Colin Markes defeated Zachary Svajda 6-3 6-3 in the M15 San Diego 2 round of 32 on hard. The upset overturned the form book — Zachary Svajda came in leading the head-to-head 1–0, but Colin Markes had been the form player, winning 3 of their last 6 on hard. Colin Markes claimed a first win over Zachary Svajda in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-01-06 | M25 Malibu 1 | R16 | hard | Zachary Svajda | 6-1 6-2 |
Averages over each player's completed matches in the selected window (126 vs 200). 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