| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| East Farndon | 6.82 km | 250.7° | Next, R=5.00 km, Angle=90.0°, Max.alt. is 1.56 km |
| Towcester | 35.66 km | 185.6° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Rushden | 34.11 km | 52.8° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Skeffington | 39.52 km | 326.3° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| HB control point east | 20.22 km | 173.8° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| HB Finish Ring | 7.26 km | 269.8° | Cylinder R=3.00 km |
| Total: | 136.77 km | ||