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| Name: | Chou, Chaiwen |
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| Club: | Baoyu | ||
| Residence: | New York, NY | ||
| Year of birth: | 1983 | (Cat. german: W40) | |
| Date of birth: | 01.02.1983 | (Cat. internat.: W40) | |
| Nationality: | USA  |
United States | |
| RunnerID: | 676939 | ||
25 search results (25 Events, 2629.608 km). (More)
| 2025 | 1 Event, 80.467 km (More) | ||||
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| 27.09.2025 | Crested Butte 50 Mile Ultra (USA) | 50mi | |||
| 14:27:30 h | Chou, Chaiwen | *Brooklyn, NY | Overall: 57 | F: 22 | Cat W40: 5 |
| 2024 | 1 Event, 176 km (More) | ||||
| 30.08.-01.09.2024 | Ultra Trail Tour du Mont Blanc (UTMB) (FRA) | 176km | |||
| 45:15:33 h | Chou, Chaiwen | Chicken | Overall: 1542 | F: 168 | Cat W40: 32 |
| 2023 | 3 Events, 351.838 km (More) | ||||
| 25.-26.11.2023 | Formosa Trail 104Km (TPE) | 104km | |||
| 22:00:06 h | Chou, Chaiwen | Overall: 22 | F: 4 | Cat W40: 2 | |
| 22.-23.09.2023 | Grindstone 100 Mile (USA) | 100mi | |||
| 30:26:53 h | Chou, Chaiwen | Overall: 79 | F: 7 | Cat W40: 3 | |
| 24.-25.06.2023 | Manitou's Revenge Ultramarathon (USA) | 54mi | |||
| 16:48:58 h | Chou, Chaiwen | *Brooklyn, NY | Overall: 48 | F: 7 | Cat W40: 4 |
| 2022 | 3 Events, 475.087 km (More) | ||||
| 17.-21.06.2022 | Tahoe 200 Mile Endurance Run (USA) | 202mi | |||
| 3d 18:23:21 h | Chou, Chaiwen | *New York, NY | Overall: 77 | F: 15 | Cat W35: 4 |
| 14.05.2022 | Quicksilver 100 km Endurance Run (USA) | 100km | |||
| 15:13:15 h | Chou, Chaiwen | *New York, NY | Overall: 71 | F: 18 | Cat W35: 4 |
| 15.04.2022 | Desert Rats Trail Running Festival 50 Km (USA) | 50km | |||
| 6:01:08 h | Chou, Chaiwen | *New York, NY | Overall: 50 | F: 11 | Cat W35: 3 |
| 2021 | 1 Event, 160.934 km (More) | ||||
| 11.-12.09.2021 | Virgil Crest 100 Mile Ultra (USA) | 100mi | |||
| 33:40:00 h | Chou, Chaiwen | *New York, NY | Overall: 31 | F: 5 | Cat W35: 2 |
| 2020 | 2 Events, 322.013 km (More) | ||||
| 31.12.2020-01.01.2021 | Hainesport Hundred 24 Hour Endurance Run (USA) | 24h | |||
| 161.079 km | Chou, Chaiwen | *New York, NY | Overall: 4 | F: 1 | Cat W35: 1 |
| 08.02.2020 | Tarawera 100 Mile Endurance Run (NZL) | 100mi | |||
| 29:28:32 h | Chou, Chaiwen | Overall: 99 | F: 24 | Cat W35: 6 | |
| 2019 | 8 Events, 666.868 km (More) | ||||
| 08.12.2019 | Hunter S. Thompson Fear & Loathing 50 Km (USA) | 50km | |||
| 8:46:00 h | Chou, Chaiwen | *San Francisco, CA | Overall: 26 | F: 7 | Cat W35: 1 |
| 16.11.2019 | Endurance Challenge - California Trail 50 Mile (USA) | 50mi | |||
| 10:57:54 h | Chou, Chaiwen | *San Francisco, CA | Overall: 186 | F: 45 | Cat W35: 9 |
| 12.10.2019 | Ruth Anderson Ultra 50mi (USA) | 50mi | |||
| 8:30:11 h | Chou, Chaiwen | Overall: 6 | F: 2 | Cat W35: 2 | |
| 14.-15.09.2019 | Headlands Hundred 100 Mile Endurance Run (USA) | 100mi | |||
| 28:41:25 h | Chou, Chaiwen | *San Francisco, CA | Overall: 23 | F: 5 | Cat W35: 2 |
| 17.08.2019 | Squamish 50mi (CAN) | 50mi | |||
| 12:49:49 h | Chou, Chaiwen | Overall: 148 | F: 38 | Cat W35: 6 | |
| 19.05.2019 | Ohlone 50K Wilderness Run (USA) | 50km | |||
| 6:49:56 h | Chou, Chaiwen | *San Francisco, CA | Overall: 28 | F: 2 | Cat W35: 1 |
| 27.-28.04.2019 | MIUT - Madeira Island Ultra Trail 115 km (POR) | 115km | |||
| 29:09:55 h | Chou, Chaiwen | Baoyu | Overall: 489 | F: 49 | Cat W35: 13 |
| 02.03.2019 | Way Too Cool 50K Endurance Run (USA) | 50km | |||
| 5:27:44 h | Chou, Chaiwen | *San Francisco, CA | Overall: 145 | F: 25 | Cat W35: 3 |
| 2017 | 2 Events, 160.934 km (More) | ||||
| 18.11.2017 | Endurance Challenge - California Trail 50 Mile (USA) | 50mi | |||
| 10:34:31 h | Chou, Chaiwen | *San Francisco, CA | Overall: 246 | F: 61 | Cat W23: 35 |
| 13.05.2017 | Endurance Challenge - New York Trail 50 Miles (USA) | 50mi | |||
| 11:21:52 h | Chou, Chaiwen | *San Francisco, CA | Overall: 110 | F: 6 | Cat W23: 5 |
| 2016 | 2 Events, 130.467 km (More) | ||||
| 30.04.2016 | Endurance Challenge - New York Trail 50 Miles (USA) | 50mi | |||
| 12:39:12 h | Chou, Chaiwen | *New York, NY | Overall: 228 | F: 22 | Cat W23: 9 |
| 26.03.2016 | XTERRA Northeast Trail Run Series – Shepaug Run-Raiser 50K (USA) | 50km | |||
| 5:47:25 h | Chou, Chaiwen | *New York, NY | Overall: 4 | F: 1 | Cat W23: 1 |
| 2015 | 2 Events, 105 km (More) | ||||
| 18.07.2015 | Laugavegurinn 55 km, Landmannalaugar - Húsadalur (ISL) | 55km | |||
| 7:38:01 h | Chou, Chaiwen | Overall: 214 | F: 45 | Cat W23: 11 | |
| 02.05.2015 | Endurance Challenge - New York Trail 50 km (USA) | 50km | |||
| 6:45:58 h | Chou, Chaiwen | *New York, NY | Overall: 178 | F: 27 | Cat W23: 17 |
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 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2017 | 2016 | 2015 | |
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| 50mi | 8:30:11 |
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8:30:11
(60/41) |
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| 24h | 161.079 |
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161.079
(231/35) |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2017 | 2016 | 2015 | ||
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| Endurance Challenge - California Trail 50 Mile | 2 | 10:57:54 | 10:34:31 | ||||||||
| Endurance Challenge - New York Trail 50 Miles | 2 | 11:21:52 | 12:39:12 |