Zarina Diyas defeated Danielle Collins 6-3 6-2 in the Tokyo qualifying round 1 on hard. The upset overturned the form book — Danielle Collins came in ranked #341, leading the head-to-head 1–0, but Zarina Diyas had been the form player, winning 2 of their last 5 on hard. Zarina Diyas claimed a first win over Danielle Collins in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-07-01 | Wimbledon | R128 | grass | Danielle Collins | 6-3 7-5 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.