| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| HB start west | 4.92 km | 81.2° | Next, R=5.00 km, Angle=90.0°, Max.alt. is 1.37 km |
| Olney | 42.09 km | 138.0° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Waterbeach N | 62.58 km | 74.4° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Oundle | 48.57 km | 296.1° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| HB Finish Ring | 39.94 km | 262.3° | Cylinder R=3.00 km |
| Total: | 193.18 km | ||