Alison Riske defeated Garbine Muguruza 0-6 6-3 6-1 in the Indian Wells round of 64 on hard. The result followed the form book — Alison Riske came in leading the head-to-head 1–0, defending last year's round of 64. Alison Riske extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-08-27 | US Open | R128 | hard | Alison Riske | 2-6 6-1 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.