Mua Shigeta defeated Honori Koyama 6-3 6-4 in the W25 Nanao qualifying round of 16 on carpet. The upset overturned the form book — Honori Koyama came in leading the head-to-head 3–0. Mua Shigeta claimed a first win over Honori Koyama in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-07-22 | W15 Sapporo 1 | Q32 | hard | Honori Koyama | 6-2 6-2 |
| 2024-05-14 | W15 Toyama 1 | Q32 | hard | Honori Koyama | 6-3 6-1 |
| 2024-03-17 | W15 Hinode 1 | Q64 | hard | Honori Koyama | 6-2 6-2 |
Averages over each player's completed matches in the selected window (20 vs 57). 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