

Learner Tien defeated Alexander Zverev 6-3 6-4 in the Acapulco round of 16 on hard. The upset overturned the form book — Alexander Zverev came in ranked #3, leading the head-to-head 2–0, defending last year's round of 32. Learner Tien claimed a first win over Alexander Zverev in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-01-19 | Australian Open | QF | hard | Alexander Zverev | 6-3 6-7 6-1 7-6 |
| 2025-05-26 | Roland Garros | R128 | clay | Alexander Zverev | 6-3 6-3 6-4 |
Averages over each player's completed matches in the selected window (103 vs 127). ATP, WTA & Challenger.
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 hard field, opponent-adjusted over 52 weeks). About