Collin Altamirano defeated Martin Redlicki 6-2 4-6 6-4 in the Winnetka CH round of 64 on hard. The result followed the form book — Collin Altamirano came in leading the head-to-head 4–0, defending last year's semi-final. Collin Altamirano extended the head-to-head to 5–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-03-19 | USA F8 | R16 | hard | Collin Altamirano | 7-6(3) 6-7(5) 7-6(4) |
| 2015-09-21 | USA F27 | R16 | hard | Collin Altamirano | 6-4 6-4 |
| 2015-09-14 | USA F26 | R16 | hard | Collin Altamirano | 6-4 3-6 6-0 |
| 2014-06-16 | USA F15 | R32 | hard | Collin Altamirano | 4-6 6-2 6-4 |
Averages over each player's completed matches in the selected window (157 vs 80). 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