| Difficult Run to Oschatz | 4,208.20 mi (6,772.45 km) |
| Difficult Run to Oschersleben | 4,114.91 mi (6,622.32 km) |
| Difficult Run to Osnabruck | 3,983.79 mi (6,411.29 km) |
| Difficult Run to Ostbevern | 3,982.54 mi (6,409.27 km) |
| Difficult Run to Osterburg | 4,111.79 mi (6,617.28 km) |
| Difficult Run to Ostercappeln | 3,989.07 mi (6,419.78 km) |
| Difficult Run to Osterhofen | 4,288.12 mi (6,901.05 km) |
| Difficult Run to Osterholz-Scharmbeck | 3,987.07 mi (6,416.57 km) |
| Difficult Run to Osternienburg | 4,150.85 mi (6,680.15 km) |
| Difficult Run to Osterode | 4,084.93 mi (6,574.06 km) |
| Difficult Run to Osterwieck | 4,095.89 mi (6,591.70 km) |
| Difficult Run to Ostfildern | 4,134.20 mi (6,653.36 km) |
| Difficult Run to Osthofen | 4,067.70 mi (6,546.33 km) |
| Difficult Run to Ostrhauderfehn | 3,944.62 mi (6,348.26 km) |
| Difficult Run to Ostringen | 4,097.59 mi (6,594.43 km) |
