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 #12, 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. Lines marked “Umpiry summary” are written by Umpiry from the linked article, not quoted from it.
| 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.: 7 days rest · 1 match, 37 games (7d) · Tiafoe F.: 1 day rest · 4 matches, 153 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