Overview of the number of competitors per nation. Note that for races with a long history this statistic will be incomplete as historical starting lists are not always complete.
| Pos. | Nation | #Different riders |
|---|---|---|
| 1 | Italy | 214 |
| 2 | France | 158 |
| 3 | Germany | 148 |
| 4 | Belgium | 122 |
| 5 | Spain | 115 |
| 6 | Netherlands | 86 |
| 7 | Australia | 64 |
| 8 | Denmark | 50 |
| 9 | Russia | 44 |
| 10 | Switzerland | 41 |
| 11 | Great Britain | 34 |
| 12 | Poland | 31 |
| 13 | United States | 27 |
| 14 | Kazakhstan | 24 |
| 15 | Slovenia | 18 |
| 16 | Austria | 18 |
| 17 | Ukraine | 17 |
| 18 | Norway | 17 |
| 19 | Czech Republic | 16 |
| 20 | Sweden | 12 |
| 21 | South Africa | 12 |
| 22 | New Zealand | 11 |
| 23 | Ireland | 11 |
| 24 | Portugal | 9 |
| 25 | Latvia | 8 |
| 26 | Colombia | 8 |
| 27 | Luxembourg | 7 |
| 28 | Japan | 7 |
| 29 | Estonia | 7 |
| 30 | Slovakia | 7 |
| 31 | Canada | 6 |
| 32 | Lithuania | 4 |
| 33 | Argentina | 4 |
| 34 | Belarus | 4 |
| 35 | Finland | 3 |
| 36 | Brazil | 2 |
| 37 | China | 2 |
| 38 | Moldova | 2 |
| 39 | Uzbekistan | 1 |
| 40 | Rwanda | 1 |
| 41 | Mexico | 1 |
| 42 | Eritrea | 1 |
| 43 | Taiwan | 1 |
| 44 | Costa Rica | 1 |
| 45 | Venezuela | 1 |
| 46 | Algeria | 1 |
| 47 | Ecuador | 1 |
| 48 | Israel | 1 |