| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| Basingstoke | 7.45 km | 162.8° | Next, R=5.00 km, Angle=90.0° |
| Wroughton | 58.29 km | 298.6° | Cylinder R=15.00 km |
| Didcot Rail Bridge | 39.61 km | 72.0° | Cylinder R=3.00 km |
| Calvert Rail Junction | 38.37 km | 26.2° | Cylinder R=15.00 km |
| Woolley Down | 53.05 km | 212.8° | Cylinder R=5.00 km |
| Lasham Finish North | 42.64 km | 143.1° | Cylinder R=3.00 km |
| Total: | 168.29 km / 302.17 km (231.96 km) | ||