Site data updated: 2026-05-28 18:14 UTC
John Isner def. Daniel Altmaier
6-3 7-6(1)
Match Information
| Date | Feb 10, 2023* |
|---|---|
| Tournament | Dallas |
| Category | ATP 500 |
| Surface | Hard |
| Round | R16 |
| Winner | John Isner |
| Score | 6-3 7-6(1) |
| Loser | Daniel Altmaier |
| Duration | 1h 17m |
| Stat | John Isner | Daniel Altmaier |
|---|---|---|
| Aces | 18 | 9 |
| Double faults | 0 | 3 |
| First serve % | 80 | 62 |
| First serve points won % | 91 | 80 |
| Second serve points won % | 73 | 62 |
| Break points saved % | — | 67 |
| Break points converted % | 33 | — |
| Service points won % | 87 | 73 |
| Return points won % | 27 | 13 |
| Total points won % | 57 | 43 |
Pre-match Comparison
| Field | John Isner | Daniel Altmaier |
|---|---|---|
| Country | USA | GER |
| Birth date | Apr 26, 1985 | Sep 12, 1998 |
| Age | 37 | 24 |
| Height | 208 | 188 |
| Handedness | Right-Handed | Right-Handed |
| Backhand style | Two-Handed Backhand | One-Handed Backhand |
| Ranking (entering) | 39 | 99 |
| Ranking points (entering) | 980 | 539 |
| Elo (entering) | 1,838 | 1,564 |
| Career W-L | 467–293 | 74–127 |
| Career earnings | $22,433,361 | $5,647,186 |
Path
John Isner's path
| Date | Round | Opponent | Score | W/L | H2H | Match data |
|---|---|---|---|---|---|---|
| Feb 9, 2023 | R32 | Chun-Hsin Tseng | 7-6(5) 7-6(1) | W | H2H | Match data |
John Isner's next match
| Date | Round | Opponent | Score | W/L | H2H | Match data |
|---|---|---|---|---|---|---|
| Feb 11, 2023 | QF | Emilio Gomez | 7-6(8) 7-5 | W | H2H | Match data |
Daniel Altmaier's path
| Date | Round | Opponent | Score | W/L | H2H | Match data |
|---|---|---|---|---|---|---|
| Feb 9, 2023 | R32 | Zachary Svajda | 6-2 6-4 | W | H2H | Match data |