Dennis Barrett

Born : 1949 Cat. M75 Ultrarunner since 1980

DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.

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

Countries visited ?

South Africa

United States

46,5%

Rank quotient ?This runner's calculation uses 5 eligible race(s): Σ(rank − 1) = 769; Σ finishers = 1 655. 769 / 1 655 × 100 = 46.47%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed5

Km — ultra races320 km

> 100 km1

> 24h2

Longest race101,8 km

10th Olander Park 24 Hour Run — 16/9/2000

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road65,1%

Trail34,9%

Records

50 km8h00'30 12 h61,72 km 24 h101,84 km

HISTORY

5 race(s)

Date		Race	Perf.	Rk
2008
17.05	12h	4th Watershed Preserve 12 Hr Trail Race	61.718 km	33
2007
28.07	24h	11th Around The Lake Ultra 24h	50.855 km	70
27.05	50km	2nd Forest Park 50K	8:00:30 h	28
2000
16.09	24h	10th Olander Park 24 Hour Run	101.836 km	94
1980
05.04	56km	11th Two Oceans Marathon	4:39:54 h	549

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	16/9/2000	10th Olander Park 24 Hour Run	101,84	×6
✓ 2	17/5/2008	4th Watershed Preserve 12 Hr Trail Race	61,72	×3
✓ 3	5/4/1980	11th Two Oceans Marathon	56,00	×3
✓ 4	28/7/2007	11th Around The Lake Ultra 24h	50,86	×3
✓ 5	27/5/2007	2nd Forest Park 50K	50,00	×3