Esmond Mah

Born : 1949 Cat. M75 Ultrarunner since 1981

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

France

United Kingdom

Greece

Italy

United States

59,7%

Rank quotient ?This runner's calculation uses 73 eligible race(s): Σ(rank − 1) = 2 842; Σ finishers = 4 762. 2 842 / 4 762 × 100 = 59.68%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed73

Km — ultra races6 784 km

> 100 km16

> 160 km9

> 200 km4

> 24h15

> 48h1

Longest race482,8 km

5th Edward Payson Weston Six Day Track Race — 17/6/1984

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road72,8%

Trail27,2%

Wins & podiums (ultra)

🏆 Win3

🏆 Win M3

🏅 Top 310

🏅 Top 3 M10

Longest winning streak1

Current streak0

Records

50 km4h20'07 100 km9h13'00 50 mi6h38'32 100 mi28h50'55 6 h56,09 km 12 h100,90 km 24 h220,01 km 6 d482,80 km

HISTORY

74 race(s) · 22 split(s) nested

Date		Race	Perf.	Rk
2004
02.10	12h	4. 12 heures 'Michel Gouin' Drummondville	51.570 km	22
2003
15.11	50km	5th Mendon 50K Trail Run	8:08:20 h	13
2002
19.10	12h	23th Presque Isle 12 Hour Endurance Classic	88.513 km	7
25.05	50km	1st Blackfoot Ultra 50 km	7:57:45 h	30
2001
06.10	50km	10th Slough Of Despond 50 km Road Race	6:45:10 h	53
06.10	50km	2nd Lost Soul Ultra 50 km Race	9:29:00 h	33
01.09	50mi	6th Haliburton Forest 50 Mile Race	13:29:30 h	23
09.06	6h	9th Self Transcendence 6 Hour Run Kingston	46.000 km	36
2000
14.10	50km	9th Slough Of Despond 50 km Road Race	6:15:06 h	48
02.09	50mi	5th Haliburton Forest 50 Mile Race	11:25:20 h	19
12.08	50km	Bechtel Park Trail Race	6:19:54 h	28
29.07	59km	Cross Calgary 50km	7:00:00 h	25
22.07	50km	4th Damn Tuff Ruff Bluff Run	6:15:48 h	39
24.06	50mi	7th Niagara Ultra 50 Mile	10:45:59 h	11
10.06	6h	8th Self Transcendence 6 Hour Run Kingston	49.277 km	38
1999
09.10	50km	8th Slough Of Despond 50 km Road Race	6:12:20 h	35
18.09	50km	5e 50km de Saint-Donat	6:22:40 h	10
04.09	50km	4th Haliburton Forest 50 km Race	7:42:54 h	24
07.08	50km	Bechtel Park Trail Race	6:49:27 h	41
24.07	12h	La Course Michel Voyer 12 Hours	100.900 km	6
03.07	100km	7th Niagara Ultra 100 km	13:53:10 h	18
05.06	50km	7th Self Transcendence 6 Hour Run Kingston - 50km Split	5:20:34 h	22
05.06	6h	7th Self Transcendence 6 Hour Run Kingston	56.089 km	21
15.05	100km	Open Race at IAU 100km WC Chavagnes en Paillers (12 ème Les 100 km de Vendée)	11:44:53 h	761
01.05	40mi	21st Strolling Jim 40 Mile	7:43:20 h	27
10.04	50km	4th Ascension 50 km Run	5:57:09 h	36
1998
10.10	50km	7th Slough Of Despond 50 km Road Race	5:25:59 h	40
12.09	24h	18th Self-Transcendence 24 Hour Race Ottawa	89.600 km	39
12.09	50km	18th Self-Transcendence 24 Hour Race Ottawa - 50km Split	9:50:24 h	46
12.09	12h	18th Self-Transcendence 24 Hour Race Ottawa - 12h Split	61.600 km	42
12.09	50mi	18th Self-Transcendence 24 Hour Race Ottawa - 50mi Split	16:42:10 h	39
05.09	100mi	3rd Haliburton Forest 100 Mile Race	28:50:55 h	17
25.07	50km	2nd Damn Tuff Ruff Bluff Run	6:31:39 h	33
27.06	100km	6th Niagara Ultra 100 km	13:42:26 h	25
30.05	100km	26^ 100 km del Passatore, Firenze-Faenza	13:44:21 h	424
23.05	50km	6th Sulphur Springs Trail Run 50km	5:59:35 h	38
25.04	50km	3rd Ganaraska 50 km Trail Run	6:26:39 h	26
04.04	50km	3rd Ascension 50 km Run	5:20:11 h	23
1997
31.12	24h	15th Across the Years, 24h	122.400 km	7
11.10	50km	6th Slough Of Despond 50 km Road Race	5:04:53 h	29
30.08	50mi	2nd Haliburton Forest 50 Mile Race	10:54:30 h	16
28.06	50km	5th Niagara Ultra 50 km	5:51:35 h	37
1996
12.12	50mi	7th Sunmart Texas Trails 50 Mile	10:42:06 h	216
12.10	50km	5th Slough Of Despond 50 km Road Race	5:38:37 h	39
1993
07.11	50mi	10th Nickel City Fifty Miler	9:12:12 h	12
1991
14.09	24h	11th Self-Transcendence 24 Hour Race Ottawa	82.000 km	32
14.09	50mi	11th Self-Transcendence 24 Hour Race Ottawa - 50mi Split	22:22:27 h	32
1990
15.09	24h	10th Self-Transcendence 24 Hour Race Ottawa	136.800 km	17
1989
19.08	24h	Le Defi d'Alma 24 heures	163.724 km	8
20.05	24h	3rd North Coast 24 Hour	102.192 km	11
1988
30.09	245.3km	6. Spartathlon	32:31:00 h	10
04.09	100km	Patenauge's choise 100 km	10:34:10 h	3 🥉
27.08	24h	Burlington Runners 24 Hours	121.987 km	3 🥉
14.05	50mi	Hockley Hills 50 Mile Trail Run	8:48:45 h	5
1987
25.10	50mi	7th Nickel City Fifty Miler	9:08:26 h	18
22.08	12h	Burlington Runners 12 Hours	80.788 km	1 🏆
12.07	24h	North Solihull 24 Hours Track Race	181.051 km	11
12.07	50km	North Solihull 24 Hours Track Race - 50km Split	5:28:30 h	32
12.07	50mi	North Solihull 24 Hours Track Race - 50mi Split	10:10:11 h	33
12.07	100km	North Solihull 24 Hours Track Race - 100km Split	12:41:24 h	28
12.07	100mi	North Solihull 24 Hours Track Race - 100mi Split	21:09:01 h	11
27.06	80mi	South Downs Way 80 Mile Trail Run	17:44:10 h	104
30.05	24h	7th Self-Transcendence 24 Hour Race Ottawa	177.598 km	8
30.05	6h	7th Self-Transcendence 24 Hour Race Ottawa - 6h Split	49.600 km	23
30.05	50km	7th Self-Transcendence 24 Hour Race Ottawa - 50km Split	5:07:06 h	10
30.05	50mi	7th Self-Transcendence 24 Hour Race Ottawa - 50mi Split	8:39:57 h	9
30.05	100km	7th Self-Transcendence 24 Hour Race Ottawa - 100km Split	10:55:59 h	8
30.05	12h	7th Self-Transcendence 24 Hour Race Ottawa - 12h Split	109.200 km	7
30.05	100mi	7th Self-Transcendence 24 Hour Race Ottawa - 100mi Split	18:51:54 h	3 🥉
16.05	24h	1st North Coast 24 Hour	121.182 km	12
09.05	50mi	Hockley Hills 50 Mile Trail Run	8:40:12 h	4
1986
16.11	50mi	3rd San Juan Trail 50 Mile	11:13:39 h	139
26.10	50mi	6th Nickel City Fifty Miler	6:44:23 h	1 🏆
05.10	50mi	The Golden Horseshoe Fifty Miler	7:06:36 h	4
24.05	24h	6th Self-Transcendence 24 Hour Race Ottawa	161.999 km	15
24.05	50mi	6th Self-Transcendence 24 Hour Race Ottawa - 50mi Split	8:44:15 h	12
24.05	100km	6th Self-Transcendence 24 Hour Race Ottawa - 100km Split	10:52:07 h	6
24.05	100mi	6th Self-Transcendence 24 Hour Race Ottawa - 100mi Split	19:42:58 h	7
1984
25.08	50mi	Rainbow Country 20 Bridges	7:13:49 h	7
17.06	6d	5th Edward Payson Weston Six Day Track Race	482.803 km	23
19.05	24h	4th Self-Transcendence 24 Hour Race Ottawa	220.012 km	2 🥈
19.05	50mi	4th Self-Transcendence 24 Hour Race Ottawa - 50mi Split	8:23:42 h	8
19.05	100km	4th Self-Transcendence 24 Hour Race Ottawa - 100km Split	10:37:32 h	7
19.05	100mi	4th Self-Transcendence 24 Hour Race Ottawa - 100mi Split	17:28:03 h	3 🥉
28.04	100km	4th Toronto 100k Ultramarathon	9:13:00 h	9
14.04	24h	Cornbelt Running Club 24 Hour Run	207.203 km	2 🥈
14.04	50mi	Cornbelt Running Club 24 Hour Run - 50mi Split	8:10:31 h	7
14.04	100mi	Cornbelt Running Club 24 Hour Run - 100mi Split	17:50:42 h	3 🥉
1983
18.12	50km	5th Running Central Ultra Challenge 50 km	4:20:07 h	7
18.12	60km	5th Running Central Ultra Challenge 60 km	5:22:30 h	3 🥉
18.12	100km	5th Running Central Ultra Challenge 100 km	9:25:52 h	2 🥈
13.11	50mi	3rd Nickel City Fifty Miler	6:38:32 h	8
16.10	38mi	5th The 38'er Waterloo Run	4:45:54 h	5
1982
03.07	52.4mi	Nunavut Midnight Sun Ultramarathon	8:02:19 h	1 🏆
1981
25.07	24h	1st Self-Transcendence 24 Hour Race Ottawa	99.985 km	13
11.04	100km	1st Toronto 100k Ultramarathon	10:49:24 h	2 🥈

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	17/6/1984	5th Edward Payson Weston Six Day Track Race	482,80	×7
✓ 2	30/9/1988	6. Spartathlon	245,30	×3
✓ 3	19/5/1984	4th Self-Transcendence 24 Hour Race Ottawa	220,01	×3
✓ 4	14/4/1984	Cornbelt Running Club 24 Hour Run	207,20	×3
✓ 5	12/7/1987	North Solihull 24 Hours Track Race	181,05	×2
✓ 6	30/5/1987	7th Self-Transcendence 24 Hour Race Ottawa	177,60	×2
✓ 7	19/8/1989	Le Defi d'Alma 24 heures	163,72	×2
✓ 8	24/5/1986	6th Self-Transcendence 24 Hour Race Ottawa	162,00	×2
✓ 9	5/9/1998	3rd Haliburton Forest 100 Mile Race	160,93	×2
✓ 10	15/9/1990	10th Self-Transcendence 24 Hour Race Ottawa	136,80	×2
✓ 11	27/6/1987	South Downs Way 80 Mile Trail Run	128,75	×2
✓ 12	31/12/1997	15th Across the Years, 24h	122,40	×1
✓ 13	27/8/1988	Burlington Runners 24 Hours	121,99	×1
✓ 14	16/5/1987	1st North Coast 24 Hour	121,18	×1
✓ 15	20/5/1989	3rd North Coast 24 Hour	102,19	×1
✓ 16	24/7/1999	La Course Michel Voyer 12 Hours	100,90	×1
✓ 17	3/7/1999	7th Niagara Ultra 100 km	100,00	×1
✓ 18	15/5/1999	Open Race at IAU 100km WC Chavagnes en Paillers (12 ème Les 100 km de Vendée)	100,00	×1
✓ 19	27/6/1998	6th Niagara Ultra 100 km	100,00	×1
✓ 20	30/5/1998	26^ 100 km del Passatore, Firenze-Faenza	100,00	×1
✓ 21	4/9/1988	Patenauge's choise 100 km	100,00	×1
✓ 22	28/4/1984	4th Toronto 100k Ultramarathon	100,00	×1
✓ 23	18/12/1983	5th Running Central Ultra Challenge 100 km	100,00	×1
✓ 24	11/4/1981	1st Toronto 100k Ultramarathon	100,00	×1
✓ 25	25/7/1981	1st Self-Transcendence 24 Hour Race Ottawa	99,99	×1
✓ 26	12/9/1998	18th Self-Transcendence 24 Hour Race Ottawa	89,60	×1
✓ 27	19/10/2002	23th Presque Isle 12 Hour Endurance Classic	88,51	×1
✓ 28	3/7/1982	Nunavut Midnight Sun Ultramarathon	84,33	×1
✓ 29	14/9/1991	11th Self-Transcendence 24 Hour Race Ottawa	82,00	×1
✓ 30	22/8/1987	Burlington Runners 12 Hours	80,79	×1
✓ 31	1/9/2001	6th Haliburton Forest 50 Mile Race	80,47	×1
✓ 32	2/9/2000	5th Haliburton Forest 50 Mile Race	80,47	×1
✓ 33	24/6/2000	7th Niagara Ultra 50 Mile	80,47	×1
✓ 34	30/8/1997	2nd Haliburton Forest 50 Mile Race	80,47	×1
✓ 35	12/12/1996	7th Sunmart Texas Trails 50 Mile	80,47	×1
✓ 36	7/11/1993	10th Nickel City Fifty Miler	80,47	×1
✓ 37	14/5/1988	Hockley Hills 50 Mile Trail Run	80,47	×1
✓ 38	25/10/1987	7th Nickel City Fifty Miler	80,47	×1
✓ 39	9/5/1987	Hockley Hills 50 Mile Trail Run	80,47	×1
✓ 40	16/11/1986	3rd San Juan Trail 50 Mile	80,47	×1
✓ 41	26/10/1986	6th Nickel City Fifty Miler	80,47	×1
✓ 42	5/10/1986	The Golden Horseshoe Fifty Miler	80,47	×1
✓ 43	25/8/1984	Rainbow Country 20 Bridges	80,47	×1
✓ 44	13/11/1983	3rd Nickel City Fifty Miler	80,47	×1
✓ 45	1/5/1999	21st Strolling Jim 40 Mile	64,37	×1
✓ 46	16/10/1983	5th The 38'er Waterloo Run	61,16	—
✓ 47	29/7/2000	Cross Calgary 50km	59,00	—
✓ 48	5/6/1999	7th Self Transcendence 6 Hour Run Kingston	56,09	—
✓ 49	2/10/2004	4. 12 heures 'Michel Gouin' Drummondville	51,57	—
✓ 50	15/11/2003	5th Mendon 50K Trail Run	50,00	—
51	25/5/2002	1st Blackfoot Ultra 50 km	50,00	—
52	6/10/2001	10th Slough Of Despond 50 km Road Race	50,00	—
53	14/10/2000	9th Slough Of Despond 50 km Road Race	50,00	—
54	12/8/2000	Bechtel Park Trail Race	50,00	—
55	22/7/2000	4th Damn Tuff Ruff Bluff Run	50,00	—
56	9/10/1999	8th Slough Of Despond 50 km Road Race	50,00	—
57	18/9/1999	5e 50km de Saint-Donat	50,00	—
58	4/9/1999	4th Haliburton Forest 50 km Race	50,00	—
59	7/8/1999	Bechtel Park Trail Race	50,00	—
60	10/4/1999	4th Ascension 50 km Run	50,00	—
61	10/10/1998	7th Slough Of Despond 50 km Road Race	50,00	—
62	25/7/1998	2nd Damn Tuff Ruff Bluff Run	50,00	—
63	23/5/1998	6th Sulphur Springs Trail Run 50km	50,00	—
64	25/4/1998	3rd Ganaraska 50 km Trail Run	50,00	—
65	4/4/1998	3rd Ascension 50 km Run	50,00	—
66	11/10/1997	6th Slough Of Despond 50 km Road Race	50,00	—
67	28/6/1997	5th Niagara Ultra 50 km	50,00	—
68	12/10/1996	5th Slough Of Despond 50 km Road Race	50,00	—
69	10/6/2000	8th Self Transcendence 6 Hour Run Kingston	49,28	—
70	9/6/2001	9th Self Transcendence 6 Hour Run Kingston	46,00	—