Sebastian Baez defeated Luciano Darderi 6-4 6-7 6-0 7-6 in the US Open round of 128 on hard. The upset overturned the form book — Luciano Darderi came in ranked #16, leading the head-to-head 5–3. Sebastian Baez narrowed the head-to-head to 5–4.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-02-23 | Santiago | SF | clay | Luciano Darderi | 6-4 6-3 |
| 2026-02-09 | Buenos Aires | SF | clay | Luciano Darderi | 7-6(2) 6-1 |
| 2026-01-19 | Australian Open | R64 | hard | Luciano Darderi | 6-3 1-6 6-4 6-3 |
| 2025-07-14 | Bastad | QF | clay | Luciano Darderi | 6-0 6-2 |
| 2024-07-15 | Hamburg | QF | clay | Sebastian Baez | 2-6 6-4 6-4 |
| 2024-02-12 | Buenos Aires | R16 | clay | Sebastian Baez | 6-4 7-5 |
| 2024-02-05 | Cordoba | SF | clay | Luciano Darderi | 6-1 3-6 6-3 |
| 2023-02-06 | Cordoba | R16 | clay | Sebastian Baez | 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
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About
Averages over each player's completed matches in the selected window (138 vs 158). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Baez S.: 12 days rest · 1 match (14d) · Darderi L.: 12 days rest · 1 match (14d). Higher means fresher. About