| Difficult Run to La Union | 4,018.57 mi (6,467.26 km) |
| Difficult Run to La Victoria de Acentejo | 3,509.79 mi (5,648.46 km) |
| Difficult Run to Laguna de Duero | 3,717.36 mi (5,982.51 km) |
| Difficult Run to Lalin | 3,528.21 mi (5,678.10 km) |
| Difficult Run to Lardero | 3,800.76 mi (6,116.73 km) |
| Difficult Run to Laredo | 3,729.94 mi (6,002.75 km) |
| Difficult Run to Las Cabezas de San Juan | 3,788.45 mi (6,096.93 km) |
| Difficult Run to Las Palmas | 3,575.30 mi (5,753.88 km) |
| Difficult Run to Las Rozas de Madrid | 3,787.80 mi (6,095.87 km) |
| Difficult Run to Las Torres de Cotillas | 3,987.94 mi (6,417.97 km) |
| Difficult Run to Lebrija | 3,783.46 mi (6,088.89 km) |
| Difficult Run to Leganes | 3,797.66 mi (6,111.74 km) |
| Difficult Run to Leon | 3,649.93 mi (5,874.00 km) |
| Difficult Run to Lepe | 3,717.49 mi (5,982.73 km) |
| Difficult Run to Linares | 3,869.54 mi (6,227.42 km) |
