Head to head
1
Hard
0
1
Grass
0
Christopher O'Connell's wins on the left · Daniel Altmaier's on the right · bar lengths share one scale
All meetings (2)
| 2024 | Belgrade | Hard | R16 | Christopher O'Connell | 6-3 6-1 |
| 2023 | Stuttgart | Grass | R32 | Christopher O'Connell | 6-3 6-1 |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.