| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| HB start north | 5.39 km | 189.0° | Next, R=5.00 km, Angle=90.0°, Max.alt. is 1.31 km |
| Corby Glen | 50.04 km | 43.4° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Crowland Bridge | 27.00 km | 122.9° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Waterbeach N | 49.26 km | 149.5° | Symmetric, Rmin=0.50 km, Rmax=10.00 km, Angle=180.0°, Cylinder R=0.50 km |
| Silverstone | 85.20 km | 253.4° | Symmetric, Rmin=0.50 km, Rmax=10.00 km, Angle=180.0°, Cylinder R=0.50 km |
| HB control point east | 41.48 km | 11.2° | 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: | 260.24 km | ||