Hiroyuki MURAKAMI Okayama International Circuit Qualifying Lap Time Records
| Lap Time | Racing Team | Racing Circuit | Race Car Model | Race Car Level | Year / Racing Series |
|---|---|---|---|---|---|
| 01:36.386 | Okayama International Circuit | Porsche 718 Cayman GT4 RS Clubsport | GT4 | 2025 Japan Cup Series | |
| 01:37.035 | Okayama International Circuit | Porsche 718 Cayman GT4 RS Clubsport | GT4 | 2025 Japan Cup Series |