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| Name: | Koonstra, Lambert |
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| Club: | |||
| Residence: | Arnhem | ||
| Year of birth: | 1976 | (Cat. german: M50) | |
| Date of birth: | 14.11.1976 | (Cat. internat.: M45) | |
| Nationality: | NED  |
Netherlands | |
| RunnerID: | 405850 | ||
5 search results (4 Events, 256 km). (More)
| 2023 | 1 Event, 50 km (More) | ||||
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| 11.03.2023 | SallandTrail 50 km (NED) | 50km | |||
| 5:47:43 h | Koonstra, Lambert | *Arnhem | Overall: 171 | M: 147 | Cat M45: 35 |
| 2022 | 1 Event, 90 km (More) | ||||
| 28.08.2022 | Comrades Marathon - Down Run (RSA) | 90km | |||
| 11:34:17 h | Koonstra, Lambert | Overall: 9788 | M: 7883 | Cat M45: 1412 | |
| 2017 | 1 Event, 60 km (More) | ||||
| 17.04.2017 | De Zestig van Texel (NED) | 60km | |||
| 6:34:48 h | Koonstra, Lambert | *Arnhem | Overall: 274 | M: 237 | Cat M40: 44 |
| 2013 | 1 Event, 56 km (More) | ||||
| 30.03.2013 | Two Oceans Marathon - 50km Split (RSA) | 50km | |||
| 5:12:33 h | Koonstra, Lambert | Overall: 3786 | M: 3127 | Cat M35: 657 | |
| 30.03.2013 | Two Oceans Marathon (RSA) | 56km | |||
| 5:48:46 h | Koonstra, Lambert | Overall: 3652 | M: 2994 | Cat M35: 628 | |
Personal bests
Your list of personal best performances only contains performances of races which can be included into rankings.
In brackets rank in yearly international/national rankings.
| PB | 2023 | 2022 | 2017 | 2013 | |
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| 50km | 5:12:33 |
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5:12:33
(7610/125) |