Zach Pierce
ID 64645
Born : 1973 Cat. M50 Ultrarunner since 2007 USA
50
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
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
1
Countries visited ?USAUnited States
48,8%
Rank quotient ?This runner's calculation uses 55 eligible race(s): Σ(rank − 1) = 3 852; Σ finishers = 7 898. 3 852 / 7 898 × 100 = 48.77%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed55
Km — ultra races3 934 km
> 100 km6
> 160 km6
> 24h2
Longest race160,9 km
28th Superior Fall Trail Races 100 Mile — 7/9/2018

Km per year (ultra races)

80
1 race
2022
2023
2024
2025
2026

Race types (share of distance)

Road4,1%
Trail95,9%

Records

50 km5h35'49100 km16h15'0050 mi9h49'24100 mi29h28'3924 h81,92 km

HISTORY

55 race(s)
DateRacePerf.Rk
2022
30.07 50mi USA41th Minnesota Voyageur Trail 50 Mile Ultra 11:59:31 h84
2021
20.05 50km USA19th Superior Spring 50 km Trail Race 8:26:29 h119
2019
18.05 50km USA17th Superior Spring 50 km Trail Race 7:38:45 h159
2018
20.10 50km USA10th Wild Duluth 50 km Races 7:48:32 h106
07.09 100mi USA28th Superior Fall Trail Races 100 Mile 34:36:08 h116
07.07 50km USA25th Afton Trail Run 50K 6:05:01 h99
19.05 50km USA16th Superior Spring 50 km Trail Race 6:08:58 h81
2017
21.10 50km USA9th Wild Duluth 50 km Races 7:44:59 h69
29.07 50mi USA36th Minnesota Voyageur Trail 50 Mile Ultra 12:06:15 h180
01.07 50km USA24th Afton Trail Run 50K 5:46:11 h99
20.05 50km USA15th Superior Spring 50 km Trail Race 6:28:37 h102
29.04 50km USA10th Chippewa Moraine 50km Ultra Marathon 6:15:08 h70
2016
09.09 100mi USA26th Superior Fall Trail Races 100 Mile 37:23:29 h127
30.07 50mi USA35th Minnesota Voyageur Trail 50 Mile Ultra 11:48:24 h170
21.05 50km USA14th Superior Spring 50 km Trail Race 6:43:41 h73
23.04 50km USA9th Chippewa Moraine 50km Ultra Marathon 6:11:34 h54
2015
07.11 8h USA2nd Icebox 480 - 8 Hour Run 59.545 km36
17.10 50km USA7th Wild Duluth 50 km Races 7:32:35 h54
25.07 50mi USA34th Minnesota Voyageur Trail 50 Mile Ultra 12:32:51 h152
06.06 24h USA26th FANS 24 Hour Runs 81.915 km67
16.05 50km USA13th Superior Spring 50 km Trail Race 7:06:14 h104
25.04 50km USA8th Chippewa Moraine 50km Ultra Marathon 5:58:38 h53
2014
18.10 50km USA6th Wild Duluth 50 km Races 7:32:37 h71
05.07 50km USA21st Afton Trail Run 50K 6:06:05 h76
17.05 50km USA12th Superior Spring 50 km Trail Race 6:53:06 h95
26.04 50km USA7th Chippewa Moraine 50km Ultra Marathon 5:44:51 h49
2013
19.10 50km USA5th Wild Duluth 50 km Races 7:30:43 h62
06.07 50km USA20th Afton Trail Run 50K 6:16:59 h95
18.05 50km USA11th Superior Spring 50 km Trail Race 6:24:41 h76
2012
20.10 50km USA4th Wild Duluth 50 km Races 7:35:15 h57
28.04 50km USA5th Chippewa Moraine 50km Ultra Marathon 5:35:49 h60
2011
03.12 50km USA5th Endurance Challenge - California Trail 50 km 6:36:22 h146
29.10 50km USA4th Surf the Murph 50 km Run 5:49:00 h11
09.09 100mi USA21th Superior Fall Trail Races 100 Mile 36:10:35 h42
21.05 50km USA9th Superior Spring 50 km Trail Race 6:10:21 h41
30.04 50mi USA8th Capitol Peak 50 Miler 10:37:16 h56
2010
30.10 50mi USA3rd Surf the Murph 50 Mile Run 10:51:00 h16
16.10 100km USA2nd Wild Duluth 100 km Races 16:15:00 h12
03.07 50km USA17th Afton Trail Run 50K 6:24:09 h46
15.05 50km USA8th Superior Spring 50 km Trail Race 6:30:27 h69
08.05 50mi USA29th Ice Age Trail 50 Mile Run 10:26:54 h105
08.04 100mi USA2nd Zumbro 100 Mile 30:07:56 h10
2009
11.09 100mi USA19th Superior Fall Trail Races 100 Mile 35:45:45 h25
22.08 50mi USA5th Lean Horse Ultra-Marathon 50 Mile 10:54:09 h19
25.07 50mi USA28th Minnesota Voyageur Trail 50 Mile Ultra 9:49:24 h26
04.07 50km USA16th Afton Trail Run 50K 5:36:39 h43
06.06 24h USA20th FANS 24 Hour Runs 80.612 km73
16.05 50km USA7th Superior Spring 50 km Trail Race 5:55:29 h27
10.04 100mi USA1st Zumbro 100 Mile 29:28:39 h8
2008
05.09 50mi USA18th Superior Fall Trail Races 50 Mile 14:17:44 h18
26.07 50mi USA27th Minnesota Voyageur Trail 50 Mile Ultra 10:47:23 h45
05.07 50km USA15th Afton Trail Run 50K 6:17:34 h77
10.05 50mi USA27th Ice Age Trail 50 Mile Run 10:19:44 h97
12.04 50km USA1st Chippewa Moraine 50km Ultra Marathon 6:40:35 h48
2007
07.09 50mi USA17th Superior Fall Trail Races 50 Mile 13:42:53 h32