| Difficult Run to Glen Parva | 3,612.75 mi (5,814.17 km) |
| Difficult Run to Glenfield | 3,609.70 mi (5,809.25 km) |
| Difficult Run to Glenrothes | 3,469.35 mi (5,583.39 km) |
| Difficult Run to Glossop | 3,564.47 mi (5,736.47 km) |
| Difficult Run to Gloucester | 3,583.65 mi (5,767.33 km) |
| Difficult Run to Godalming | 3,665.01 mi (5,898.26 km) |
| Difficult Run to Golborne | 3,538.32 mi (5,694.37 km) |
| Difficult Run to Goodmayes | 3,686.09 mi (5,932.19 km) |
| Difficult Run to Goole | 3,602.03 mi (5,796.90 km) |
| Difficult Run to Gorleston-on-Sea | 3,728.09 mi (5,999.79 km) |
| Difficult Run to Gornalwood | 3,575.36 mi (5,753.98 km) |
| Difficult Run to Gosforth | 3,548.19 mi (5,710.27 km) |
| Difficult Run to Gosport | 3,652.27 mi (5,877.76 km) |
| Difficult Run to Gourock | 3,411.30 mi (5,489.96 km) |
| Difficult Run to Grangemouth | 3,451.98 mi (5,555.42 km) |
