
Sloane Stephens defeated Garbine Muguruza 6-3 6-4 in the Miami round of 16 on hard. The upset overturned the form book — Garbine Muguruza came in leading the head-to-head 2–1, defending last year's round of 16, but Sloane Stephens had been the form player, winning 6 of their last 10 on hard. Sloane Stephens narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2020-09-14 | Rome | R64 | clay | Garbine Muguruza | 6-3 6-3 |
| 2019-05-27 | Roland Garros | R16 | clay | Sloane Stephens | 6-4 6-3 |
| 2015-09-28 | Wuhan | R32 | hard | Garbine Muguruza | 6-2 6-0 |
Averages over each player's completed matches in the selected window (200 vs 196). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Stephens S.: 1 day rest · 4 matches, 81 games (7d). Higher means fresher. About
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