Amy Demarco
ID 193784
Born : 1983 Cat. W40 Ultrarunner since 2011 USA
39
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
49
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
37,8%
Rank quotient ?This runner's calculation uses 39 eligible race(s): Σ(rank − 1) = 1 474; Σ finishers = 3 902. 1 474 / 3 902 × 100 = 37.78%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed39
Km — ultra races2 800 km
> 100 km4
> 160 km4
Longest race170,6 km
12th Cruel Jewel 100 Mile — 18/5/2024

Km per year (ultra races)

248
2 races
2022
187
2 races
2023
235
2 races
2024
187
3 races
2025
311
3 races
2026

Race types (share of distance)

Road11,1%
Trail88,9%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F5
🏅 Top 31
🏅 Top 3 F15
Longest winning streak0
Current streak0

Records

50 km4h41'44100 km14h51'2150 mi9h36'33100 mi30h31'17

HISTORY

39 race(s)
DateRacePerf.Rk
2026
08.08 100mi USA12th Eastern States 100 Mile 30:31:17 h25
30.05 100km USA12th Worlds End Ultramarathon 100K 14:51:21 h20
18.04 50km USA14th Hyner View Trail Challenge 50 km 5:49:58 h43
2025
16.08 50km USA3rd Fabulous Fahnestock Trail Races 7:02:08 h12
21.06 54mi USA13th Manitou's Revenge Ultramarathon 15:38:15 h39
19.04 50km USA8th Shore2Shore Trail Race 5:10:45 h12
2024
18.05 106mi USA12th Cruel Jewel 100 Mile 36:24:03 h74
23.03 40mi USA13th The Mt. Tammany 10 9:31:18 h9
2023
24.06 54mi USA11th Manitou's Revenge Ultramarathon 14:37:30 h22
03.06 100km USA9th Worlds End Ultramarathon 100K 17:10:56 h55
2022
13.08 100mi USA8th Eastern States 100 Mile 31:58:36 h58
25.06 54mi USA10th Manitou's Revenge Ultramarathon 16:05:48 h32
2021
11.09 100mi USA9th Virgil Crest 100 Mile Ultra 30:41:00 h22
06.06 50km USA6th NJ Series Spring Watchung 50 km Run 6:34:01 h4
08.05 50km USA19th Long Island Greenbelt Trail 50 km 6:40:10 h25
10.04 50km USA3rd Shore2Shore Trail Race 5:42:22 h38
2019
12.10 50mi USA7th Tesla Hertz Run 50 Miles 9:36:33 h3 🥉
15.09 50km USA1st Macedonia Trail 50km Race 8:13:45 h9
10.08 50km USA8th Wildcat Ridge Romp 50 km 6:05:15 h9
04.05 50km USA12th Endurance Challenge - New York Trail 50 km 6:54:23 h126
07.04 70km USA5th Paumanok Pursuit 70K Trail Run 8:27:50 h19
2017
07.10 50km USA5th Tesla Hertz Run 50 km 5:41:34 h5
16.09 50km USA1st The Baker's Revenge Trail Race - 50K Cruller Crawl 6:05:50 h9
30.04 50km USA43th Lake Waramaug 50km Ultra Marathon 5:14:01 h20
02.04 70km USA3rd Paumanok Pursuit 70K Trail Run 10:42:00 h29
05.03 50km USA15th Caumsett Park 50K Lloyd Neck - Open Race 6:17:01 h35
2016
08.10 50km USA4th Tesla Hertz Run 50 km 6:52:15 h11
2014
15.11 60km USA34th NYRR Knickerbocker 60K 6:25:12 h138
11.10 50km USA2nd Tesla Hertz Run 50 km 5:59:32 h9
2013
15.06 50mi USA2nd OSS/CIA 50 Mile Night Run 12:08:38 h17
01.06 50km USA4th Mayapple 50 km Trail Run 7:22:01 h11
04.05 50mi USA6th Endurance Challenge - New York Trail 50 Miles 12:42:24 h163
20.04 50km USA35th Sybil Ludington 50 km Run 4:58:18 h21
13.04 50km USA4th Traprock 50k Ultramarathon 7:02:15 h86
23.03 50km USA4th New Jersey Ultra Festival 50 km Race 5:44:34 h23
03.03 50km USA11th Caumsett Park 50K Lloyd Neck - Open Race 4:49:29 h22
2011
04.06 50mi USA4th Endurance Challenge - Washington D.C. Trail 50 Miles 11:09:11 h148
07.05 50km USA4th Endurance Challenge - New York Trail 50 km 7:05:53 h103
23.04 50km USA37th Lake Waramaug 50km Ultra Marathon 4:41:44 h7