John Mahoney
ID 1682845
Born : 1984 Cat. M40 Ultrarunner since 2021 USA
10
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
32
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
27,7%
Rank quotient ?This runner's calculation uses 10 eligible race(s): Σ(rank − 1) = 670; Σ finishers = 2 422. 670 / 2 422 × 100 = 27.66%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed10
Km — ultra races1 178 km
> 100 km4
> 160 km4
> 200 km1
Longest race331,5 km
12th Bigfoot 200 Endurance Run — 7/8/2026

Km per year (ultra races)

80
1 race
2022
209
2 races
2023
161
1 race
2024
261
3 races
2025
412
2 races
2026

Race types (share of distance)

Trail100,0%

Records

50 mi11h46'52100 mi26h27'46

HISTORY

10 race(s)
DateRacePerf.Rk
2026
07.08 206mi USA12th Bigfoot 200 Endurance Run 2d 11:52:46 h4
20.06 50mi USA32nd San Juan Solstice 50 Mile Run 11:46:52 h52
2025
09.05 100mi USA7th The Hellbender One Hundred 26:27:46 h30
12.04 48km USA22nd Desert Rats Trail Running Festival 50 km 5:49:21 h76
09.02 52km USA12th Black Canyon Trail 50 km Run 5:29:08 h103
2024
26.07 100mi USA3rd Crazy Mountain 100 28:49:34 h31
2023
18.06 100mi USA31st Bighorn Mountain Wild & Scenic 100 Mile Trail Run 30:28:33 h80
15.04 48km USA20th Desert Rats Trail Running Festival 50 km 6:07:33 h114
2022
25.06 50mi USA28th San Juan Solstice 50 Mile Run 13:03:50 h106
2021
07.08 55km USA6th Silverton Ultra Dirty - 55K 15:03:44 h84