Timothy Sieh
ID 217251
Born : 1960 Cat. M65 Ultrarunner since 2011 USA
39
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
45
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
2
Countries visited ?IRLIrelandUSAUnited States
35,5%
Rank quotient ?This runner's calculation uses 39 eligible race(s): Σ(rank − 1) = 1 740; Σ finishers = 4 905. 1 740 / 4 905 × 100 = 35.47%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed39
Km — ultra races2 796 km
> 100 km3
> 160 km3
Longest race160,9 km
13th Lean Horse Ultra-Marathon 100 Mile — 18/8/2017

Km per year (ultra races)

80
1 race
2022
125
2 races
2023
180
3 races
2024
50
1 race
2025
2026

Race types (share of distance)

Road2,3%
Trail95,3%
Elim.2,4%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M2
Longest winning streak0
Current streak0

Records

50 km4h37'2150 mi10h09'21100 mi22h31'26Backyard10 loops

HISTORY

39 race(s)
DateRacePerf.Rk
2025
17.05 50km USA23rd Superior Spring 50 km Trail Race 6:59:20 h134
2024
31.08 50km USA3rd Midwest States 50 7:56:28 h17
18.05 50km USA22nd Superior Spring 50 km Trail Race 7:07:12 h111
13.04 50mi USA16th Zumbro Midnight 50 Mile Trail Race 12:58:39 h38
2023
30.09 45km USA11th Hungerford Trail Race 28.3 Mile 4:44:25 h6
08.04 50mi USA15th Zumbro Midnight 50 Mile Trail Race 14:56:16 h45
2022
14.05 50mi USA41th Ice Age Trail 50 Mile Run 11:49:26 h139
2021
05.06 Backyard Ultra USA4th Last Runner Standing Run 67.060 km (10h)13
08.04 34mi USA13th Zumbro 34 Mile Endurance Run 7:51:34 h53
2019
27.07 50mi USA38th Minnesota Voyageur Trail 50 Mile Ultra 10:53:40 h73
18.05 50km USA17th Superior Spring 50 km Trail Race 6:15:30 h67
2018
19.05 50km USA16th Superior Spring 50 km Trail Race 5:59:06 h70
14.04 50mi USA10th Zumbro Midnight 50 Mile Trail Race 14:05:18 h29
2017
18.08 100mi USA13th Lean Horse Ultra-Marathon 100 Mile 22:31:26 h6
29.07 50mi USA36th Minnesota Voyageur Trail 50 Mile Ultra 11:42:12 h148
20.05 50km USA15th Superior Spring 50 km Trail Race 5:32:09 h44
23.04 63.5km IRL14th Connemara Int. Ultramarathon 5:46:41 h31
08.04 50mi USA9th Zumbro Midnight 50 Mile Trail Race 11:04:37 h22
2016
12.11 50km USA7th Norris Dam Hard Trail Race 50K 6:03:01 h4
22.10 50km USA9th Surf the Murph 50 km Run 5:30:02 h11
09.04 50mi USA8th Zumbro 50 Mile 10:48:02 h20
2015
07.11 8h USA2nd Icebox 480 - 8 Hour Run 45.061 km79
11.09 100mi USA25th Superior Fall Trail Races 100 Mile 32:11:50 h60
25.07 50mi USA34th Minnesota Voyageur Trail 50 Mile Ultra 10:16:37 h50
06.06 50km USA5th Chester Woods 50K Trail Run 4:37:21 h10
16.05 50km USA13th Superior Spring 50 km Trail Race 5:39:32 h33
11.04 50mi USA7th Zumbro 50 Mile 10:54:57 h16
2014
16.11 50km USA5th Malibu Canyon 50 km Trail Run 5:43:01 h9
25.10 50km USA7th Surf the Murph 50 km Run 5:13:14 h3 🥉
26.07 50mi USA33rd Minnesota Voyageur Trail 50 Mile Ultra 10:52:46 h82
2013
06.09 100mi USA23th Superior Fall Trail Races 100 Mile 36:31:51 h65
27.07 50mi USA32nd Minnesota Voyageur Trail 50 Mile Ultra 10:42:12 h62
13.04 50mi USA5th Zumbro 50 Mile 12:39:18 h12
2012
20.10 50km USA4th Wild Duluth 50 km Races 8:05:22 h69
07.09 50mi USA22th Superior Fall Trail Races 50 Mile 11:14:40 h14
28.07 50mi USA31st Minnesota Voyageur Trail 50 Mile Ultra 10:09:21 h25
19.05 50km USA10th Superior Spring 50 km Trail Race 5:42:30 h36
2011
15.10 50km USA3rd Wild Duluth 50 km Races 6:33:03 h34
30.07 50mi USA30th Minnesota Voyageur Trail 50 Mile Ultra 10:32:42 h39