Select your language:
Marathon Deutsche Weinstraße 2026   HaWei50 50km Ultralauf 28.2.2026   3h, 6h, 12h, 24h of Santander  
Name: Kosbie, Jeffrey   Submit Personal Website Send Link 
Club:  
Residence: Oakland, CA
Year of birth: 1984 (Cat. german: M40)
Date of birth: 00.00.0000 (Cat. internat.: M40)
Nationality: USA USA United States
RunnerID: 859316
 

22 search results (22 Events, 2549.011 km).  (More)

2025 1 Event, 100 km  (More)
18.10.2025 Lake Sonoma 100K & 50K (USA) 100km
18:21:24 h Kosbie, Jeffrey *Dublin, CA  Overall: 193 M: 153 Cat M40: 34
2024 1 Event, 160.934 km  (More)
02.-03.11.2024 Rio Del Lago 100 Mile Endurance Run (USA) 100mi
29:16:52 h Kosbie, Jeffrey *Dublin, CA  Overall: 186 M: 136 Cat M35: 22
2023 1 Event, 100 km  (More)
06.05.2023 Miwok 100k Trail Race (USA) 100km
14:59:00 h Kosbie, Jeffrey   Overall: 241 M: 156 Cat M35: 28
2022 3 Events, 531.524 km  (More)
12.-13.08.2022 Bigfoot 200 Endurance Run (USA) 206mi
4d 08:35:35 h Kosbie, Jeffrey *Chico, CA  Overall: 118 M: 94 Cat M35: 16
14.05.2022 Quicksilver 100 km Endurance Run (USA) 100km
16:39:57 h Kosbie, Jeffrey *Chico, CA  Overall: 108 M: 84 Cat M35: 16
23.04.2022 The Canyons Endurance 100 Km Run (USA) 100km
18:24:42 h Kosbie, Jeffrey *Chico, CA  Overall: 388 M: 303 Cat M35: 51
2021 1 Event, 160.934 km  (More)
17.-18.07.2021 Tahoe Rim Trail 100M Endurance Run (USA) 100mi
35:42:49 h Kosbie, Jeffrey *Oakland, CA  Overall: 98 M: 79 Cat M35: 10
2019 6 Events, 638.021 km  (More)
13.-15.09.2019 Tahoe 200 Mile Endurance Run (USA) 202mi
3d 23:47:05 h Kosbie, Jeffrey *Oakland, CA  Overall: 114 M: 98 Cat M23: 23
20.-21.07.2019 Tahoe Rim Trail 50M Endurance Run (USA) 50mi
15:39:00 h Kosbie, Jeffrey *Oakland, CA  Overall: 146 M: 102 Cat M23: 32
19.05.2019 Ohlone 50K Wilderness Run (USA) 50km
8:39:05 h Kosbie, Jeffrey *Richmond, CA  Overall: 75 M: 61 Cat M23: 7
13.04.2019 Diablo Trails Challenge (USA) 50km
8:21:23 h Kosbie, Jeffrey *Richmond, CA  Overall: 84 M: 67 Cat M23: 16
09.03.2019 Marin Ultra Challenge 50 Mile Race (USA) 50mi
11:24:54 h Kosbie, Jeffrey *Richmond, CA  Overall: 104 M: 83 Cat M23: 24
23.02.2019 Mount Umunhum Trail Run (USA) 52km
8:11:19 h Kosbie, Jeffrey *Richmond, CA  Overall: 41 M: 33 Cat M23: 8
2018 3 Events, 291.401 km  (More)
21.-22.07.2018 Tahoe Rim Trail 100M Endurance Run (USA) 100mi
32:14:48 h Kosbie, Jeffrey *Oakland, CA  Overall: 94 M: 83 Cat M23: 25
02.06.2018 Bishop High Sierra Ultramarathons 50 Miles (USA) 50mi
13:52:03 h Kosbie, Jeffrey *Oakland, CA  Overall: 34 M: 23 Cat M23: 7
03.03.2018 Way Too Cool 50K Endurance Run (USA) 50km
5:58:41 h Kosbie, Jeffrey *Oakland, CA  Overall: 222 M: 172 Cat M23: 50
2017 4 Events, 431.868 km  (More)
04.-05.11.2017 Rio Del Lago 100 Mile Endurance Run (USA) 100mi
28:59:50 h Kosbie, Jeffrey *Oakland, CA  Overall: 240 M: 189 Cat M23: 36
07.10.2017 Dick Collins Firetrails 50 Mile (USA) 50mi
13:09:38 h Kosbie, Jeffrey *Oakland, CA  Overall: 40 M: 27 Cat M23: 7
16.-17.09.2017 Folsom Lake Ultra Trail (USA) 110km
19:54:34 h Kosbie, Jeffrey *Oakland, CA  Overall: 27 M: 20 Cat M23: 9
20.05.2017 San Francisco 50 Mile Endurance Run (USA) 50mi
12:57:22 h Kosbie, Jeffrey *Oakland, CA  Overall: 32 M: 24 Cat M23: 6
2016 2 Events, 134.329 km  (More)
18.09.2016 Coastal 50 km Trail Run (USA) 50km
8:20:35 h Kosbie, Jeffrey *Oakland, CA  Overall: 47 M: 30 Cat M23: 12
30.-31.07.2016 The San Francisco Ultramarathon (USA) 52.4mi
10:41:26 h Kosbie, Jeffrey   Overall: 28 M: 21 Cat M23: 9

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 2019 2018 2017 2016

Comparison table

Comparison of performances in races with multiple participations

   2025 2024 2023 2022 2021 2019 2018 2017 2016
Rio Del Lago 100 Mile Endurance Run 2   29:16:52           28:59:50  
Tahoe Rim Trail 100M Endurance Run 2         35:42:49   32:14:48