Jack Cook

ID 11989

Born : 1967 Cat. M55 Ultrarunner since 2004

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 ?

Canada

Italy

Netherlands

United States

38,3%

Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 491; Σ finishers = 1 281. 491 / 1 281 × 100 = 38.33%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed16

Km — ultra races1 461 km

> 100 km4

Longest race125,0 km

12th Canadian Death Race — 30/7/2011

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road30,8%

Trail69,2%

Wins & podiums (ultra)

🏆 Win9

🏆 Win M9

🏅 Top 310

🏅 Top 3 M10

Longest winning streak3

Current streak0

Records

50 km3h42'57 100 km7h37'02 50 mi6h30'11

HISTORY

18 race(s) · 1 split(s) nested

Date		Race	Perf.	Rk
2012
26.05	50km	11th Blackfoot Ultra 50 km	4:03:12 h	2 🥈
2011
30.07	125km	12th Canadian Death Race	18:26:12 h	18
25.06	50km	1st Rundle’s Revenge - Mountain Mule Trail Run	4:43:10 h	1 🏆
2010
04.12	50mi	4th Endurance Challenge - California Trail 50 Mile	12:50:48 h	190
2009
30.05	50km	8th Blackfoot Ultra 50 km	3:43:38 h	1 🏆
2008
08.11	100km	IAU 100 km WC Tuscania (100 km degli Etruschi)	10:48:04 h	151
02.08	125km	9th Canadian Death Race	13:56:13 h	1 🏆
24.05	100km	7th Blackfoot Ultra 100 km	13:36:56 h	29
03.05	50km	21st Harriers Elk/Beaver Ultras, 100km - 50km Split	3:34:03 h	2 🥈
03.05	100km	21st Harriers Elk/Beaver Ultras, 100km	7:43:03 h	1 🏆
2007
04.08	125km	8th Canadian Death Race	15:03:28 h	1 🏆
14.07	50km	1st Fast Trax Ultra 50km	3:42:57 h	1 🏆
05.05	100km	7th Toronto Ultra Race 100km	10:03:05 h	8
2006
05.08	125km	7th Canadian Death Race	13:48:24 h	1 🏆
2005
07.05	100km	5th Toronto Ultra Race 100km	7:37:02 h	1 🏆
07.05	50km	5th Toronto Ultra Race 100km - 50km Split	3:29:02 h	1 🏆
2004
11.09	100km	29. IAU 100km WC Winschoten	8:49:06 h	100
11.09	50mi	29. IAU 100km WC Winschoten - 50mi split	7:21:28 h	70
29.05	50mi	3rd Blackfoot Ultra 50 Mile	6:30:11 h	1 🏆

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	30/7/2011	12th Canadian Death Race	125,00	×3
✓ 2	2/8/2008	9th Canadian Death Race	125,00	×3
✓ 3	4/8/2007	8th Canadian Death Race	125,00	×3
✓ 4	5/8/2006	7th Canadian Death Race	125,00	×3
✓ 5	8/11/2008	IAU 100 km WC Tuscania (100 km degli Etruschi)	100,00	×3
✓ 6	24/5/2008	7th Blackfoot Ultra 100 km	100,00	×3
✓ 7	3/5/2008	21st Harriers Elk/Beaver Ultras, 100km	100,00	×3
✓ 8	5/5/2007	7th Toronto Ultra Race 100km	100,00	×3
✓ 9	7/5/2005	5th Toronto Ultra Race 100km	100,00	×3
✓ 10	11/9/2004	29. IAU 100km WC Winschoten	100,00	×3
✓ 11	4/12/2010	4th Endurance Challenge - California Trail 50 Mile	80,47	×2
✓ 12	29/5/2004	3rd Blackfoot Ultra 50 Mile	80,47	×2
✓ 13	26/5/2012	11th Blackfoot Ultra 50 km	50,00	×1
✓ 14	25/6/2011	1st Rundle’s Revenge - Mountain Mule Trail Run	50,00	×1
✓ 15	30/5/2009	8th Blackfoot Ultra 50 km	50,00	×1
✓ 16	14/7/2007	1st Fast Trax Ultra 50km	50,00	×1