Thomas Grinovich
ID 261390
Born : 1971 Cat. M55 Ultrarunner since 2010 USA
45
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
69
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
44,3%
Rank quotient ?This runner's calculation uses 45 eligible race(s): Σ(rank − 1) = 1 147; Σ finishers = 2 589. 1 147 / 2 589 × 100 = 44.30%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed46
Km — ultra races6 111 km
> 100 km25
> 160 km25
> 200 km3
Longest race524,6 km
1st The Last Annual Heart of the South Road Race — 18/6/2020

Km per year (ultra races)

161
1 race
2022
241
2 races
2023
161
1 race
2024
241
2 races
2025
161
1 race
2026

Race types (share of distance)

Road21,1%
Trail76,0%
Stage2,9%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 36
🏅 Top 3 M6
Longest winning streak1
Current streak0

Records

50 km4h54'5050 mi9h27'27100 mi22h25'256 h49,25 km12 h97,08 km

HISTORY

45 race(s)
DateRacePerf.Rk
2026
17.01 100mi USA16th Long Haul 100 Mile Ultra-Marathons 26:12:07 h76
2025
01.11 50mi USA12th Azalea 50 Mile Race 10:44:44 h7
18.01 100mi USA15th Long Haul 100 Mile Ultra-Marathons 31:38:40 h149
2024
13.01 100mi USA14th Long Haul 100 Mile Ultra-Marathons 29:54:22 h116
2023
04.11 50mi USA10th Azalea 50 Mile Race 9:27:27 h1 🏆
14.01 100mi USA13th Long Haul 100 Mile Ultra-Marathons 25:26:21 h41
2022
15.01 100mi USA12th Long Haul 100 Mile Ultra-Marathons 24:50:54 h39
2021
24.10 50km USA14th Jacks 50k Trail Race 6:58:52 h14
09.10 50km USA29th John Holmes 50k Trail Run 5:20:32 h8
04.09 46mi USA8th Pinellas Trail Challenge 9:00:27 h22
17.04 50mi USA9th J.W. Corbett 50 Mile Trail Race 10:32:00 h3 🥉
27.02 118mi USA15th LOST 118 Mile Endurance Run 25:21:18 h3 🥉
16.01 100mi USA11th Long Haul 100 Mile Ultra-Marathons 22:25:25 h21
2020
18.06 326mi USA1st The Last Annual Heart of the South Road Race 7d 07:22:57 h14
18.01 100mi USA10th Long Haul 100 Mile Ultra-Marathons 25:38:19 h36
2019
21.12 100mi USA21st Ancient Oaks 100 Mile Run 30:42:59 h14
11.07 500km USA14th Last Annual Vol-State 500K Endurance Run 8d 10:52:02 h73
19.01 100mi USA9th Long Haul 100 Mile Ultra-Marathons 27:41:10 h57
2018
15.12 100mi USA20th Ancient Oaks 100 Mile Run 30:01:46 h12
13.01 100mi USA8th Long Haul 100 Mile Ultra-Marathons 26:47:55 h7
2017
02.09 46mi USA4th Pinellas Trail Challenge 10:24:47 h45
12.02 110mi/2stages USA5th Donna 110 Ultra Marathon 27:06:30 h9
14.01 100mi USA7th Long Haul 100 Mile Ultra-Marathons 29:09:59 h17
2016
03.09 46mi USA3rd Pinellas Trail Challenge 9:27:52 h31
13.08 6h USA2nd DURTY B-EE-RR-UN 6hr St. Pete Fat Ass 49.245 km11
29.01 150mi USA3rd Skydive Ultra Run - 150 Miles 43:12:52 h3 🥉
16.01 100mi USA6th Long Haul 100 Mile Ultra-Marathons 27:15:23 h20
2015
14.11 12h USA2nd Azalea 12 Hour Race 97.075 km3 🥉
16.05 100mi USA8th Keys100 Ultra-Marathons 100mi 23:49:18 h25
04.04 50km USA21th Croom Trail 50K I'm Not A Fool Run 4:54:50 h12
07.03 116mi USA2nd Cross Florida Route 40 Romp 27:35:03 h3 🥉
2014
20.12 100mi USA16th Ancient Oaks 100 Mile Run 25:15:46 h7
11.10 50km USA23rd John Holmes 50k Trail Run 5:23:56 h19
30.08 46mi USA1st Pinellas Trail Challenge 9:45:00 h10
16.03 50km USA2srt Citrus Trail 50K 5:15:50 h8
18.01 100mi USA4th Long Haul 100 Mile Ultra-Marathons 26:54:06 h18
2013
14.10 50km USA22nd John Holmes 50k Trail Run 6:06:41 h37
18.05 100mi USA6th Keys100 Ultra-Marathons 100mi 28:52:36 h41
17.03 50km USA1srt Citrus Trail 50K 6:10:00 h13
2012
13.10 50km USA21st John Holmes 50k Trail Run 5:58:49 h30
19.05 100mi USA5th Keys100 Ultra-Marathons 100mi 27:15:44 h61
21.01 100mi USA2nd Long Haul 100 Mile Ultra-Marathons 23:38:28 h12
2011
08.10 50km USA20th John Holmes 50k Trail Run 5:27:15 h21
16.01 50km USA1st Croom Zoom 50 km Run 5:23:54 h6
2010
09.10 50km USA19th John Holmes 50k Trail Run 5:24:50 h17