C. O'Connell defeated Daniel Altmaier 6-3 6-1 in the Belgrade round of 16 on hard. C. O'Connell extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-06-13 | Stuttgart | R32 | grass | C. O'Connell | 6-3 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.
O'Connell C.: 2 days rest · 1 match, 27 games (7d) · Altmaier D.: 5 days rest · 2 matches, 47 games (7d). Higher means fresher. About
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About