Dennis Parsons
ID 255487
Born : 1959 Cat. M65 Ultrarunner since 2011 USA
30
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
36
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
83,9%
Rank quotient ?This runner's calculation uses 30 eligible race(s): Σ(rank − 1) = 3 233; Σ finishers = 3 853. 3 233 / 3 853 × 100 = 83.91%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed30
Km — ultra races1 710 km
Longest race100,0 km
19th Miwok 100k Trail Race — 3/5/2014

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road3,3%
Trail96,7%

Records

50 km6h52'36100 km16h15'0550 mi11h41'5012 h56,56 km

HISTORY

30 race(s)
DateRacePerf.Rk
2017
20.05 50km USA5th San Francisco 50 km Endurance Run 10:42:26 h27
11.03 50km USA6th Marin Ultra Challenge 50 km Race 9:39:43 h191
2016
12.03 50km USA5th Marin Ultra Challenge 50 km Race 8:58:51 h185
2015
31.12 12h USA6th New Years One Day 12 Hour Run 56.560 km38
08.02 50km USA5th Golden Gate 50 km Winter Trail Run 7:50:57 h53
2014
11.10 50mi USA32nd Dick Collins Firetrails 50 Mile 12:36:25 h223
20.09 50km USA4th Coastal 50 km Trail Run 7:37:45 h86
23.08 31.5mi USA15th Tamalpa Headlands 50K 8:08:25 h166
02.08 50mi USA2nd San Francisco 50 Mile Endurance Run 13:54:08 h57
19.07 50km USA1st SPASM Lake Chabot 50 km 6:52:36 h22
12.07 50km trail race USA4th Golden Gate 50 km Summer Trail Run 7:38:58 h55
14.06 50km USA3rd Rodeo Valley 50 km Trail Run 7:47:52 h44
08.06 50km USA3rd Big Basin - Skyline to the Sea 50 km 7:59:05 h115
31.05 50km USA4th Canyon Meadow (Spring) 50 km Trail Run 7:15:52 h45
03.05 100km USA19th Miwok 100k Trail Race 16:15:05 h350
19.04 50km USA6th Diablo Trails Challenge 7:49:29 h105
05.04 50mi USA35th American River 50 Mile Endurance Run 11:41:50 h583
15.03 50mi USA3rd Marin Ultra Challenge 50 Mile Race 13:46:37 h100
08.02 50km USA4th Golden Gate 50 km Winter Trail Run 7:24:45 h29
18.01 50km USA4th Steep Ravine 50 km Trail Run 8:14:17 h39
2013
21.09 50km USA3rd Coastal 50 km Trail Run 8:04:58 h86
03.08 50mi USA1st San Francisco 50 Mile Endurance Run 13:06:21 h47
22.06 50km USA2nd Marin Ultra Challenge 50 km Race 8:04:04 h68
09.06 50km USA2nd Big Basin - Skyline to the Sea 50 km 7:13:36 h116
2012
30.12 50km USA1st Rodeo Valley 50 km Trail Run - Winter 7:45:54 h47
22.09 50km USA2nd Coastal 50 km Trail Run 7:59:49 h68
30.06 50km USA1st Marin Ultra Challenge 50 km Race 8:45:27 h64
10.06 50km USA1st Big Basin - Skyline to the Sea 50 km 8:19:29 h103
2011
24.09 50km USA1st Coastal 50 km Trail Run 7:02:30 h46
10.04 50km USA4th Skyline to the Sea 50km 6:53:00 h105