Joao Sousa defeated Guido Pella 7-6 4-6 7-6 4-6 6-2 in the Australian Open round of 128 on hard. The upset overturned the form book — Guido Pella came in leading the head-to-head 2–1, defending last year's round of 128. Joao Sousa narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-04-22 | Barcelona | R64 | clay | Guido Pella | 3-6 7-6(1) 6-2 |
| 2019-02-18 | Rio de Janeiro | R32 | clay | Joao Sousa | 6-4 3-6 6-4 |
| 2018-05-28 | Roland Garros | R128 | clay | Guido Pella | 6-2 6-3 6-4 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (200 vs 125). ATP, WTA & Challenger.