Thiago Monteiro defeated Federico Delbonis 3-6 6-4 6-1 in the Santiago round of 16 on clay. The upset overturned the form book — Federico Delbonis came in leading the head-to-head 2–0, defending last year's semi-final, but Thiago Monteiro had been the form player, winning 5 of their last 9 on clay. Thiago Monteiro claimed a first win over Federico Delbonis in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-05-24 | Belgrade 2 | R16 | clay | Federico Delbonis | 7-6(6) 3-6 6-4 |
| 2019-04-22 | Barcelona | Q1 | clay | Federico Delbonis | 7-6(4) 6-3 |
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 91). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.
Monteiro T.: 2 days rest · 2 matches, 67 games (7d). Higher means fresher. About