| Difficult Run to Linslade | 3,646.12 mi (5,867.86 km) |
| Difficult Run to Lisburn | 3,385.43 mi (5,448.32 km) |
| Difficult Run to Liskeard | 3,519.84 mi (5,664.63 km) |
| Difficult Run to Litherland | 3,522.33 mi (5,668.64 km) |
| Difficult Run to Little Bookham | 3,671.82 mi (5,909.23 km) |
| Difficult Run to Little Hulton | 3,544.28 mi (5,703.98 km) |
| Difficult Run to Little Lever | 3,545.61 mi (5,706.10 km) |
| Difficult Run to Littleborough | 3,554.78 mi (5,720.87 km) |
| Difficult Run to Littlehampton | 3,676.07 mi (5,916.07 km) |
| Difficult Run to Littleover | 3,592.58 mi (5,781.70 km) |
| Difficult Run to Littleport | 3,674.20 mi (5,913.06 km) |
| Difficult Run to Liverpool | 3,523.80 mi (5,671.01 km) |
| Difficult Run to Liversedge | 3,569.66 mi (5,744.81 km) |
| Difficult Run to Livingston | 3,461.55 mi (5,570.83 km) |
| Difficult Run to Llanelli | 3,508.53 mi (5,646.44 km) |
