Sion Thomas
- Races
- 8
- Best class position
- 8th M
- Mynydd Twr/Holyhead Mountain 2025
- Best category position
- 3rd MV40
- Mynydd Twr/Holyhead Mountain 2025
- Best series position
- 64th
- North Wales Mid Week Series 2025
- Average score
- 108.57
Series standings
| Season | Position |
|---|---|
| North Wales Mid Week Series 2026 M 250 MV40 55 73.42 | 344 |
| North Wales Mid Week Series 2025 M 53 MV40 16 370.70 | 64 |
| North Wales Series 2025 M 236 MV40 45 108.49 | 292 |