Robin Grossman
ID 866776
Born : 1974 Cat. W50 Ultrarunner since 2016 USA
44
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
48
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
56,1%
Rank quotient ?This runner's calculation uses 45 eligible race(s): Σ(rank − 1) = 3 835; Σ finishers = 6 840. 3 835 / 6 840 × 100 = 56.07%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed47
Km — ultra races2 719 km
> 100 km1
Longest race150,0 km
13th West Virginia Trilogy Stage Race — 11/10/2024

Km per year (ultra races)

100
2 races
2022
345
6 races
2023
495
7 races
2024
345
5 races
2025
214
4 races
2026

Race types (share of distance)

Trail94,5%
Stage5,5%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F2
🏅 Top 30
🏅 Top 3 F3
Longest winning streak0
Current streak0

Records

50 km6h19'08100 km16h50'2550 mi11h26'37

HISTORY

45 race(s)
DateRacePerf.Rk
2026
20.06 40mi USA23rd Highlands Sky 40M Trail Run 9:49:26 h71
25.04 50km USA26th Promise Land 50K++ 8:02:39 h191
21.03 50km USA19th Terrapin Mountain 50 km Race 7:09:19 h46
14.02 50km USA31st Holiday Lake 50K++ 7:22:42 h92
2025
01.11 50km USA43rd Mountain Masochist 50km Trail Run 7:47:47 h38
20.09 100km USA17th Grindstone 100 km 17:51:46 h140
14.06 40mi USA22nd Highlands Sky 40M Trail Run 10:39:14 h98
26.04 50km USA25th Promise Land 50K++ 7:55:46 h154
22.03 50mi USA3rd Mount Mitchell Heartbreaker 13:01:10 h59
2024
12.10 50mi USA13th West Virginia Trilogy 50 Mile 13:02:02 h25
11.10 50km USA13th West Virginia Trilogy 50 km 7:16:21 h28
11.10 150km/3stages USA13th West Virginia Trilogy Stage Race 22:52:51 h16
20.07 50km USA12th Catherine's 50k Run 7:31:00 h32
20.04 50km USA24th Promise Land 50K++ 7:22:00 h117
23.03 40mi USA2nd Hone Quarry 40 Miler 10:13:44 h36
17.02 50km USA3rd Cabin Fever 50 km Race 6:54:21 h148
2023
04.11 50mi USA41st Mountain Masochist 50 Mile Trail Run 11:30:36 h51
13.10 50km USA12th West Virginia Trilogy 50 km 7:16:40 h30
17.06 40mi USA20th Highlands Sky 40M Trail Run 10:36:44 h111
22.04 50km USA23th Promise Land 50K++ 7:55:58 h178
18.03 50km USA16th Terrapin Mountain 50 km Race 6:57:03 h65
18.02 50km USA28th Holiday Lake 50K++ 6:54:03 h97
2022
23.04 50km USA22th Promise Land 50K++ 8:06:16 h181
19.03 50km USA15th Terrapin Mountain 50 km Race 6:57:09 h82
2021
30.01 50km USA3rd South Mountains Marathons 7:38:51 h58
2020
12.12 100km USA18th Hellgate 100 km 16:50:25 h102
17.10 50km USA7th Cloudsplitter 100 - 50 km Run 6:54:28 h13
12.09 45mi USA3rd Breaks Ultra Race 13:39:05 h35
15.02 50km USA25th Holiday Lake 50K++ 6:19:08 h143
2019
02.11 50mi USA37th Mountain Masochist 50 Mile Trail Run 11:36:58 h93
07.09 45mi USA2nd Breaks Ultra Race 12:32:46 h18
08.06 40mi USA16th Highlands Sky 40M Trail Run 10:00:28 h91
27.04 50km USA19th Promise Land 50K++ 7:46:12 h169
23.03 50km USA12th Terrapin Mountain 50 km Race 6:39:43 h72
16.02 50km USA24th Holiday Lake 50K++ 6:47:14 h99
2018
03.11 50mi USA36th Mountain Masochist 50 Mile Trail Run 11:26:37 h122
13.10 50km USA5th Cloudsplitter 100 - 50 km Run 6:42:47 h6
28.04 50km USA18th Promise Land 50K++ 7:22:01 h107
24.03 50km USA11th Terrapin Mountain 50 km Race 6:30:02 h63
17.02 50km USA23rd Holiday Lake 50K++ 6:21:39 h94
2017
07.10 50km USA4th Cloudsplitter 100 - 50 km Run 6:48:19 h12
29.04 50km USA17th Promise Land 50K++ 8:17:16 h208
18.03 50km USA10th Terrapin Mountain 50 km Race 6:57:00 h108
11.02 50km USA22nd Holiday Lake 50K++ 6:36:44 h173
2016
01.10 50km USA3rd Cloudsplitter 100 - 50 km Run 7:19:31 h8