Oscar Gabriel Ortiz defeated Thiago Cigarran 5-7 6-4 10-5 in the M25 Lujan 1 q32 on clay. The upset overturned the form book — Thiago Cigarran came in leading the head-to-head 1–0. Oscar Gabriel Ortiz claimed a first win over Thiago Cigarran in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-07-01 | M25 Buenos Aires 1 | Q32 | clay | Thiago Cigarran | 5-7 6-4 10-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.