C. O'Connell leads the head-to-head 2-1 since 2018 against D. Altmaier, over 3 matches.
Today on TennisEdge 32 ATP & WTA matches analysed today Model probabilities, market read and our staked picks — see today's board →| Surface | C. O'Connell | D. Altmaier |
|---|---|---|
| Clay | 1 | 0 |
| Hard | 0 | 1 |
| Grass | 1 | 0 |
| Surface | C. O'Connell | D. Altmaier |
|---|---|---|
| Hard | 1770 (138-98) | 1656 (89-92) |
| Clay | 1525 (36-37) | 1744 (125-80) |
| Grass | 1657 (21-20) | 1550 (10-17) |
ELO is computed per surface from results since 2018; the win-loss pair is that surface's record.
| Date | Winner | Score | Event |
|---|---|---|---|
| Nov. 6, 2024 | C. O'Connell | 2 - 0 | Belgrade 2 · 1/8-finals · clay |
| Aug. 12, 2023 | D. Altmaier | 2 - 1 | ATP Cincinnati · Semi-finals · hard |
| June 13, 2023 | C. O'Connell | 2 - 0 | ATP Stuttgart · 1/16-finals · grass |
| Date | Opponent | Score | Event | |
|---|---|---|---|---|
| Aug. 28, 2026 | L | Z. Piros | 1 - 1 | US Open · Final · hard |
| Aug. 26, 2026 | W | N. Budkov Kjaer | 0 - 2 | US Open · Semi-finals · hard |
| Aug. 25, 2026 | W | S. Sakellaridis | 0 - 2 | US Open · Quarter-finals · hard |
| Aug. 20, 2026 | L | T. Fritz | 2 - 0 | Cincinnati · 1/8-finals · hard |
| Aug. 18, 2026 | W | J. Fonseca | Walk Over | Cincinnati · 1/16-finals · hard |
| Date | Opponent | Score | Event | |
|---|---|---|---|---|
| Sept. 2, 2026 | L | Z. Svajda | 3 - 1 | US Open · 1/64-finals · hard |
| Aug. 26, 2026 | L | I. Buse | 0 - 2 | Winston-Salem · 1/8-finals · hard |
| Aug. 25, 2026 | W | F. Comesana | 2 - 0 | Winston-Salem · 1/16-finals · hard |
| Aug. 16, 2026 | L | L. Musetti | 0 - 2 | Cincinnati · 1/32-finals · hard |
| Aug. 14, 2026 | W | C. Wong | 1 - 2 | Cincinnati · 1/64-finals · hard |