Eileen Yi Ni Tan
ID 1506784
Born : 1988 Cat. W35 Ultrarunner since 2019 USA
35
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
61,3%
Rank quotient ?This runner's calculation uses 35 eligible race(s): Σ(rank − 1) = 835; Σ finishers = 1 362. 835 / 1 362 × 100 = 61.31%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed35
Km — ultra races2 576 km
> 100 km5
> 160 km5
> 24h1
Longest race162,8 km
43th Cornbelt Running Club 24 Hour Run — 2/5/2026

Km per year (ultra races)

509
7 races
2022
440
6 races
2023
500
7 races
2024
50
1 race
2025
346
4 races
2026

Race types (share of distance)

Road33,7%
Trail66,3%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F1
🏅 Top 31
🏅 Top 3 F7
Longest winning streak0
Current streak0

Records

50 km5h47'04100 km17h05'4750 mi11h48'42100 mi29h02'2624 h162,80 km

HISTORY

35 race(s)
DateRacePerf.Rk
2026
12.09 45km USA12th Pleasant Creek Trail Run 5:36:23 h18
20.06 9h USA11th Schuetzen NEIN! Hour Endurance Run 57.453 km18
02.05 24h USA43th Cornbelt Running Club 24 Hour Run 162.801 km3 🥉
18.04 50mi USA6th Loud Thunder 50 Mile Race 12:14:41 h24
2025
15.03 50km USA9th One Hundred K's of Convenience 50 km Race 6:40:11 h18
2024
18.10 100mi USA7th Mines of Spain 100 Mile Race 29:38:37 h48
24.08 50km USA3rd ScoCo 50 5:47:04 h17
15.06 9h USA9th Schuetzen NEIN! Hour Endurance Run 60.189 km13
01.06 50km USA7th Crater 50km Trail Run - Driftless Discovery 7:25:27 h38
20.04 50mi USA4th Loud Thunder 50 Mile Race 11:48:42 h37
30.03 30mi USA18th Clinton Lake Ultra 7:33:14 h26
09.03 50km USA8th One Hundred K's of Convenience 50 km Race 6:18:45 h16
2023
20.10 100mi USA6th Mines of Spain 100 Mile Race 32:39:41 h77
07.10 50km USA3rd Swiss Valley 50 km Trail Race 7:08:24 h10
09.09 45km USA9th Pleasant Creek Trail Run 6:07:27 h23
17.06 9h USA8th Schuetzen NEIN! Hour Endurance Run 53.349 km25
15.04 50mi USA3rd Loud Thunder 50 Mile Race 13:46:29 h24
11.03 50km USA7th One Hundred K's of Convenience 50 km Race 6:49:52 h10
2022
14.10 100mi USA5th Mines of Spain 100 Mile Race 31:39:29 h51
01.10 50km USA2nd Swiss Valley 50 km Trail Race 7:24:32 h7
27.08 50km USA1st ScoCo 50 6:25:34 h27
18.06 9h USA7th Schuetzen NEIN! Hour Endurance Run 54.717 km22
16.04 50mi USA2nd Loud Thunder 50 Mile Race 12:18:33 h17
26.03 30mi USA16th Clinton Lake Ultra 6:39:53 h20
12.03 40mi USA6th One Hundred K's of Convenience 40 Mile Race 8:06:17 h8
2021
15.10 100mi USA4th Mines of Spain 100 Mile Race 29:02:26 h33
02.10 50km USA1st Swiss Valley 50 km Trail Race 7:48:34 h9
10.07 50mi USA23rd Siskiyou Out Back 50 Miles Trail Run 16:23:55 h40
20.06 50km USA5th One Hundred K's of Convenience 50 km Race 6:30:38 h18
19.06 9h USA6th Schuetzen NEIN! Hour Endurance Run 50.613 km30
17.04 50km USA1st Loud Thunder 50 km Race 8:32:27 h33
2020
14.11 45km USA6th Pleasant Creek Trail Run 6:14:23 h29
16.10 100km USA3rd Mines of Spain 100 km Race 17:05:47 h27
26.09 50mi USA8th Hungerford Trail Race 50 Mile 12:18:55 h41
2019
09.03 40mi USA3rd One Hundred K's of Convenience 40 Mile Race 11:20:59 h13