Tammy Gray
ID 760276
Born : 1955 Cat. W70 Ultrarunner since 2007 USA
11
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
25
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
77,2%
Rank quotient ?This runner's calculation uses 11 eligible race(s): Σ(rank − 1) = 840; Σ finishers = 1 088. 840 / 1 088 × 100 = 77.21%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed11
Km — ultra races668 km
> 100 km1
> 24h1
Longest race102,4 km
7th Crooked Road 24 Hour Ultra — 18/11/2017

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road46,2%
Trail53,8%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F2
🏅 Top 31
🏅 Top 3 F3
Longest winning streak0
Current streak0

Records

50 km7h55'2850 mi16h17'1212 h64,37 km24 h102,37 km

HISTORY

11 race(s)
DateRacePerf.Rk
2018
08.04 50mi USA24th Umstead Endurance Run 50 Miles 16:17:12 h111
18.03 50km USA6th The Pistol 50 km Ultra Run 7:55:28 h116
2017
16.12 12h USA1st Frozen Rock 12 hour day race 57.936 km18
25.11 12h USA3rd Oxbow Ultra 12 Hour Runs 64.373 km2 🥈
18.11 24h USA7th Crooked Road 24 Hour Ultra 102.370 km36
03.06 12h USA2nd Ozone Endurance Challenge 12 Hour Day Race 51.499 km8
27.05 10h USA11th Run Under The Stars 10 Hour Endurance Run 50.292 km22
2016
31.12 50km USA5th The Pistol 50 km Ultra Run 7:55:29 h166
26.11 12h USA2nd Oxbow Ultra 12 Hour Day Run 56.327 km5
02.01 55km USA4th The Pistol 55 km Ultra Run 8:08:45 h111
2007
28.04 50km USA7th Promise Land 50K++ 9:32:02 h256