Michael Leo Griffin

Born : 1966 Cat. M60 Ultrarunner since 2013

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

29,0%

Rank quotient ?This runner's calculation uses 14 eligible race(s): Σ(rank − 1) = 519; Σ finishers = 1 787. 519 / 1 787 × 100 = 29.04%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed14

Km — ultra races1 471 km

> 100 km5

> 160 km5

Longest race160,9 km

38th Wasatch Front 100 Mile — 8/9/2017

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Trail100,0%

Records

50 km5h02'08 100 km13h27'00 50 mi9h40'37 100 mi22h46'08

HISTORY

14 race(s)

Date		Race	Perf.	Rk
2019
24.08	100km	5th Castle Peak 100	16:33:45 h	48
03.08	55km	1st Lost and Found 55km Trail Race	8:00:50 h	13
22.06	50mi	1st Mount Shasta Gateway 50 Mile Trail Race	9:40:37 h	6
2017
08.09	100mi	38th Wasatch Front 100 Mile	29:42:19 h	68
15.07	100mi	16th Tahoe Rim Trail 100M Endurance Run	27:47:59 h	52
29.04	100km	4th The Canyons Endurance 100 km Run	14:16:00 h	54
2016
05.11	100mi	16th Rio Del Lago 100 Mile Endurance Run	22:46:08 h	39
08.04	100mi	5th The Zion 100 Mile Run	24:00:15 h	24
2015
18.07	100mi	14th Tahoe Rim Trail 100M Endurance Run	25:00:42 h	17
11.04	50mi	7th Lake Sonoma 50 Mile Race	10:19:04 h	135
2014
16.08	100km	13th Waldo 100K Trail Run	13:27:00 h	36
2013
01.06	50km	6th Auburn Trail Run 50K	6:41:06 h	8
11.05	50km	30th Quicksilver 50 km Endurance Run	5:46:40 h	23
20.04	50km	7th Tehama Wildflowers Trail Run	5:02:08 h	10

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	8/9/2017	38th Wasatch Front 100 Mile	160,93	×4
✓ 2	15/7/2017	16th Tahoe Rim Trail 100M Endurance Run	160,93	×4
✓ 3	5/11/2016	16th Rio Del Lago 100 Mile Endurance Run	160,93	×4
✓ 4	8/4/2016	5th The Zion 100 Mile Run	160,93	×4
✓ 5	18/7/2015	14th Tahoe Rim Trail 100M Endurance Run	160,93	×4
✓ 6	24/8/2019	5th Castle Peak 100	100,00	×2
✓ 7	29/4/2017	4th The Canyons Endurance 100 km Run	100,00	×2
✓ 8	16/8/2014	13th Waldo 100K Trail Run	100,00	×2
✓ 9	22/6/2019	1st Mount Shasta Gateway 50 Mile Trail Race	80,47	×2
✓ 10	11/4/2015	7th Lake Sonoma 50 Mile Race	80,47	×2
✓ 11	3/8/2019	1st Lost and Found 55km Trail Race	55,00	×1
✓ 12	1/6/2013	6th Auburn Trail Run 50K	50,00	×1
✓ 13	11/5/2013	30th Quicksilver 50 km Endurance Run	50,00	×1
✓ 14	20/4/2013	7th Tehama Wildflowers Trail Run	50,00	×1