Daisuke Sumizawa defeated Kazuki Nishiwaki 6-1 6-2 in the M15 Caloundra 1 round of 32 on hard. The upset overturned the form book — Kazuki Nishiwaki came in ranked #1190, leading the head-to-head 1–0. Daisuke Sumizawa claimed a first win over Kazuki Nishiwaki in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-04-01 | M15 Kashiwa 1 | Q32 | hard | Kazuki Nishiwaki | 2-6 6-2 10-8 |
Averages over each player's completed matches in the selected window (113 vs 97). 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