Paul Nielsen
Born : 1961 Cat. M65 Ultrarunner since 2017 USA
50
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
80
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
52,1%
Rank quotient ?This runner's calculation uses 52 eligible race(s): Σ(rank − 1) = 3 228; Σ finishers = 6 201. 3 228 / 6 201 × 100 = 52.06%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed52
Km — ultra races8 025 km
> 100 km33
> 160 km33
> 200 km9
> 24h16
> 48h5
Longest race383,0 km

Km per year (ultra races)

1 083
7 races
2022
1 944
11 races
2023
764
5 races
2024
916
5 races
2025
731
6 races
2026

Race types (share of distance)

Road12,0%
Trail52,9%
Elim.35,1%

Wins & podiums (ultra)

🏆 Win5
🏆 Win M5
🏅 Top 38
🏅 Top 3 M10
Longest winning streak1
Current streak0

HISTORY

52 race(s)
DateRacePerf.Rk
2026
12.09 100mi USA15th Mogollon Monster 100 Mile 36:44:54 h124
03.09 92h USA12th A Race for the Ages 183.465 km25
11.07 50mi USA19th Leadville Silver Rush 50 Mile Run 10:09:54 h153
16.05 Backyard Ultra USA7th Sky Pilots Ouray Backyard Ultra 187.768 km (28h)2 🥈
11.04 12h USA6th Run the Ranch 12 Hour Race 50.694 km11
28.03 8h USA7th Vernal Equinox 8 Hour Race 67.592 km5
2025
31.12 36h USA41st Across the Years, Last Person Standing 165.730 km7
04.10 Backyard Ultra USA5th Little Dog’s Backyard Ultra 187.768 km (28h)4
28.08 92h USA11th A Race for the Ages 217.261 km24
18.07 102mi USA12th Ouray 100 Mile Endurance Run 2d 03:31:43 h79
17.05 Backyard Ultra USA6th Sky Pilots Ouray Backyard Ultra 181.062 km (27h)1 🏆
2024
28.12 72h USA41th Across the Years, 72h 233.501 km20
09.11 Backyard Ultra USA3rd Empower Backyard Ultra 187.768 km (28h)4
12.10 55km USA11th Canyon De Chelly Ultra 7:57:20 h47
11.02 60.2km USA11th Black Canyon Trail 60 km Run 10:23:14 h301
20.01 36h USA1st The Conquer 228.004 km4
2023
28.12 72h USA39th Across the Years, 72h 328.714 km5
18.11 Backyard Ultra USA3rd Backyard Ultra – Summit Trail Racing 221.298 km (33h)7
21.10 Backyard Ultra USA2nd Empower Backyard Ultra 268.240 km (40h)1 🏆
30.09 100mi USA1st Rio Grande 100 34:34:56 h8
16.09 51mi USA10th Ouray 50 Mile Endurance Run 22:37:25 h17
26.08 100mi USA2nd Creede 100 38:22:43 h19
01.07 Backyard Ultra USA1st The Crooked Mile - The Sundance LMS 67.060 km (10h)1 🏆
03.06 Backyard Ultra USA1st The Crooked Mile – State 48 Runners LMS 160.944 km (24h)3 🥉
20.05 Backyard Ultra USA4th Sky Pilots Ouray Backyard Ultra 187.768 km (28h)1 🏆
15.01 50mi USA14th Big Bend 50 - Borderland 50M 9:29:16 h7
01.01 33:30h USA38th Across the Years, Last Person Standing 225.935 km1 🏆
2022
22.10 Backyard Ultra USA2nd Babbitt’s Backyard Ultra 181.062 km (27h)3 🥉
27.08 100mi USA1st Creede 100 37:01:49 h10
20.08 100mi USA40th Leadville Trail 100 Mile 29:11:48 h259
22.07 102mi USA9th Ouray 100 Mile Endurance Run 2d 03:23:12 h50
14.05 Backyard Ultra USA3rd Sky Pilots Ouray Backyard Ultra 174.356 km (26h)4
29.01 100mi USA8th Florida Skydive Ultra Run - 100 Miles 26:24:00 h5
16.01 50mi USA13th Big Bend 50 - Borderland 50M 9:52:44 h10
2021
17.09 100mi USA15th Run Rabbit Run 100 Mile UltraMarathon - Tortoises Run 34:29:32 h137
30.07 102mi USA8th Ouray 100 Mile Endurance Run 2d 00:47:52 h28
05.06 101mi USA1st Mace's Hideout 100 Mile Race 35:23:37 h13
17.04 50km USA18th Desert Rats Trail Running Festival 50 km 5:35:54 h68
14.02 100km USA8th Black Canyon Trail 100 km Run 13:20:37 h141
2020
09.10 238mi USA4th Moab 240 Endurance Run 3d 22:20:30 h38
15.08 50mi USA9th Quad Rock 50 Mile 13:27:41 h30
25.07 100km USA6th Never Summer 100k 19:57:27 h154
19.01 50mi USA11th Big Bend 50 - Borderland 50M 9:38:35 h5
04.01 32:15h USA35th Across The Years, Last Person Standing 195.601 km4
2019
11.10 238mi USA3rd Moab 240 Endurance Run 4d 13:22:48 h82
17.08 100mi USA37th Leadville Trail 100 Mile 29:16:45 h254
19.07 12h USA6th Chase the Moon 12 Hour Endurance Run 82.881 km9
06.07 50mi USA12th Leadville Silver Rush 50 Mile Run 10:09:54 h151
2018
18.08 100mi USA36th Leadville Trail 100 Mile 29:52:53 h364
08.07 50mi USA11th Leadville Silver Rush 50 Mile Run 11:43:34 h181
12.05 50mi USA7th Quad Rock 50 Mile 13:48:49 h138
2017
09.07 50mi USA10th Leadville Silver Rush 50 Mile Run 13:10:53 h261