Ashiya boat racing venue basics
| Item | Detail |
|---|---|
| Location | Onga District, Fukuoka Prefecture |
| Water | Fresh water (pool-type) |
| Character | One of Japan's strongest inside-favoring venues |
| Lane 1 win rate | ~63% (among the nation's highest) |
Ashiya's Ryujin Radar Data
Ryujin Radar has since consolidated onto a single unified prediction model. The per-model (Favorite-focused / Longshot-focused / Standard) return-rate data previously published here no longer corresponds to the current product. You can check Ashiya's tracked turn-prediction hit rate and Upset Index accuracy on the performance page.
Data as of December 2025. Check the accuracy page for the latest results.