Silke Koester
ID 63753
Born : 1982 Cat. W40 Ultrarunner since 2008 USA
50
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
53
DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details
3
Countries visited ?FRAFranceGERGermanyUSAUnited States
16,8%
Rank quotient ?This runner's calculation uses 55 eligible race(s): Σ(rank − 1) = 1 908; Σ finishers = 11 337. 1 908 / 11 337 × 100 = 16.83%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed62
Km — ultra races5 209 km
> 100 km14
> 160 km14
> 200 km1
Longest race293,0 km
10. Goretex TransAlpine-Run — 30/8/2014

Km per year (ultra races)

322
2 races
2022
261
2 races
2023
161
1 race
2024
291
3 races
2025
452
4 races
2026

Race types (share of distance)

Trail94,4%
Stage5,6%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F6
🏅 Top 30
🏅 Top 3 F19
Longest winning streak0
Current streak0

Records

50 km5h10'41100 km11h01'4450 mi8h53'26100 mi22h16'47

HISTORY

55 race(s)
DateRacePerf.Rk
2026
22.08 100mi USA44th Leadville Trail 100 Mile 22:16:47 h31
17.07 100mi USA10th High Lonesome 100 Mile 26:10:28 h16
09.05 50mi USA15th Quad Rock 50 Mile 10:46:28 h28
21.03 50km USA32nd Chuckanut 50K 5:24:02 h146
2025
06.09 50km USA12th Devil on the Divide Ultra 6:12:05 h30
18.07 100mi USA9th High Lonesome 100 Mile 26:26:51 h19
10.05 50mi USA14th Quad Rock 50 Mile 10:32:01 h23
2024
19.07 100mi USA8th High Lonesome 100 Mile 27:36:19 h20
2023
21.07 100mi USA7th High Lonesome 100 Mile 27:48:15 h11
06.05 100km USA26th Miwok 100k Trail Race 12:00:00 h53
2022
26.08 100mi USA2nd Divide 100 Mile Race 38:30:01 h4
22.07 100mi USA6th High Lonesome 100 Mile 27:13:58 h11
2021
30.07 100mi USA5th High Lonesome 100 Mile 26:41:22 h9
26.06 50mi USA27th San Juan Solstice 50 Mile Run 11:20:06 h44
2019
26.07 100mi USA3rd High Lonesome 100 Mile 25:28:20 h6
2018
28.07 100km USA4th Never Summer 100k 17:20:51 h64
2016
26.08 170km FRA14ème Ultra Trail Tour du Mont Blanc 33:00:21 h147
17.06 100mi USA24th Bighorn Mountain Wild & Scenic 100 Mile Trail Run 23:10:54 h17
04.06 50km USA8th Golden Gate Dirty 30 6:29:40 h61
30.04 50mi USA9th Endurance Challenge - New York Trail 50 Miles 8:53:26 h33
02.04 100km USA6th Gorge Waterfalls 100k 11:52:33 h32
2015
01.08 50mi USA1st Pikes Peak Ultra 10:16:19 h6
19.06 100mi USA23th Bighorn Mountain Wild & Scenic 100 Mile Trail Run 24:13:30 h19
30.05 50km USA7th Golden Gate Dirty 30 5:54:03 h42
28.03 50mi USA2nd Behind the Rocks 50 Mile Race 9:22:00 h6
07.02 100km USA2nd Sean O'Brien 100 km Trail Race 11:11:58 h19
2014
30.08 293km/8stages GER10. Goretex TransAlpine-Run 36:45:26 h105
28.06 100mi USA41st Western States 100 Mile Endurance Run 23:06:02 h93
31.05 50km USA6th Golden Gate Dirty 30 6:29:32 h36
10.05 50mi USA3rd Quad Rock 50 Mile 9:59:09 h29
26.04 50km USA25th Zane Grey Highline Trail 50 km 6:55:43 h25
11.01 100km trail race USA14th Bandera 100 km Ultratrail - Open race 11:01:44 h17
11.01 100km trail race USA14th Bandera 100 km Ultratrail - US Trail Championships 11:01:44 h14
2013
02.11 50mi USA31st Mountain Masochist 50 Mile Trail Run 9:14:38 h44
04.08 50km USA1st Power of Four Trail Run 5:52:56 h9
27.07 50km USA6th Speedgoat 50k 6:52:16 h46
22.06 50mi USA19th San Juan Solstice 50 Mile Run 10:36:26 h17
01.06 50km USA5th Golden Gate Dirty 30 5:38:19 h28
16.02 55km USA7th Moab Red Hot 55k 5:29:06 h60
2012
15.09 50mi USA6th Run Rabbit Run 50 Mile UltraMarathon 9:09:28 h10
28.07 50km USA5th Speedgoat 50k 7:31:59 h52
30.06 50km USA3rd North Fork 50 km Trail Race 5:10:41 h8
02.06 50km USA4th Golden Gate Dirty 30 6:08:34 h38
2011
06.08 50km USA7th HURL Elkhorn 50 km Endurance Run 5:53:21 h8
2010
04.12 50mi USA4th Endurance Challenge - California Trail 50 Mile 10:25:05 h83
06.11 50mi USA28th Mountain Masochist 50 Mile Trail Run 9:21:20 h34
26.09 50km USA17th Vermont 50 km Ultra Run 5:20:16 h26
05.06 50mi USA3rd Endurance Challenge - Washington D.C. Trail 50 Miles 9:25:14 h35
08.05 50mi USA3rd Endurance Challenge - New York Trail 50 Miles 11:22:02 h50
06.03 50km USA6th Seneca Creek Greenway Trail 50k 5:14:14 h26
2009
07.11 50mi USA27th Mountain Masochist 50 Mile Trail Run 9:51:51 h66
25.07 52.5km USA9th Damn Wakely Dam Ultra 7:10:33 h17
09.05 50km USA2nd Endurance Challenge - New York Trail 50km 6:22:29 h32
2008
06.12 50km USA2nd Endurance Challenge - California Trail 50 km 6:44:36 h36
10.05 50km USA1st Endurance Challenge - Washington Trail 50 km 7:16:22 h22