Piet Hartstra
Netherlands (NED)
January 1943 (M80)
Personal Records
| 500m | 44,10 | Alkmaar (NED) | |
| 1000m | 1.31,24 | 21 March 2008 | Heerenveen (NED) |
| 1500m | 2.22,02 | Heerenveen (NED) | |
| 3000m | 5.07,28 | Heerenveen (NED) | |
| 5000m | 9.24,99 | Alkmaar (NED) |
Season Bests
| 500m | 48,00 | 13 November 2013 | Heerenveen (NED) |
| 1000m | 1.44,49 | 26 October 2013 | Alkmaar (NED) |
| 1500m | 2.46,25 | 13 November 2013 | Heerenveen (NED) |
| 500m | 47,72 | 23 November 2012 | Heerenveen (NED) |
| 1000m | 1.41,69 | 20 March 2013 | Heerenveen (NED) |
| 1500m | 2.44,45 | 23 November 2012 | Heerenveen (NED) |
| 3000m | 6.12,92 | 10 February 2013 | Deventer (NED) |
| 500m | 47,32 | 10 January 2012 | Heerenveen (NED) |
| 1000m | 1.40,58 | 26 February 2012 | Heerenveen (NED) |
| 1500m | 2.43,52 | 22 December 2011 | Heerenveen (NED) |
| 3000m | 6.35,61 | 22 January 2012 | Alkmaar (NED) |
| 500m | 46,65 | 16 February 2011 | Heerenveen (NED) |
| 1000m | 1.38,89 | 22 January 2011 | Berlin (GER) |
| 1500m | 2.33,45 | 16 February 2011 | Heerenveen (NED) |
| 3000m | 5.46,35 | 16 January 2011 | Alkmaar (NED) |
| 500m | 47,26 | 2 December 2009 | Heerenveen (NED) |
| 500m | 45,79 | 29 November 2008 | Heerenveen (NED) |
| 1000m | 1.34,65 | 23 January 2009 | Heerenveen (NED) |
| 1500m | 2.28,13 | 29 November 2008 | Heerenveen (NED) |
| 3000m | 5.36,44 | 25 January 2009 | Alkmaar (NED) |
| 500m | 44,41 | 21 January 2008 | Heerenveen (NED) |
| 1000m | 1.31,24 | 21 March 2008 | Heerenveen (NED) |
| 1500m | 2.26,73 | 21 December 2007 | Heerenveen (NED) |
| 3000m | 5.23,76 | 20 October 2007 | Hoorn (NED) |
Results
| Clubwedstrijd BZSNH | Alkmaar (NED) | 29 December 2013 | ||||||||
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| Clubwedstrijd Bergen/Zwanenwater/Schoorl/SVNH | Alkmaar (NED) | 7 December 2013 | ||||||||
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| Clubwedstrijd BGN-SCH | Heerenveen (NED) | 29 November 2013 | ||||||||
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| Clubwedstrijd BSZNH | Alkmaar (NED) | 23 November 2013 | ||||||||
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| Schaatscircuit.nl | Heerenveen (NED) | 13 November 2013 | ||||||||
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Native Language Names