| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| Walton | 7.28 km | 128.6° | Next, R=5.00 km, Angle=90.0°, Max.alt. is 1.52 km |
| Northampton West | 28.69 km | 165.0° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Silverstone | 17.49 km | 178.3° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Bozeat | 27.71 km | 53.1° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Lutterworth | 42.91 km | 306.4° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| HB Finish Ring | 10.32 km | 97.0° | Cylinder R=3.00 km |
| Total: | 127.11 km | ||