Jonathan Prosser
ID 1448748
Born : 1990 Cat. M35 Ultrarunner since 2020 USA
38
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
55
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
35,8%
Rank quotient ?This runner's calculation uses 39 eligible race(s): Σ(rank − 1) = 647; Σ finishers = 1 808. 647 / 1 808 × 100 = 35.79%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed41
Km — ultra races4 599 km
> 100 km18
> 160 km14
> 200 km6
> 24h5
> 48h2
Longest race331,5 km
5th The Sticks 72 Hour Races — 28/5/2026

Km per year (ultra races)

717
7 races
2022
863
8 races
2023
1 330
9 races
2024
768
6 races
2025
459
2 races
2026

Race types (share of distance)

Road3,2%
Trail83,9%
Stage3,3%
Elim.9,6%

Wins & podiums (ultra)

🏆 Win2
🏆 Win M2
🏅 Top 38
🏅 Top 3 M9
Longest winning streak1
Current streak0

Records

50 km4h36'04100 km14h02'4950 mi9h59'45100 mi22h07'2812 h97,62 kmBackyard24 loops

HISTORY

39 race(s)
DateRacePerf.Rk
2026
28.05 72h USA5th The Sticks 72 Hour Races 331.524 km2 🥈
18.04 Backyard Ultra USA5th The Eternal Damnation Backyard 127.414 km (19h)12
2025
01.11 50km USA10th Sanders Saunter 50k 7:05:34 h13
10.10 125mi USA26th Heartland 125 Mile Race 33:26:41 h2 🥈
03.10 140mi USA5th Hell Creek 140 Mile Race 45:52:42 h2 🥈
23.08 50km USA3rd Hell Creek 50k 6:24:22 h7
26.04 50mi USA12th Heartland 50 Mile Race 9:59:45 h12
22.03 100mi USA13th Prairie Spirit 100 Mile Trail Ultra Race 22:07:28 h15
2024
07.12 12h USA3rd Ollie's Ultra 12h 97.622 km1 🏆
01.11 100mi USA2nd Hare Mountain 100 - 100 Miles 38:01:00 h8
24.08 50km USA2nd Hell Creek 50k 7:06:39 h3 🥉
22.07 200mi USA1st The Summit 200 4d 07:24:25 h9
30.05 72h USA3rd The Sticks 72 Hour Races 251.379 km8
11.05 50mi USA4th Flower Moon 50 Mile Race 12:08:57 h8
20.04 Backyard Ultra USA3rd The Eternal Damnation Backyard 100.590 km (15h)18
06.04 50km USA25th Rockin-K Trail 50 km 6:19:46 h11
10.02 135mi USA6th Outlaw 100 Oklahoma - 135 Mile Run 47:54:44 h4
2023
04.11 50km USA8th Sanders Saunter 50k 6:13:19 h5
21.10 100mi USA13th Pumpkin Holler 100 Mile Race 26:34:23 h18
12.08 50km USA1st Hell Creek 50k 6:10:08 h3 🥉
18.06 100mi USA31st Bighorn Mountain Wild & Scenic 100 Mile Trail Run 33:09:51 h144
15.04 Backyard Ultra USA2nd The Eternal Damnation Backyard 160.944 km (24h)4
18.03 50mi USA19th Three Days of Syllamo 50 Mile Run 12:38:11 h33
17.03 50km USA19th Three Days of Syllamo 50 km Run 6:52:13 h35
17.03 150km/3stages USA19th Three Days of Syllamo Stage Race 22:32:48 h23
2022
01.10 100mi USA2nd Hell Creek 100 Mile Race 25:47:52 h1 🏆
20.08 100mi USA40th Leadville Trail 100 Mile 28:24:47 h192
10.07 50mi USA5th Last Call 50 Miler 15:26:00 h15
25.06 50km USA8th Night Hawk 50K 6:04:29 h7
23.04 Backyard Ultra USA1st The Eternal Damnation Backyard 53.648 km (8h)7
02.04 50km USA23th Rockin-K Trail 50 km 5:56:47 h9
12.02 100mi USA4th Outlaw 100 Oklahoma - 100 Mile Run 33:56:22 h6
2021
06.11 50mi USA3rd Razorback Running Revival 50M 13:24:00 h2 🥈
25.09 50km USA27th Flatrock 50K 5:26:17 h4
24.04 101km USA7th FlatRock 101K Ultra Trail Race 14:02:49 h5
20.03 50km USA1st Tallgrass Tribute 50km Race 4:36:04 h5
06.03 40mi USA2nd AlfaDog 40 Mile Race 6:08:37 h5
2020
08.11 66km USA7th Austin Rattler Run 66K 7:49:11 h17
25.01 50km USA10th Rock-On Lake Perry 50K Trail Run 5:50:49 h11