By surface
| Surface | Shintaro Mochizuki | Billy Harris |
|---|---|---|
| Hard | 0 | 1 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-01-05 | ATP | United Cup | Round Robin | Hard | Billy Harris | 6-74 | 3-6 |
| Surface | Shintaro Mochizuki | Billy Harris |
|---|---|---|
| Hard | 0 | 1 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-01-05 | ATP | United Cup | Round Robin | Hard | Billy Harris | 6-74 | 3-6 |