| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| Naseby North | 5.70 km | 312.7° | Next, R=5.00 km, Angle=90.0°, Max.alt. is 1.37 km |
| Uppingham N | 27.54 km | 38.8° | Symmetric, Rmin=0.50 km, Rmax=10.00 km, Angle=180.0°, Cylinder R=0.50 km |
| Thrapston | 26.60 km | 149.0° | Symmetric, Rmin=0.50 km, Rmax=10.00 km, Angle=180.0°, Cylinder R=0.50 km |
| HB Finish Ring | 32.58 km | 278.6° | Cylinder R=3.00 km |
| Total: | 86.72 km | ||