| Name: | MacKenzie-Heyboer, Mariska |
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| Club: | |||
| Residence: | Bozeman MT | ||
| Year of birth: | 1970 | (Cat. german: W55) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: W55) | |
| Nationality: | USA ![]() |
United States | |
| RunnerID: | 587332 | ||
7 search results (7 Events, 580.467 km). (More)
| 2025 | 3 Events, 350 km (More) | ||||
|---|---|---|---|---|---|
| 19.10.2025 | City to Sky 50K (USA) | 50km | |||
| 8:37:31 h | MacKenzie-Heyboer, Mariska | *Bozeman, MT | Overall: 131 | F: 51 | Cat W50: 1 |
| 13.07.2025 | Teton Mountain Runs Cody Peak 50K (USA) | 50km | |||
| 11:40:13 h | MacKenzie-Heyboer, Mariska | *Bozeman, MT | Overall: 63 | F: 14 | Cat W50: 1 |
| 06.-13.04.2025 | Marathon des Sables (MAR) | 250km/6stages | |||
| 2d 04:25:11 h | MacKenzie-Heyboer, Mariska | Overall: 583 | F: 93 | Cat W50: 15 | |
| 2015 | 2 Events, 100 km (More) | ||||
| 05.09.2015 | The Rut Mountain Runs (USA) | 50km | |||
| 11:18:12 h | MacKenzie-Heyboer, Mariska | *Bozeman, MT | Overall: 284 | F: 64 | Cat W40: 7 |
| 20.06.2015 | Old Gabe 50K (USA) | 50km | |||
| 10:53:14 h | MacKenzie-Heyboer, Mariska | *Bozeman, MT | Overall: 31 | F: 6 | Cat W40: 2 |
| 2014 | 1 Event, 80.467 km (More) | ||||
| 20.-21.09.2014 | Yellowstone-Teton 50 Mile Endurance Run (USA) | 50mi | |||
| 10:39:00 h | MacKenzie-Heyboer, Mariska | *Bozeman, MT | Overall: 10 | F: 2 | Cat W40: 2 |
| 2013 | 1 Event, 50 km (More) | ||||
| 14.09.2013 | The Rut Mountain Runs (USA) | 50km | |||
| 10:02:01 h | MacKenzie-Heyboer, Mariska | *Bozeman MT | Overall: 138 | F: 30 | Cat W40: 4 |
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 | 2025 | 2015 | 2014 | 2013 |
|---|
Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2015 | 2014 | 2013 | ||
|---|---|---|---|---|---|
| The Rut Mountain Runs | 2 | 11:18:12 | 10:02:01 |





