Preston Stearns defeated Nathan Ponwith 6-7 6-4 6-3 in the Columbus CH qualifying round 1 on hard. The upset overturned the form book — Nathan Ponwith came in ranked #1315, defending last year's round of 32, but Preston Stearns had been the form player, winning 5 of their last 9 on hard. Preston Stearns extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-11-11 | M25 Columbus 1 | R32 | hard | Preston Stearns | 6-4 6-4 |
| 2022-02-21 | M15 Naples 3 | Q32 | clay | Nathan Ponwith | 6-1 7-5 |
Averages over each player's completed matches in the selected window (26 vs 128). 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