Bethanie Mattek Sands defeated Heather Watson 6-2 6-3 in the Sydney qualifying round 2 on hard. The upset overturned the form book — Heather Watson came in ranked #340, leading the head-to-head 1–0. Bethanie Mattek Sands claimed a first win over Heather Watson in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-02-27 | Acapulco | R32 | hard | Heather Watson | 7-5 6-3 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.