Sem Koster
Netherlands (NED)
February 2001 (MN4)
Personal Records
| 500m | 43,29 | 22 October 2016 | Enschede (NED) |
| 1000m | 1.28,88 | 31 October 2015 | Haarlem (NED) |
| 1500m | 2.09,28 | 11 November 2017 | Haarlem (NED) |
| 3000m | 4.32,27 | 22 October 2016 | Enschede (NED) |
Season Bests
| 500m | 43,40 | 11 November 2017 | Haarlem (NED) |
| 1500m | 2.09,28 | 11 November 2017 | Haarlem (NED) |
| 3000m | 4.33,91 | 28 October 2017 | Haarlem (NED) |
| 500m | 43,29 | 22 October 2016 | Enschede (NED) |
| 1500m | 2.09,54 | 5 November 2016 | Heerenveen (NED) |
| 3000m | 4.32,27 | 22 October 2016 | Enschede (NED) |
| 500m | 43,49 | 19 December 2015 | Heerenveen (NED) |
| 1000m | 1.28,88 | 31 October 2015 | Haarlem (NED) |
| 1500m | 2.10,38 | 19 December 2015 | Heerenveen (NED) |
| 3000m | 4.43,75 | 31 January 2016 | Haarlem (NED) |
| 500m | 44,55 | 28 October 2014 | Heerenveen (NED) |
| 1000m | 1.29,24 | 21 February 2015 | Haarlem (NED) |
| 1500m | 2.14,70 | 3 November 2014 | Heerenveen (NED) |
| 3000m | 4.49,23 | 1 March 2015 | Haarlem (NED) |
| 500m | 45,83 | 29 December 2013 | Enschede (NED) |
| 1000m | 1.32,80 | 29 December 2013 | Enschede (NED) |
| 1500m | 2.28,87 | 22 February 2014 | Haarlem (NED) |
| 500m | 48,96 | 23 November 2012 | Haarlem (NED) |
| 1000m | 1.41,33 | 11 November 2012 | Haarlem (NED) |
| 500m | 50,35 | 28 January 2012 | Groningen (NED) |
| 1000m | 1.44,86 | 12 March 2012 | Haarlem (NED) |
| 500m | 58,60 | 14 March 2011 | Haarlem (NED) |
Results
| STG Ter Aar Trofee | Haarlem (NED) | 11 November 2017 | ||||||||
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| Kennemercup 6 | Haarlem (NED) | 28 October 2017 | ||||||||
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| Schaatscircuit.nl | Heerenveen (NED) | 3 December 2016 | ||||||||
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| Schaatscircuit.nl | Heerenveen (NED) | 5 November 2016 | ||||||||
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| Langebaan Wedstrijd Junioren t/m Masters | Hoorn (NED) | 23 October 2016 | ||||||||
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Native Language Names