| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| HB start north | 5.17 km | 183.7° | Next, R=5.00 km, Angle=90.0° |
| Bury St Edmunds | 121.95 km | 101.6° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Daventry SE | 127.84 km | 270.4° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Littleport | 103.21 km | 75.8° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| HB East | 92.18 km | 268.8° | Line 1.00 km (Radius 0.50 km) |
| Total: | 445.18 km | ||