Carolyn Shreck
ID 362445
Born : 1972 Cat. W50 Ultrarunner since 2012 USA
50
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
52
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
61,3%
Rank quotient ?This runner's calculation uses 61 eligible race(s): Σ(rank − 1) = 3 689; Σ finishers = 6 014. 3 689 / 6 014 × 100 = 61.34%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed63
Km — ultra races4 858 km
> 100 km13
> 160 km11
Longest race170,6 km
7th Cruel Jewel 100 Mile — 17/5/2019

Km per year (ultra races)

2022
100
2 races
2023
2024
48
1 race
2025
147
3 races
2026

Race types (share of distance)

Road4,0%
Trail92,9%
Stage3,1%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F2
🏅 Top 30
🏅 Top 3 F15
Longest winning streak0
Current streak0

Records

50 km5h51'40100 km13h05'1550 mi9h57'26100 mi25h49'2312 h49,89 km

HISTORY

61 race(s)
DateRacePerf.Rk
2026
16.05 12h USA18th 3 Days at the Fair 12 Hour Race 49.889 km24
26.04 50km USA52nd Jack Bristol Lake Waramaug 50km Ultra Marathon 6:00:47 h40
07.03 12h USA3rd Livingston Oval Ultra 46.735 km11
2025
26.07 12h USA1st Ocean State Ultra 48.280 km6
2023
15.04 50km USA10th Runamuck 50K 5:51:40 h30
28.01 50km USA12th Angela Ivory 50K Memorial Run 7:19:33 h18
2020
11.10 50km USA9th Big Brad Ultras - Pounder 50 km 7:44:29 h23
2019
20.07 100mi USA18th Tahoe Rim Trail 100M Endurance Run 32:24:38 h100
17.05 106mi USA7th Cruel Jewel 100 Mile 42:18:25 h95
13.04 50km USA6th Runamuck 50K 5:59:49 h54
12.01 50km USA7th Frozen Gnome 50K 7:25:19 h58
2018
02.12 50km USA4th Dinosaur Valley Endurance Run 50 km 6:57:00 h12
03.11 100mi USA10th Ozark Trail 100 Mile Endurance Run 28:40:57 h27
21.09 100mi USA3rd Marji Gesick 100 Mile Ultra Race 33:53:35 h11
23.06 100mi USA8th Black Hills 100 Mile Run 31:58:09 h35
02.06 50km USA1st Red Devil Challenge 8:05:29 h31
12.05 43mi USA12th TARC Wapack and Back 43 Mile Trail Race 12:23:40 h6
07.04 50km USA5th Runamuck 50K 6:29:53 h79
24.02 50km USA14th Run Toto Run Psycho Wyco 50K 8:02:07 h62
13.01 50km USA6th Ouachita Switchbacks 50K 7:47:00 h23
2017
16.09 50km USA13th Youngstown Ultra Trail Classic 50K 7:15:30 h26
16.06 100mi USA25th Bighorn Mountain Wild & Scenic 100 Mile Trail Run 32:27:49 h126
13.05 43mi USA11th TARC Wapack and Back 43 Mile Trail Race 11:54:39 h7
08.04 50km USA3rd Yamacraw 50k 7:47:03 h119
04.02 40mi USA3rd Rut Rogue 40s 8:18:04 h13
2016
03.12 32mi USA6th TARC Fells Trail Ultra Winter 32 Mile 8:16:07 h37
09.09 100mi USA26th Superior Fall Trail Races 100 Mile 34:14:08 h67
29.05 50km USA11th Trail Festival at Pineland Farms 6:06:21 h133
23.04 50km USA1st Grayson Highlands 50km Race 6:21:37 h71
10.04 50km USA3rd Cape Cod 50K Trail Race 6:31:25 h24
12.03 50km USA13th Dances with Dirt - Green Swamp 50 km Ultra 6:28:50 h33
2015
19.12 50mi USA8th Lookout Mountain 50 Mile Race 10:43:42 h86
07.11 100mi USA8th Pinhoti 100 Mile 27:48:43 h83
18.10 50km USA8th Bimblers Bluff 50k 7:18:36 h66
27.09 50mi USA22nd Vermont 50 Miles Ultra Run 11:06:30 h148
11.09 100mi USA36th Wasatch Front 100 Mile 32:39:06 h116
27.06 100mi USA42nd Western States 100 Mile Endurance Run 28:47:30 h196
31.05 50mi USA3rd Cayuga Trails 50 Mile Race 12:23:56 h130
16.05 50mi USA7th Peak Ultra 50 Mile Endurance Run 14:11:53 h9
09.05 50mi USA9th TARC Wapack and Back 50 Mile Trail Race 13:44:24 h11
28.02 40mi USA17th Mount Mitchell Challenge 8:03:23 h101
2014
11.10 50mi USA5th West Virginia Trilogy 50 Mile 13:33:50 h29
10.10 50km USA5th West Virginia Trilogy 50 km 8:08:32 h52
10.10 150km/3stages USA5th West Virginia Trilogy Stage Race 24:35:27 h27
27.09 50km USA6th Mountain Madness 50K 8:06:41 h27
19.07 100mi USA26th Vermont 100 Mile Endurance Race 25:49:23 h153
28.06 50km USA1st Catamount Ultra Marathon 6:48:04 h67
24.05 50km USA9th Jemez Mountain 50km Trail Run 9:08:04 h110
26.04 50km USA25th Zane Grey Highline Trail 50 km 9:56:11 h89
06.04 50km USA1st Cape Cod 50K Trail Race 6:25:10 h27
15.03 68mi USA2nd Georgia Death Race 19:43:46 h68
2013
02.11 50mi USA13th Stone Cat 50 Mile 10:22:00 h71
13.10 50km USA1st Green Monster Trail Challenge 50K 7:39:08 h33
06.10 50km USA1st Pinnacle Ultra Challenge 6:13:16 h26
29.09 50mi trail race USA20th Vermont 50 Miles Ultra Run 9:57:26 h113
15.09 50km USA16th Pisgah Mountain Trail Race 6:37:40 h56
18.08 100km USA1st Hampshire 100 - 100K run 13:05:15 h15
26.05 50km USA8th Trail Festival at Pineland Farms 6:08:12 h105
04.05 50mi USA6th Endurance Challenge - New York Trail 50 Miles 12:47:26 h169
2012
17.11 50mi USA3rd Stone Mill 50 Mile Run 11:04:41 h147
20.10 50km USA1st Big Brad Ultras - Pounder 50 km 6:45:56 h19