| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| HB start west | 4.92 km | 81.2° | Next, R=5.00 km, Angle=90.0°, Max.alt. is 1.25 km |
| Ravensthorpe Reservoir | 12.90 km | 147.5° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Saltby South | 53.96 km | 19.6° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Thrapston | 46.81 km | 161.4° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| HBX-HB Finish Ring | 32.58 km | 278.6° | Cylinder R=3.00 km |
| Total: | 146.26 km | ||