

Tristan Boyer defeated Learner Tien 7-6 2-6 6-3 in the Charleston CH quarter-final on hard. The upset overturned the form book — Learner Tien came in ranked #12, leading the head-to-head 1–0. Tristan Boyer claimed a first win over Learner Tien in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-06-30 | M15 Irvine 1 | QF | hard | Learner Tien | 7-5 6-3 |
Averages over each player's completed matches in the selected window (134 vs 181). 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