All available race results Sierk Jan de Haan
| Date | Race | Rank |
| 22/08 | Groningen - Münster | 99 |
Rider information for 2003
| Rank | 2672 |
| Score | 0 |
| Name | Sierk Jan DE HAAN |
| Country | Netherlands |
| Team | Stichting Wielerontwikkeling Espoirs - Moser - AH |
| Date | Race | Rank |
| 06/03 | Ster van Zwolle | 52 |
| 04/09 | Profronde van Midden-Zeeland | 63 |
Rider information for 2004
| Rank | 2563 |
| Score | 0 |
| Name | Sierk Jan DE HAAN |
| Country | Netherlands |
| Team | Cycling Team Bert Story - Piels |
| Date | Race | Rank |
| 24/08 | Druivenkoers - Overijse | 68 |
Rider information for 2005
Rider Sierk Jan de Haan is not classified in 2005.
No results available in season 2006.
Rider information for 2006
| Rank | 3065 |
| Score | 0 |
| Name | Sierk Jan DE HAAN |
| Country | Netherlands |
| Team | B&E Cycling Team |
| Date | Race | Rank |
| 27/06 | Profronde van Fryslân | 30 |
| 04/08 | Rund um die Hainleite | 38 |
| 16/10 | Nationale Sluitingsprijs Putte-Kapellen | 58 |
Rider information for 2007
| Rank | 3433 |
| Score | 0 |
| Name | Sierk Jan DE HAAN |
| Country | Netherlands |
| Team | Time - van Hemert |
No results available in season 2008.
Rider information for 2008
| Rank | 3070 |
| Score | 1 |
| Name | Sierk Jan DE HAAN |
| Country | Netherlands |
| Team | Elite without contract |
No results available in season 2009.
Rider information for 2009
| Rank | 1316 |
| Score | 13 |
| Name | Sierk Jan DE HAAN |
| Country | Netherlands |
| Team | Elite without contract |
| Date | Race | Rank |
| 06/03 | Ster van Zwolle | 18 |
| Ster Elektrotoer | ||
| 16/06 | Prologue | 50 |
| 17/06 | Stage 2 | 95 |
| 18/06 | Stage 3 | 91 |
| 04/07 | Dwars door het Hageland | 114 |
| Tour of Qinghai Lake | ||
| 17/07 | Stage 1 | 113 |
| 18/07 | Stage 2 | 110 |
| 19/07 | Stage 3 | 118 |
| 20/07 | Stage 4 | 90 |
| 21/07 | Stage 5 | 69 |
| 22/07 | Stage 6 | 78 |
| 23/07 | Stage 7 | 103 |
| 24/07 | Stage 8 | 93 |
| 25/07 | Stage 9 | 102 |
| General Classification | 103 | |
| 13/08 | Dutch Food Valley Classic | 78 |
| 03/10 | Münsterland Giro | 67 |
| 12/10 | Nationale Sluitingsprijs Putte-Kapellen | 121 |
Rider information for 2010
| Rank | 4089 |
| Score | 0 |
| Name | Sierk Jan DE HAAN |
| Country | Netherlands |
| Team | Cyclingteam Jo Piels |
| Date | Race | Rank |
| 26/02 | Ster van Zwolle | 98 |
| Delta Tour Zeeland | ||
| 10/06 | Prologue | 48 |
| 11/06 | Stage 2 | 103 |
| 12/06 | Stage 3 | 76 |
| General Classification | 41 | |
| Ster ZLM Toer - GP Jan Van Heeswijk | ||
| 15/06 | Prologue | 59 |
| 16/06 | Stage 1 | 99 |
| 17/06 | Stage 2 | 102 |
| 18/06 | Stage 3 | 71 |
| 19/06 | Stage 4 | 90 |
| General Classification | 81 | |
| 19/08 | Dutch Food Valley Classic | 84 |
Rider information for 2011
| Rank | 4126 |
| Score | 0 |
| Name | Sierk Jan DE HAAN |
| Country | Netherlands |
| Team | Cyclingteam Jo Piels |
| Date | Race | Rank |
| Ster ZLM Toer GP Jan van Heeswijk | ||
| 14/06 | Stage 1 | 141 |
| 15/06 | Stage 2 | 132 |
| 16/06 | Stage 3 | 113 |
| 17/06 | Stage 4 | 120 |
| General Classification | 124 | |
| 17/08 | Dutch Food Valley Classic | 68 |
Rider information for 2012
| Rank | 1899 |
| Score | 7 |
| Name | Sierk Jan DE HAAN |
| Country | Netherlands |
| Team | Cyclingteam Jo Piels |