Baldwyn Chieh
ID 37118
Born : 1969 Cat. M55 Ultrarunner since 2007 USA
37
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
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
2
Countries visited ?CANCanadaUSAUnited States
70,5%
Rank quotient ?This runner's calculation uses 37 eligible race(s): Σ(rank − 1) = 3 863; Σ finishers = 5 479. 3 863 / 5 479 × 100 = 70.51%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed37
Km — ultra races3 425 km
> 100 km11
> 160 km10
Longest race160,9 km
32nd Sulphur Springs Trail Run 100 Mile — 24/5/2025

Km per year (ultra races)

341
4 races
2022
292
3 races
2023
261
3 races
2024
521
6 races
2025
2026

Race types (share of distance)

Road15,2%
Trail84,8%

Records

50 km5h27'22100 km16h44'0850 mi8h39'39100 mi28h14'49

HISTORY

37 race(s)
DateRacePerf.Rk
2025
25.10 159.2km USA23rd Javelina Jundred 100 Mile Endurance Run 29:16:44 h457
11.10 50km USA39th Ruth Anderson Ultra 50km 6:57:39 h34
16.08 31.5mi USA24th Tamalpa Headlands 50K 7:32:23 h211
24.05 100mi CAN32nd Sulphur Springs Trail Run 100 Mile 28:53:04 h78
05.04 50km USA16th Diablo Trails Challenge 10:06:42 h96
15.02 50km USA13th FOURmidable 50K 7:33:45 h101
2024
20.07 100mi USA23th Tahoe Rim Trail 100M Endurance Run 35:26:15 h101
06.04 50km USA15th Diablo Trails Challenge 7:30:32 h42
02.03 50km USA3rd North Marin Ridge 50km Run 7:38:12 h20
2023
14.10 50mi USA37th Ruth Anderson Ultra 50mi 11:00:18 h19
19.08 31.5mi USA22nd Tamalpa Headlands 50K 7:17:27 h149
15.07 100mi USA22th Tahoe Rim Trail 100M Endurance Run 33:18:07 h76
2022
05.11 100mi USA22nd Rio Del Lago 100 Mile Endurance Run 29:30:19 h181
08.10 50km USA36th Ruth Anderson Ultra 50km 7:44:05 h50
24.09 50mi USA40th Dick Collins Firetrails 50 Mile 14:20:36 h78
07.08 50km USA41st Skyline 50k Endurance Run 8:18:52 h165
2019
27.04 100km USA6th The Canyons Endurance 100 km Run 16:44:08 h185
2018
08.12 50km USA10th Hunter S. Thompson Fear & Loathing 50 km 8:14:00 h38
21.07 100mi USA17th Tahoe Rim Trail 100M Endurance Run 34:19:12 h136
2017
15.07 100mi USA16th Tahoe Rim Trail 100M Endurance Run 34:00:26 h140
2015
10.10 50mi USA33rd Dick Collins Firetrails 50 Mile 10:07:42 h59
18.07 100mi USA14th Tahoe Rim Trail 100M Endurance Run 33:27:13 h135
02.05 50km USA3rd Armstrong Redwoods 50K Trail Run 7:45:50 h9
2014
19.07 100mi USA13th Tahoe Rim Trail 100M Endurance Run 34:09:35 h154
2013
09.03 100mi USA1st Razorback 100 Mile Endurance Race 28:14:49 h10
2012
21.04 50mi USA26th Ruth Anderson Ultra 50mi 8:39:39 h7
07.04 50mi USA33rd American River 50 Mile Endurance Run 9:41:10 h243
2011
12.11 50mi USA1st Last Chance 50 Mile 9:40:08 h58
16.07 50mi USA10th Tahoe Rim Trail 50M Endurance Run 16:26:34 h118
26.02 50km USA8th Redwood Park 50K Trail Run 6:07:59 h26
2010
09.10 50mi USA28th Dick Collins Firetrails 50 Mile 12:35:07 h214
2009
06.06 100mi USA8th San Diego 100 Mile Endurance Run 29:00:51 h66
18.04 50km USA23th Ruth Anderson Ultra 50km 5:27:22 h18
04.04 50mi USA30th American River 50 Mile Endurance Run 10:34:51 h300
2008
19.04 50mi USA22th Ruth Anderson Ultra 50mi 9:10:59 h5
01.03 50km USA6th Skyline Ridge Trail Run 6:18:56 h39
2007
01.12 50km USA1st Endurance Challenge - California Trail 50 km 9:26:45 h82