John Isner and Daniel Altmaier will clash against each other in the 2nd round of the Dallas Open for the 1st time in their career. They are scheduled to compete on Thursday at 4:00 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 John Isner who should win in 2 sets.
John Isner -> 1.27
Daniel Altmaier -> 3.76
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Prediction and head to head John Isner vs. Daniel Altmaier
There is no head to head record between John Isner and Daniel Altmaier since this will be the first time that they will square off in the main tour.
John Isner
| Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2023 | 9-14 | 2-9 | 0-2 | 4-1 | 3-2 | 0-0 |
| 2022 | 23-17 | 9-9 | 7-4 | 3-2 | 4-2 | 0-0 |
| 2021 | 23-13 | 18-7 | 5-2 | 0-3 | 0-1 | 0-0 |
| 2020 | 10-10 | 9-8 | 1-1 | 0-1 | 0-0 | 0-0 |
| 2019 | 30-18 | 22-14 | 0-0 | 3-3 | 5-1 | 0-0 |
Ranked no. 39, the American got to the 2nd round after beating Chun Hsin Tseng 7-65 7-61.
In the 1st round, Isner had a good straight sets win against Hsin Tseng (7-65 7-61). During the match, Isner scored 82 points vs Hsin Tseng’s 70. John was pretty aggressive to blast 47 winners.
Regarding the service games, Isner overpowered his opponent with 22 aces and he was exceptionally solid in conceding no double faults. John Isner was exceptionally efficient on serve to win 84% (47/56) of his 1st serve and 67% (10/15) on the second serve. This was the main reason for not conceding a single break during the match.
Isner has a solid win-loss record in the last 10 years having won 62% of his matches (277-173). 1-0 on indoor hard courts in 2023. Regarding his performance on the same surface of this tournament, Isner has an overall 32-33 win-loss record in the last years on indoor hard courts.
John has a compiled 1-2 win-loss record in 2023, 1-0 on indoor hard courts (See FULL STATS).
Previously in Dallas
Daniel Altmaier
| Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2025 | 34-35 | 11-16 | 13-8 | 9-8 | 1-3 | 0-0 |
| 2024 | 30-34 | 5-9 | 19-20 | 5-4 | 1-1 | 0-0 |
| 2023 | 32-31 | 8-13 | 21-10 | 2-5 | 1-3 | 0-0 |
| 2022 | 34-31 | 10-14 | 22-12 | 0-1 | 2-4 | 0-0 |
| 2021 | 49-27 | 7-3 | 36-20 | 5-2 | 1-2 | 0-0 |
Ranked no. 99, Altmaier reached the 2nd round after defeating Zachary Svajda 6-2 6-4.
In the 1st round, Altmaier had a good straight sets win against Svajda (6-2 6-4). During the match Altmaier scored 66 points vs Svajda’s 50. Daniel was quite aggressive to blast 28 winners.
Talking about serving, Altmaier struck 6 aces and he committed only 1 double fault for the entire match. Daniel Altmaier was extremely efficient on serve to win 80% (28/35) of his 1st serve and 57% (17/30) on the second serve. This was the main reason for not conceding a single break during the match. Daniel was clinical in his return game without wasting any break point and break Svajda 3 times.
Daniel has an overall 1-3 win-loss record in 2023, 1-1 on indoor hard courts (See FULL STATS).
Previously in Dallas
Previously, his best result was reaching the 1st round in 2022. See his history.
H2H Performance in the tournament
Matches, sets, games and points
| Points | Isner | Altmaier |
|---|---|---|
| Match played | 1 | 1 |
| Tot Set | 2 | 2 |
| Tot Games | 26 | 18 |
| Pts | 82-70 | 66-50 |
| Total Points | 152 | 116 |
| Winners | 47 | 28 |
| %Winners | 57% | 42% |
Both Isner and Altmaier played 1 match. Both players have not surrendered a single set in this event so far. Talking about their workload, Isner and Altmaier have played the same amount of sets 2. However, Isner played 8 games more than Altmaier. The American scored 47 winners (57% of the total points). On the other side, Altmaier made 28 winners (42%).
Serve Performance
| Serve | Isner | Altmaier |
|---|---|---|
| Aces | 22 | 6 |
| Avg per match | 22 | 6 |
| 1st in | 56/71 | 35/65 |
| %1st in | 79% | 54% |
| 1st pts | 47/56 | 28/35 |
| %1st pts | 84% | 80% |
| 2nd pts | 10/15 | 17/30 |
| %2nd pts | 67% | 57% |
Isner managed to score 22 aces . Altmaier recorded 6 aces . Isner won 84% points behind his first serve. He quite strong on his second serve to win 67% of the points. On the other side, Altmaier won 80% of the points on his first serve. He had a solid display on his second serve to win 57% of the points.
How they played the important points
| Breaks | Isner | Altmaier |
|---|---|---|
| Won | 0 | 3 |
| Converted | 0/5 | 3/3 |
| % Converted | 0% | 100% |
| Conceded | 1 | 3 |
| Saved | 1 | 3 |
| % Saved | 100% | 100% |
| Times Broken | 0 | 0 |
John hasn’t manged yet to break his opponent. He didn’t manage to even clinch a single break point. The American quite strong on his serve as he has never lost a single service game after saving 1 break points without even conceding a single break point. Altmaier broke his opponent 3 times with a 100% conversion rate. Altmaier was rock solid on his serve as he has never conceded a single service game after saving 3 break points.
| Isner | |||
| R1 Hsin | Total | ||
|---|---|---|---|
| Score | 7-65 7-61 | ||
| Tot Set | 2 | 2 | |
| Tot Games | 26 | 26 | |
| pts | 82-70 | 82-70 | |
| Total points | 152 | 152 | |
| Winners | 47 | 47 | |
| %Winners | 57% | 57% | |
| SERVE | |||
| Aces | 22 | 22 | |
| Double Faults | 0 | 0 | |
| 1st in | 56/71 | 56/71 | |
| % 1st in | 79% | 79% | |
| 1st pts | 47/56 | 47/56 | |
| % 1st pts | 84% | 84% | |
| 2nd pts | 10/15 | 10/15 | |
| % 2nd pts | 67% | 67% | |
| Breaks | |||
| Won | 0 | 0 | |
| Converted | 0/5 | 0/5 | |
| Converted % | 0% | 0% | |
| Conceded | 1 | 1 | |
| Saved | 1/1 | 1 | |
| Saved % | 100% | 100% | |
| Times Broken | 0 | 0 | |
| Altmaier | |||
| R1 Svajda | Total | ||
|---|---|---|---|
| Score | 6-2 6-4 | ||
| Tot Set | 2 | 2 | |
| Tot Games | 18 | 18 | |
| pts | 66-50 | 66-50 | |
| Total points | 116 | 116 | |
| Winners | 28 | 28 | |
| %Winners | 42% | 42% | |
| SERVE | |||
| Aces | 6 | 6 | |
| Double Faults | 1 | 1 | |
| 1st in | 35/65 | 35/65 | |
| % 1st in | 54% | 54% | |
| 1st pts | 28/35 | 28/35 | |
| % 1st pts | 80% | 80% | |
| 2nd pts | 17/30 | 17/30 | |
| % 2nd pts | 57% | 57% | |
| Breaks | |||
| Won | 3 | 3 | |
| Converted | 3/3 | 3/3 | |
| Converted % | 100% | 100% | |
| Conceded | 3 | 3 | |
| Saved | 3/3 | 3 | |
| Saved % | 100% | 100% | |
| Times Broken | 0 | 0 | |
Tennis Scores in Dallas
- Jeff WolfWolf – Radu AlbotAlbot (6-3 7-65) – Stats, scores, rankings
- Frances TiafoeTiafoe – Mackenzie McdonaldMcdonald (6-1 6-3) – Stats, scores, rankings
Upcoming matches in the draw
- John IsnerIsner – Daniel AltmaierAltmaier (0-0) – H2H and prediction
- Emilio GomezGomez – Miomir KecmanovicKecmanovic (0-1) – H2H and prediction
- Oscar OtteOtte – Marcos GironGiron (0-0) – H2H and prediction
- Jordan ThompsonThompson – Adrian MannarinoMannarino (1-3) – H2H and prediction
- Taylor Harry FritzHarry Fritz – Jack SockSock (3-2) – H2H and prediction
- Denis ShapovalovShapovalov – Yibing WuWu (0-0) – H2H and prediction
- Jeff WolfWolf – Frances TiafoeTiafoe (0-1) – H2H and prediction