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Main gathering area on each terrain step and the distribution of marathon events on different landforms.
| Terrain Step | Main Gathering Areas | ||
| 1st | Marathon running are not gathered | ||
| 2nd | Sichuan Basin, part of Yunan-guizhou Plateau, near Hexi Corridor | ||
| 3rd | the Yangtze River Delta, the Yangtze plain, North China plain, Lingnan | ||
| Distribution of Marathon Running on Different Landforms | |||
| Landform | Number | Landform | Number |
| Plain | 193 | Hill | 57 |
| Plateau | 37 | Mountain | 28 |
| Basin | 27 | ||
