All available race results Erik Jan Kooiman
| Date | Race | Rank |
| 06/05 | Omloop van de Alblasserwaard | 56 |
Rider information for 2006
| Rank | 4415 |
| Score | 0 |
| Name | Erik Jan KOOIMAN |
| Country | Netherlands |
| Team | Elite without contract |
No results available in season 2007.
Rider information for 2007
| Rank | 2896 |
| Score | 1 |
| Name | Erik Jan KOOIMAN |
| Country | Netherlands |
| Team | Elite without contract |
| Date | Race | Rank |
| 01/03 | Ster van Zwolle | 31 |
Rider information for 2008
| Rank | 4779 |
| Score | 0 |
| Name | Erik Jan KOOIMAN |
| Country | Netherlands |
| Team | Elite without contract |
| Date | Race | Rank |
| 10/05 | Circuit De Wallonie | 68 |
Rider information for 2009
| Rank | 1861 |
| Score | 6 |
| Name | Erik Jan KOOIMAN |
| Country | Netherlands |
| Team | Elite without contract |
No results available in season 2011.
Rider information for 2011
| Rank | 3636 |
| Score | 1 |
| Name | Erik Jan KOOIMAN |
| Country | Netherlands |
| Team | Elite without contract |
No results available in season 2012.
Rider information for 2012
| Rank | 2348 |
| Score | 5 |
| Name | Erik Jan KOOIMAN |
| Country | Netherlands |
| Team | Elite without contract |
No results available in season 2017.
Rider information for 2017
| Rank | 4083 |
| Score | 1 |
| Name | Erik Jan KOOIMAN |
| Country | Netherlands |
| Team | Elite without contract |