Katherine Sebov defeated Arianne Hartono 6-4 3-6 6-3 in the W60 Saguenay semi-final on hard. The upset overturned the form book — Arianne Hartono came in leading the head-to-head 1–0. Katherine Sebov claimed a first win over Arianne Hartono in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-05-19 | W25 Pelham | R32 | clay | Arianne Hartono | 6-2 6-2 |
Averages over each player's completed matches in the selected window (118 vs 129). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Sebov K.: 1 day rest · 1 match, 13 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