Races per nation
Number of races and racedays per country in 2015.
Top nations for team
83% of all racedays for Parkhotel Valkenburg were in Netherlands, Belgium or Germany.
Per country
| Pos. | Nation | Number of races | Racedays |
|---|---|---|---|
| 1 | Netherlands | 14 | 26 |
| 2 | Belgium | 13 | 16 |
| 3 | Germany | 3 | 11 |
| 4 | Sweden | 2 | 2 |
| 5 | Czech Republic | 1 | 4 |
| 6 | Estonia | 1 | 1 |
| 7 | France | 1 | 1 |
| 8 | Luxembourg | 1 | 3 |