Kayla Day defeated Misaki Doi 6-4 6-2 in the Stanford round of 32 on hard. The result followed the form book — Kayla Day came in leading the head-to-head 1–0. Kayla Day extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-10-12 | W60 Rancho Santa Fe | R32 | hard | Kayla Day | 3-6 6-4 6-3 |
Averages over each player's completed matches in the selected window (200 vs 198). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About