Jörnann Jonkhoff
Netherlands (NED)
August 1965 (M55)
Personal Records
| 500m | 44,50 | 15 March 2002 | Amsterdam (NED) |
| 1500m | 2.13,28 | 24 November 2001 | |
| 3000m | 4.29,06 | 11 January 1998 | Amsterdam (NED) |
| 5000m | 8.16,53 | 2 January 2011 | Amsterdam (NED) |
Season Bests
| 500m | 46,26 | 8 February 2014 | Heerenveen (NED) |
| 1500m | 2.15,95 | 8 February 2014 | Heerenveen (NED) |
| 3000m | 4.34,11 | 8 February 2014 | Heerenveen (NED) |
| 500m | 46,85 | 22 March 2013 | Amsterdam (NED) |
| 1500m | 2.19,52 | 22 March 2013 | Amsterdam (NED) |
| 500m | 47,31 | 21 January 2012 | Heerenveen (NED) |
| 3000m | 4.39,30 | 21 January 2012 | Heerenveen (NED) |
| 500m | 44,93 | 11 December 2010 | Hoorn (NED) |
| 1500m | 2.19,05 | 11 December 2010 | Hoorn (NED) |
| 3000m | 4.59,23 | 14 November 2010 | Amsterdam (NED) |
| 5000m | 8.16,53 | 2 January 2011 | Amsterdam (NED) |
| 500m | 47,65 | 6 February 2010 | Amsterdam (NED) |
| 1500m | 2.24,93 | 6 February 2010 | Amsterdam (NED) |
Results
| CK Amstelbocht / Waterland | Amsterdam (NED) | 21 March 2014 | ||||||||||||
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| Amstelbocht / STG Waterland in Thialf | Heerenveen (NED) | 8 February 2014 | ||||||||||||
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| Clubkampioenschappen Amstelbocht en Waterland / IJNG | Amsterdam (NED) | 22 March 2013 | ||||||||||||
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| Amstelbocht en Waterland | Heerenveen (NED) | 21 January 2012 | ||||||||||||
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| Selectie + Duratec Benelux Bokaal | Amsterdam (NED) | 23 January 2011 | ||||||||||||
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Native Language Names