John Kosters
Netherlands (NED)
September 1957 (M65)
Personal Records
| 500m | 52,23 | 19 March 2016 | Enschede (NED) |
| 1000m | 1.46,29 | 18 March 2017 | Enschede (NED) |
Season Bests
| 500m | 52,36 | 18 March 2017 | Enschede (NED) |
| 1000m | 1.46,29 | 18 March 2017 | Enschede (NED) |
| 500m | 52,23 | 19 March 2016 | Enschede (NED) |
| 1000m | 1.47,02 | 19 March 2016 | Enschede (NED) |
| 500m | 54,17 | 14 March 2015 | Enschede (NED) |
| 1000m | 1.46,81 | 14 March 2015 | Enschede (NED) |
| 500m | 53,13 | 22 March 2014 | Enschede (NED) |
| 1000m | 1.49,09 | 22 March 2014 | Enschede (NED) |
Results
| Herman Engbers | Enschede (NED) | 18 March 2017 | ||||||||
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| Herman Engbers | Enschede (NED) | 19 March 2016 | ||||||||
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| Herman Engbers Interclub Wedstrijden | Enschede (NED) | 14 March 2015 | ||||||||
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| Herman Engbers Interclub Wedstrijden | Enschede (NED) | 22 March 2014 | ||||||||
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Native Language Names