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 | Australia | 126 |
| 2 | Italy | 39 |
| 3 | Netherlands | 36 |
| 4 | Great Britain | 26 |
| 5 | Belgium | 25 |
| 6 | New Zealand | 24 |
| 7 | Germany | 21 |
| 8 | United States | 21 |
| 9 | France | 20 |
| 10 | Russia | 15 |
| 11 | Denmark | 11 |
| 12 | Switzerland | 10 |
| 13 | Spain | 10 |
| 14 | South Africa | 9 |
| 15 | Colombia | 7 |
| 16 | Poland | 5 |
| 17 | Slovakia | 5 |
| 18 | Portugal | 5 |
| 19 | Ireland | 5 |
| 20 | Norway | 5 |
| 21 | Canada | 5 |
| 22 | Slovenia | 4 |
| 23 | Japan | 4 |
| 24 | Austria | 4 |
| 25 | Estonia | 3 |
| 26 | Luxembourg | 3 |
| 27 | Kenya | 3 |
| 28 | Kazakhstan | 2 |
| 29 | Czech Republic | 2 |
| 30 | Latvia | 2 |
| 31 | Malta | 1 |
| 32 | Lithuania | 1 |
| 33 | Taiwan | 1 |
| 34 | Israel | 1 |