

Zachary Svajda defeated Ethan Quinn 3-6 6-3 7-5 in the Knoxville CH round of 32 on hard. The upset overturned the form book — Ethan Quinn came in ranked #47, defending last year's round of 32. Zachary Svajda extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-02-10 | Delray Beach | Q2 | hard | Zachary Svajda | 7-6(1) 6-3 |
| 2024-07-22 | Atlanta | Q1 | hard | Zachary Svajda | 6-4 7-5 |
| 2024-02-12 | Delray Beach | Q1 | hard | Zachary Svajda | 6-3 6-3 |
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
Averages over each player's completed matches in the selected window (153 vs 158). ATP, WTA & Challenger.
The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.