Olivia Gadecki defeated Sloane Stephens 6-4 6-3 in the Guadalajara round of 32 on hard. The upset overturned the form book — Sloane Stephens came in ranked #240, leading the head-to-head 2–0, defending last year's round of 32. Olivia Gadecki claimed a first win over Sloane Stephens in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-01-14 | Australian Open | Q64 | hard | Sloane Stephens | 3-6 6-3 6-3 |
| 2024-01-15 | Australian Open | R128 | hard | Sloane Stephens | 6-3 6-1 |
Averages over each player's completed matches in the selected window (171 vs 70). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Stephens S.: 2 days 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