| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| Gransden Lodge | 0.00 km | 0.0° | Next, R=5.00 km, Angle=90.0° |
| Northampton South | 53.63 km | 270.3° | Symmetric, Rmin=5.00 km, Rmax=20.00 km, Angle=180.0°, Cylinder R=5.00 km |
| Norman Cross | 54.07 km | 49.1° | Symmetric, Rmin=5.00 km, Rmax=20.00 km, Angle=180.0°, Cylinder R=5.00 km |
| Bicester East | 88.51 km | 218.5° | Symmetric, Rmin=5.00 km, Rmax=20.00 km, Angle=180.0°, Cylinder R=5.00 km |
| Silverstone | 22.56 km | 15.0° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Oakington | 73.48 km | 73.4° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Gransden Lodge | 12.11 km | 229.2° | Cylinder R=3.00 km |
| Total: | 304.36 km | ||