Keith Collingwood

Born : 1950 Cat. M75 Ultrarunner since 2015

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 ?

United States

72,8%

Rank quotient ?This runner's calculation uses 6 eligible race(s): Σ(rank − 1) = 195; Σ finishers = 268. 195 / 268 × 100 = 72.76%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed6

Km — ultra races306 km

Longest race56,6 km

8th Dizzy Daze 12 hours — 25/3/2017

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road67,3%

Trail32,7%

Records

50 km7h59'00 12 h56,65 km

HISTORY

6 race(s)

Date		Race	Perf.	Rk
2025
29.03	12h	15th Dizzy Daze 12 Hour Race	46.349 km	51
2024
30.03	12h	14th Dizzy Daze 12 Hour Race	51.499 km	35
2017
09.09	12h	5th Hamster Endurance Runs 12 Hour Run	50.211 km	12
25.03	12h	8th Dizzy Daze 12 hours	56.648 km	18
2015
25.04	50km	2nd Snake River Island Hop 50K	7:59:00 h	28
14.03	12h	7th Dizzy Daze 12 hours	51.499 km	57

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	25/3/2017	8th Dizzy Daze 12 hours	56,65	×3
✓ 2	30/3/2024	14th Dizzy Daze 12 Hour Race	51,50	×3
✓ 3	14/3/2015	7th Dizzy Daze 12 hours	51,50	×3
✓ 4	9/9/2017	5th Hamster Endurance Runs 12 Hour Run	50,21	×3
✓ 5	25/4/2015	2nd Snake River Island Hop 50K	50,00	×3
✓ 6	29/3/2025	15th Dizzy Daze 12 Hour Race	46,35	×2