Collin Altamirano defeated Deiton Baughman 6-3 6-1 in the USA F8 qualifying round on hard. The upset overturned the form book — Deiton Baughman came in leading the head-to-head 1–0. Collin Altamirano claimed a first win over Deiton Baughman in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-09-21 | USA F27 | QF | hard | Deiton Baughman | 6-3 6-0 |
Averages over each player's completed matches in the selected window (194 vs 38). 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