| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| HB start west | 5.51 km | 80.4° | Next, R=5.00 km, Angle=90.0°, Max.alt. is 1.37 km |
| Grafham Water | 58.46 km | 105.3° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Oundle | 25.01 km | 332.0° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Hus Bos East Finish Line | 39.35 km | 262.4° | Line 1.00 km (Radius 0.50 km) |
| Total: | 122.82 km | ||