| Difficult Run to Granada | 3,898.55 mi (6,274.11 km) |
| Difficult Run to Granadilla de Abona | 3,514.23 mi (5,655.61 km) |
| Difficult Run to Granollers | 4,045.74 mi (6,510.98 km) |
| Difficult Run to Grinon | 3,796.71 mi (6,110.21 km) |
| Difficult Run to Guadalajara | 3,817.57 mi (6,143.78 km) |
| Difficult Run to Guadarrama | 3,772.37 mi (6,071.05 km) |
| Difficult Run to Guadix | 3,917.86 mi (6,305.19 km) |
| Difficult Run to Guardamar del Segura | 4,014.56 mi (6,460.80 km) |
| Difficult Run to Guernica y Luno | 3,767.00 mi (6,062.40 km) |
| Difficult Run to Guia de Isora | 3,500.68 mi (5,633.80 km) |
| Difficult Run to Guillena | 3,766.70 mi (6,061.93 km) |
| Difficult Run to Guimar | 3,516.87 mi (5,659.85 km) |
| Difficult Run to Hellin | 3,951.49 mi (6,359.32 km) |
| Difficult Run to Herencia | 3,845.09 mi (6,188.08 km) |
| Difficult Run to Hernani | 3,800.75 mi (6,116.72 km) |
