Bethy Ronces
ID 324300
Born : 1964 Cat. W60 Ultrarunner since 2010 USA
44
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
45
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
63,6%
Rank quotient ?This runner's calculation uses 44 eligible race(s): Σ(rank − 1) = 4 670; Σ finishers = 7 341. 4 670 / 7 341 × 100 = 63.62%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed44
Km — ultra races2 547 km
Longest race100,0 km
22nd Miwok 100k Trail Race — 6/5/2017

Km per year (ultra races)

195
4 races
2022
272
5 races
2023
176
3 races
2024
46
1 race
2025
2026

Race types (share of distance)

Road10,5%
Trail89,5%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F0
🏅 Top 30
🏅 Top 3 F2
Longest winning streak0
Current streak0

Records

50 km5h29'26100 km14h15'0050 mi10h30'086 h49,89 km12 h76,07 km

HISTORY

44 race(s)
DateRacePerf.Rk
2025
29.11 28.4mi USA40th Quad Dipsea Trail Run 8:09:45 h226
2024
30.11 28mi USA39th Quad Dipsea Trail Run 7:42:01 h215
11.08 50km USA11th Marlette Lake Tahoe 50K 7:59:45 h65
09.03 50mi USA12th Marin Ultra Challenge 50 Mile Race 13:28:46 h110
2023
25.11 28mi USA38th Quad Dipsea Trail Run 7:15:02 h231
11.11 50km USA11th Mt. Tam Trail Run 7:52:42 h89
19.08 31.5mi USA22nd Tamalpa Headlands 50K 8:01:48 h190
17.06 12h USA2nd SF Half Day 12h 76.065 km20
18.02 50km USA11th FOURmidable 50K 7:25:08 h154
2022
26.11 28mi USA37th Quad Dipsea Trail Run 7:21:31 h198
08.10 50km USA36th Ruth Anderson Ultra 50km 5:29:26 h25
13.08 50km USA9th Marlette Lake Tahoe 50K 7:59:46 h65
17.07 50km USA4th Big Chief 50K Trail Run 6:01:45 h22
2021
27.11 28mi USA36th Quad Dipsea Trail Run 7:59:17 h216
13.11 50km USA9th Mt. Tam Trail Run 8:00:16 h118
2018
10.03 50mi USA7th Marin Ultra Challenge 50 Mile Race 12:26:05 h108
2017
11.11 50km USA6th Mt. Tam Trail Run 7:41:58 h56
13.08 50km USA4th Marlette Lake Tahoe 50K 7:38:43 h48
06.08 50km USA36th Skyline 50k Endurance Run 7:07:00 h130
06.05 100km USA22nd Miwok 100k Trail Race 14:41:28 h210
2016
31.12 12h USA7th New Years One Day 12 Hour Run 70.328 km11
12.11 50km USA5th Mt. Tam Trail Run 7:24:27 h82
27.08 31.5mi USA17th Tamalpa Headlands 50K 7:06:07 h145
09.07 50km USA6th Golden Gate 50 km Summer Trail Run 7:23:15 h30
2015
31.12 12h USA6th New Years One Day 12 Hour Run 70.272 km25
02.05 100km USA20th Miwok 100k Trail Race 14:15:00 h187
19.04 50km USA7th Diablo Trails Challenge 7:31:05 h65
04.04 50km USA4th Grizzly Peak 50k 7:21:57 h12
22.03 50km USA5th Canyon Meadow (March) 50 km Trail Run 6:12:00 h31
2014
17.08 50km USA1st Marlette Lake Tahoe 50K 6:39:22 h23
02.08 50mi USA2nd San Francisco 50 Mile Endurance Run 11:57:29 h36
19.07 50km USA1st SPASM Lake Chabot 50 km 6:48:28 h21
12.07 50km trail race USA4th Golden Gate 50 km Summer Trail Run 6:23:59 h35
08.06 50km USA3rd Big Basin - Skyline to the Sea 50 km 6:49:39 h70
03.05 100km USA19th Miwok 100k Trail Race 14:23:00 h212
19.04 50km USA6th Diablo Trails Challenge 6:39:05 h55
15.03 50mi USA3rd Marin Ultra Challenge 50 Mile Race 11:38:56 h54
08.02 50km USA4th Golden Gate 50 km Winter Trail Run 6:47:18 h23
18.01 50km USA4th Steep Ravine 50 km Trail Run 6:50:06 h18
2013
21.09 50km USA3rd Coastal 50 km Trail Run 7:19:04 h69
06.04 50mi USA34th American River 50 Mile Endurance Run 10:30:08 h413
09.03 50km USA24th Way Too Cool 50K Endurance Run 6:08:51 h486
2011
27.08 31.5mi USA12th Tamalpa Headlands 50K 6:49:38 h106
2010
10.07 6h USA1st Dirty Dozen 6h Endurance Run 49.889 km9