
Total | ||
|---|---|---|---|---|---|---|
| Score | 3-6 6-3 6-4 | 6-2 6-3 | 7-63 2-6 6-4 | 6-3 6-0 | ||
| Tot Set | 3 | 2 | 3 | 2 | 10 | |
| Tot Games | 28 | 17 | 31 | 15 | 91 | |
| pts | 95-89 | 64-44 | 89-91 | 56-29 | 304-253 | |
| Total points | 184 | 108 | 180 | 85 | 557 | |
| Winners | 36 | 27 | 43 | 21 | 127 | |
| %Winners | 38% | 42% | 48% | 38% | 42% | |
| SERVE | ||||||
| Aces | 16 | 11 | 13 | 7 | 47 | |
| Double Faults | 1 | 1 | 2 | 0 | 4 | |
| 1st in | 45/87 | 36/58 | 57/89 | 26/50 | 164/284 | |
| % 1st in | 52% | 62% | 64% | 52% | 58% | |
| 1st pts | 36/45 | 27/36 | 43/57 | 21/26 | 127/164 | |
| % 1st pts | 80% | 75% | 75% | 81% | 77% | |
| 2nd pts | 21/42 | 11/22 | 15/32 | 15/24 | 62/120 | |
| % 2nd pts | 50% | 50% | 47% | 63% | 52% | |
| Breaks | ||||||
| Won | 3 | 5 | 3 | 4 | 15 | |
| Converted | 3/8 | 5/9 | 3/7 | 4/4 | 15/28 | |
| Converted % | 38% | 56% | 43% | 100% | 54% | |
| Conceded | 5 | 3 | 9 | 2 | 19 | |
| Saved | 3/5 | 2/3 | 5/9 | 2/2 | 12 | |
| Saved % | 60% | 67% | 56% | 100% | 142% | |
| Times Broken | 2 | 1 | 4 | 0 | 7 | |
Head 2 Head
LLWW
LLWWWWW 
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