

Jannik Sinner advanced when Hugo Gaston retired 6-2 6-1 0-0 in the Australian Open round of 128. Jannik Sinner extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-03-22 | Miami Masters | R64 | hard | Jannik Sinner | 6-2 6-2 |
| 2021-03-08 | Marseille | R16 | hard | Jannik Sinner | 6-4 6-1 |
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 (31 vs 26). ATP, WTA & Challenger.
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.