| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| HB3-HB start east | 6.18 km | 281.4° | Line 10.00 km (Radius 5.00 km) |
| THM-Thame Rail Bridge | 72.46 km | 179.9° | Symmetric, Rmin=0.50 km, Rmax=10.00 km, Angle=360.0°, Cylinder R=0.50 km |
| CLP-Clyffe Pypard | 72.40 km | 244.5° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=45.0°, Cylinder R=0.50 km |
| GLS-Gloucester South | 43.14 km | 323.8° | Radius1=0.50 km, Radius2=40.00 km, Radial1=302.5°, Radial2=257.5°, Cylinder R=0.50 km |
| NOS-Northampton South | 102.91 km | 65.1° | Symmetric, Rmin=0.50 km, Rmax=15.00 km, Angle=360.0°, Cylinder R=0.50 km |
| RNE-Rugby Northeast | 30.87 km | 321.8° | Symmetric, Rmin=0.50 km, Rmax=5.00 km, Angle=360.0°, Cylinder R=0.50 km |
| HBX-HB Finish Ring | 6.96 km | 67.3° | Cylinder R=3.00 km |
| Total: | 292.12 km / 466.09 km (328.74 km) | ||