Amy Gross
ID 864856
Born : 1985 Cat. W40 Ultrarunner since 2016 USA
25
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
37
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
60,0%
Rank quotient ?This runner's calculation uses 25 eligible race(s): Σ(rank − 1) = 1 541; Σ finishers = 2 570. 1 541 / 2 570 × 100 = 59.96%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed25
Km — ultra races1 725 km
> 100 km3
> 160 km3
Longest race160,9 km
15th Idaho Mountain Trail Ultra Festival (IMTUF 100) — 19/9/2026

Km per year (ultra races)

165
3 races
2022
261
3 races
2023
311
4 races
2024
55
1 race
2025
372
5 races
2026

Race types (share of distance)

Road3,3%
Trail96,7%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F1
🏅 Top 30
🏅 Top 3 F2
Longest winning streak0
Current streak0

Records

50 km5h54'00100 km19h06'5450 mi13h15'51100 mi33h58'4812 h56,33 km

HISTORY

25 race(s)
DateRacePerf.Rk
2026
19.09 100mi USA15th Idaho Mountain Trail Ultra Festival (IMTUF 100) 33:58:48 h79
20.06 55km USA13th River of No Return Endurance Run 53K 9:23:59 h73
25.04 50km USA17th Weiser River Trail 5:54:00 h47
21.03 12h USA15th Pulse Endurance Runs (Pickled Feet) 12 Hour 56.327 km28
24.01 50km USA12th Wilson Creek Frozen 50K 6:44:50 h29
2025
12.07 55km USA12th Beaverhead 55K Endurance Run 10:25:00 h145
2024
21.09 100mi USA13th Idaho Mountain Trail Ultra Festival (IMTUF 100) 34:18:39 h100
20.07 50km USA6th Palisades Ultra Trail Series (PUTS) - Big Elk 50k 8:27:20 h33
08.06 50km USA11th Scout Mountain 50 km Ultra Trail 9:13:26 h45
17.02 50km USA4th Fragrance Lake 50km Race 7:11:25 h17
2023
16.09 100mi USA12th Idaho Mountain Trail Ultra Festival (IMTUF 100) 35:01:43 h95
15.07 50km USA10th McCall Trailrunning Classic 50 km 9:56:07 h6
03.06 50km USA10th Scout Mountain 50 km Ultra Trail 9:21:26 h58
2022
23.07 60km USA10th Standhope Ultra Challenge 14:39:58 h79
23.04 50km USA6th Tillamook Burn Trail Run 50 km 7:36:41 h90
26.03 55km USA1st Owyhee Off-Road 55 km Challenge 7:42:28 h16
2021
17.07 50km USA5th Backcountry Rise 50 km Race 8:43:46 h101
19.06 50mi USA4th Old Cascadia 50 Mile Race 15:12:33 h63
17.04 50km USA7th Spitfire Ultra Trail Challenge 8:31:42 h23
2020
11.07 100km USA7th Beaverhead 100K Endurance Run 19:06:54 h104
13.06 50mi USA24th Snow Peaks 50 Mile Trail Run 13:15:51 h100
18.01 50km USA8th Wilson Creek Frozen 50K 7:08:06 h55
2019
05.10 50km USA1st Bogus 50 km Race 6:39:14 h22
2018
06.10 50km USA8th Foothills 50K Frenzy 7:29:58 h100
2016
01.10 50km USA6th Foothills 50K Frenzy 6:56:19 h58