Bruce Ames
ID 980265
Born : 1957 Cat. M65 Ultrarunner since 2017 USA
37
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
60,3%
Rank quotient ?This runner's calculation uses 37 eligible race(s): Σ(rank − 1) = 2 713; Σ finishers = 4 499. 2 713 / 4 499 × 100 = 60.30%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed37
Km — ultra races2 942 km
> 100 km5
> 160 km5
Longest race160,9 km
24th Rio Del Lago 100 Mile Endurance Run — 2/11/2024

Km per year (ultra races)

176
3 races
2022
231
4 races
2023
643
7 races
2024
311
5 races
2025
241
3 races
2026

Race types (share of distance)

Road2,7%
Trail97,3%

Records

50 km6h02'04100 km17h54'2650 mi8h52'00100 mi24h46'06

HISTORY

37 race(s)
DateRacePerf.Rk
2026
18.07 50mi USA25th Tahoe Rim Trail 50M Endurance Run 21:20:14 h189
14.03 50mi USA14th Marin Ultra Challenge 50 Mile Race 13:29:03 h156
07.02 50miles USA3rd Monterey Ultra 12:46:30 h116
2025
21.06 50km USA7th Golden State 50K 6:55:07 h41
01.06 50km USA16th Cinderella 50 km Spring Trail Run 8:16:43 h18
10.05 50km USA13th Grizzly Peak 50k 8:54:24 h13
08.03 50mi USA13th Marin Ultra Challenge 50 Mile Race 12:43:49 h110
25.01 50miles USA2nd Monterey Ultra 12:02:05 h65
2024
02.11 100mi USA24th Rio Del Lago 100 Mile Endurance Run 29:43:02 h199
28.09 50km USA1st Sunset & Cider Trail Races 8:02:11 h19
24.08 100mi USA4th Oregon Cascades 100 Mile Race 30:47:55 h181
20.07 50mi USA23th Tahoe Rim Trail 50M Endurance Run 18:30:25 h91
08.06 50km USA15th Cinderella 50 km Spring Trail Run 8:08:26 h20
18.05 60km USA12th Bryce 60 km Trail Run 10:23:45 h77
09.03 50mi USA12th Marin Ultra Challenge 50 Mile Race 12:47:19 h91
2023
19.08 31.5mi USA22nd Tamalpa Headlands 50K 6:52:27 h119
05.08 50km USA12th Rodeo Valley 50 km Trail Run 6:19:55 h19
10.06 50km USA14th Cinderella 50 km Spring Trail Run 7:26:19 h17
20.05 50mi USA10th San Francisco 50 Mile Endurance Run 11:57:40 h18
2022
26.11 28mi USA37th Quad Dipsea Trail Run 7:25:35 h203
15.10 50km USA1st Mt. Umunhum Trail Conquest - Fall 7:11:48 h11
21.05 50mi USA9th San Francisco 50 Mile Endurance Run 11:37:29 h15
2021
06.11 100mi USA21st Rio Del Lago 100 Mile Endurance Run 27:01:40 h125
25.09 50mi USA39th Dick Collins Firetrails 50 Mile 11:38:45 h31
14.08 100km USA7th Castle Peak 100 21:02:12 h104
10.07 50km USA11th Golden Gate 50 km Summer Trail Run 6:21:17 h27
19.06 50mi USA4th Old Cascadia 50 Mile Race 14:36:22 h57
2020
06.12 50mi USA12th Hunter S. Thompson Fear & Loathing 50 Miles 8:52:00 h4
10.10 50mi USA3rd Old Cascadia 50 Mile Race 17:51:56 h54
2019
02.11 100mi USA19th Rio Del Lago 100 Mile Endurance Run 25:38:30 h93
03.08 55km USA1st Lost and Found 55km Trail Race 9:17:50 h30
13.07 50km USA9th Golden Gate 50 km Summer Trail Run 6:02:04 h9
2018
03.11 100mi USA18th Rio Del Lago 100 Mile Endurance Run 24:46:06 h64
18.08 100km USA4th Castle Peak 100 17:54:26 h60
07.07 50km USA8th Golden Gate 50 km Summer Trail Run 6:53:55 h26
2017
18.11 50mi USA11th Endurance Challenge - California Trail 50 Mile 10:50:09 h269
08.07 50km USA7th Golden Gate 50 km Summer Trail Run 6:12:45 h9