| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| Gransden Lodge | 0.00 km | 0.0° | Next, R=5.00 km, Angle=90.0° |
| Silverstone | 62.71 km | 258.7° | Symmetric, Rmin=5.00 km, Rmax=10.00 km, Angle=180.0°, Cylinder R=5.00 km |
| Bozeat | 27.71 km | 53.1° | Symmetric, Rmin=5.00 km, Rmax=10.00 km, Angle=180.0°, Cylinder R=5.00 km |
| Northampton South | 15.00 km | 254.6° | Symmetric, Rmin=0.50 km, Rmax=10.00 km, Angle=180.0°, Cylinder R=0.50 km |
| Hardwick | 61.35 km | 86.1° | Symmetric, Rmin=0.50 km, Rmax=10.00 km, Angle=180.0°, Cylinder R=0.50 km |
| Gransden Lodge | 8.51 km | 243.7° | Cylinder R=3.00 km |
| Total: | 175.28 km | ||