Frances Tiafoe defeated Daniel Altmaier 6-1 6-3 in the Halle semi-final on grass. The result followed the form book — Frances Tiafoe came in ranked #20, leading the head-to-head 4–0. Frances Tiafoe extended the head-to-head to 5–0.
“He did his job very well. He played very aggressively from start to finish. I didn't have the best serve percentage, so he got into rhythm better.”
“Very positive. They were very intense matches.”
Quotes belong to their sources, linked above.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-06-09 | Stuttgart | R32 | grass | Frances Tiafoe | 6-4 4-6 |
| 2025-05-26 | Roland Garros | R16 | clay | Frances Tiafoe | 6-3 6-4 7-6 |
| 2023-05-08 | Rome Masters | R64 | clay | Frances Tiafoe | 3-6 7-5 6-3 |
| 2023-01-16 | Australian Open | R128 | hard | Frances Tiafoe | 6-3 6-3 6-7 7-6 |
Averages over each player's completed matches in the selected window (35 vs 42). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Altmaier D.: 12 days rest · 2 matches (14d) · Tiafoe F.: 6 days rest · 1 match, 29 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the grass field, opponent-adjusted over 52 weeks). About