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Marathon Deutsche Weinstraße 2026   HaWei50 50km Ultralauf 28.2.2026   3h, 6h, 12h, 24h of Santander  
Name: Koss, Ben   Submit Personal Website Send Link 
Club:  
Residence: San Francisco, CA
Year of birth: 1980 (Cat. german: M45)
Date of birth: 20.06.1980 (Cat. internat.: M45)
Nationality: USA USA United States
RunnerID: 780844
 

20 search results (20 Events, 1549.124 km).  (More)

2023 1 Event, 50.694 km  (More)
19.08.2023 Tamalpa Headlands 50K (USA) 31.5mi
5:00:15 h Koss, Ben   Overall: 24 M: 20 Cat M40: 3
2022 1 Event, 80.467 km  (More)
09.04.2022 Lake Sonoma 50 Mile Race (USA) 50mi
7:13:27 h Koss, Ben   Overall: 2 M: 2 Cat M40: 1
2021 1 Event, 100 km  (More)
14.02.2021 Black Canyon Trail 100 Km Run (USA) 100km
8:43:04 h Koss, Ben *San Francisco, CA  Overall: 8 M: 8 Cat M40: 1
2019 4 Events, 310.934 km  (More)
16.11.2019 Endurance Challenge - California Trail 50 Mile (USA) 50mi
7:25:34 h Koss, Ben *San Francisco, CA  Overall: 15 M: 14 Cat M35: 1
04.08.2019 Skyline 50k Endurance Run (USA) 50km
4:30:07 h Koss, Ben *San Francisco, CA  Overall: 10 M: 9 Cat M35: 2
13.04.2019 Lake Sonoma 50 Mile Race (USA) 50mi
7:05:35 h Koss, Ben *San Francisco, CA  Overall: 9 M: 9 Cat M35: 1
16.02.2019 Black Canyon Trail 100 Km Run (USA) 100km
9:57:32 h Koss, Ben *San Francisco, CA  Overall: 44 M: 41 Cat M35: 11
2018 3 Events, 232.467 km  (More)
16.06.2018 The Broken Arrow Skyrace (USA) 52km
6:12:56 h Koss, Ben *San Francisco, CA  Overall: 24 M: 18 Cat M35: 2
14.04.2018 Lake Sonoma 50 Mile Race (USA) 50mi
7:02:59 h Koss, Ben *San Francisco, CA  Overall: 8 M: 8 Cat M35: 1
03.02.2018 Sean O'Brien 100 km Trail Race (USA) 100km
12:19:43 h Koss, Ben   Overall: 34 M: 26 Cat M35: 3
2017 4 Events, 360.934 km  (More)
16.12.2017 Woodside Ramble 50K - Winter (USA) 50km
3:38:37 h Koss, Ben *San Francisco, CA  Overall: 1 M: 1 Cat M35: 1
26.-27.08.2017 Cascade Crest Classic 100 Mile (USA) 100mi
22:09:00 h Koss, Ben *San Francisco, CA  Overall: 3 M: 3 Cat M35: 3
09.04.2017 Gorge Waterfalls 100k (USA) 100km
9:22:09 h Koss, Ben *San Francisco, CA  Overall: 2 M: 2 Cat M35: 1
04.03.2017 Way Too Cool 50K Endurance Run (USA) 50km
3:38:51 h Koss, Ben *San Francisco, CA  Overall: 10 M: 10 Cat M35: 2
2016 4 Events, 282.467 km  (More)
17.12.2016 Woodside Ramble 50K - Winter (USA) 50km
3:49:50 h Koss, Ben *San Francisco, CA  Overall: 5 M: 5 Cat M35: 1
03.09.2016 The Rut Mountain Runs (USA) 50km
4:19:02 h Koss, Ben *San Francisco, CA  Overall: 14 M: 14 Cat M35: 2
09.04.2016 Lake Sonoma 50 Mile Race (USA) 50mi
7:01:14 h Koss, Ben *San Francisco, CA  Overall: 7 M: 7 Cat M35: 1
06.02.2016 Tarawera 100 km Ultramarathon (NZL) 102km
9:42:37 h Koss, Ben *San Francisco, CA  Overall: 11 M: 11 Cat M35: 5
2015 2 Events, 131.161 km  (More)
05.12.2015 Endurance Challenge - California Trail 50 Mile (USA) 50mi
6:55:12 h Koss, Ben *San Francisco, CA  Overall: 14 M: 14 Cat M35: 4
29.08.2015 Tamalpa Headlands 50K (USA) 31.5mi
4:13:17 h Koss, Ben *San Francisco, CA  Overall: 11 M: 11 Cat M35: 1

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 2021 2019 2018 2017 2016 2015

Comparison table

Comparison of performances in races with multiple participations

   2023 2022 2021 2019 2018 2017 2016 2015
Lake Sonoma 50 Mile Race 4   7:13:27   7:05:35 7:02:59   7:01:14  
Tamalpa Headlands 50K 2 5:00:15             4:13:17
Black Canyon Trail 100 Km Run 2     8:43:04 9:57:32        
Woodside Ramble 50K - Winter 2           3:38:37 3:49:50  
Endurance Challenge - California Trail 50 Mile 2       7:25:34       6:55:12