Piet Hartstra
Netherlands (NED)
| Clubwedstrijd BGN-SCH-ZW-SVNH | Alkmaar (NED) | 13 October 2012 | ||||||||||||||||
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| 5th Masters International Heerenveen Sprint | Heerenveen (NED) | 28 - 29 March 2012 | ||||||||||||||||
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| 4th Masters International Spint Games | Heerenveen (NED) | 25 - 26 February 2012 | ||||||||||||||||
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| Clubwedstrijd Bergen/Schoorl/Zwanenwater | Alkmaar (NED) | 18 February 2012 | ||||||||||||||||
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| Volhardingbokaal 2012 | Alkmaar (NED) | 12 February 2012 | ||||||||||||||||
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| Clubwedstrijd Bergen - Schoorl | Heerenveen (NED) | 26 January 2012 | ||||||||||||||||
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| Clubwedstrijd Bergen/Schoorl/Zwanenwater | Alkmaar (NED) | 22 January 2012 | ||||||||||||||||
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| Schaatscircuit.nl | Heerenveen (NED) | 10 January 2012 | ||||||||||||||||
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| Schaatscircuit.nl | Heerenveen (NED) | 22 December 2011 | ||||||||||||||||
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| Clubwedstrijd Bergen/Schoorl/Zwanenwater | Alkmaar (NED) | 10 December 2011 | ||||||||||||||||
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Native Language Names