| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| Sermington Aqueduct | 4.05 km | 147.8° | Next, R=5.00 km, Angle=90.0° |
| Swindon South | 34.91 km | 55.0° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Elkstone S | 37.39 km | 323.3° | Symmetric, Rmin=2.00 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=2.00 km |
| Avebury | 43.57 km | 163.8° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Keevil Finish East | 19.81 km | 234.8° | Line 2.00 km (Radius 1.00 km) |
| Total: | 135.67 km | ||