Sjaak Groot
Netherlands (NED)
July 1951 (M70)
Personal Records
| 500m | 48,46 | 8 January 2008 | Heerenveen (NED) |
| 1000m | 1.40,46 | 11 March 2007 | Hoorn (NED) |
| 1500m | 2.27,13 | 5 February 2008 | Heerenveen (NED) |
| 5000m | 9.14,93 | 19 February 2012 | Hoorn (NED) |
Season Bests
| 500m | 49,19 | 10 January 2015 | Hoorn (NED) |
| 1500m | 2.32,09 | 10 January 2015 | Hoorn (NED) |
| 500m | 48,70 | 12 November 2011 | Hoorn (NED) |
| 5000m | 9.14,93 | 19 February 2012 | Hoorn (NED) |
| 1500m | 2.29,68 | 12 December 2009 | Hoorn (NED) |
| 500m | 48,46 | 8 January 2008 | Heerenveen (NED) |
| 1500m | 2.27,13 | 5 February 2008 | Heerenveen (NED) |
Results
| Jan Duif Memorial | Hoorn (NED) | 10 January 2015 | ||||||||
|
||||||||||
| STGs De Westfries | Hoorn (NED) | 19 February 2012 | ||||||||
|
||||||||||
| Gezamenlijke STGs | Hoorn (NED) | 12 November 2011 | ||||||||
|
||||||||||
| Gezamenlijke Wedstrijd STG's en Marathon Comm. | Hoorn (NED) | 12 December 2009 | ||||||||
|
||||||||||
| STG Koggenland in Heerenveen | Heerenveen (NED) | 5 February 2008 | ||||||||
|
||||||||||
Native Language Names