Natsumi Kawaguchi defeated Karla Portalatin 7-5 6-3 in the W15 Cancun 26 round of 16 on hard. The result followed the form book — Natsumi Kawaguchi came in leading the head-to-head 1–0. Natsumi Kawaguchi extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-12-13 | W15 Cancun 27 | R16 | hard | Natsumi Kawaguchi | 7-6(5) 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.