
Hugo Dellien defeated Roman Andres Burruchaga 6-3 1-6 6-1 in the Rio de Janeiro qualifying round 2 on clay. The upset overturned the form book — Roman Andres Burruchaga came in ranked #68. Hugo Dellien extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-02-17 | Rio de Janeiro | Q2 | clay | Hugo Dellien | 6-3 1-6 6-1 |
| 2024-02-12 | Buenos Aires | Q1 | clay | Hugo Dellien | 6-0 6-1 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.