Natsuho Arakawa defeated Anna Ulyashchenko 6-1 6-1 in the W15 Monastir 18 q32 on hard. The upset overturned the form book — Anna Ulyashchenko came in leading the head-to-head 2–0, but Natsuho Arakawa had been the form player, winning 6 of their last 8 on hard. Natsuho Arakawa claimed a first win over Anna Ulyashchenko in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-09-27 | W15 Cancun 2 | Q32 | hard | Anna Ulyashchenko | 4-6 6-3 14-12 |
| 2021-05-10 | W15 Monastir 17 | Q32 | hard | Anna Ulyashchenko | 6-4 1-6 11-9 |
Averages over each player's completed matches in the selected window (167 vs 68). 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