Ron Hamilton

Born : 1946 Cat. M80 Ultrarunner since 2003

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

United States

55,7%

Rank quotient ?This runner's calculation uses 23 eligible race(s): Σ(rank − 1) = 1 673; Σ finishers = 3 004. 1 673 / 3 004 × 100 = 55.69%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed23

Km — ultra races1 771 km

> 100 km4

> 160 km3

> 24h2

> 48h1

Longest race178,8 km

7th San Diego One Day 24-Hour Race — 12/11/2005

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road44,5%

Trail55,5%

Wins & podiums (ultra)

🏆 Win0

🏆 Win M0

🏅 Top 31

🏅 Top 3 M1

Longest winning streak0

Current streak0

Records

50 km4h43'53 100 km12h36'49 50 mi9h55'06 100 mi26h09'58 6 h56,16 km 12 h91,73 km 24 h178,82 km 48 h108,50 km

HISTORY

23 race(s)

Date		Race	Perf.	Rk
2009
19.09	56km	2nd The Great Lake Walk	12:27:31 h	260
2008
20.09	56km	1st The Great Lake Walk	12:05:11 h	258
2007
29.12	48h	25th Across the Years, 48h	108.500 km	17
20.10	12h	2nd San Francisco One Day, 12h	91.732 km	8
04.08	12h	1st Cool 12 Hour Night Run	57.936 km	28
12.05	6h	1st Lake Merritt Half Day 6 Hour Run	56.164 km	2 🥈
2006
28.10	12h	1st San Francisco One Day, 12h	52.303 km	28
04.02	50km	28th Jed Smith Ultra Classic - 50 km Race	4:43:53 h	23
2005
12.11	24h	7th San Diego One Day 24-Hour Race	178.820 km	19
25.06	100mi	32th Western States 100 Mile Endurance Run	27:35:00 h	206
30.04	100km	10th Miwok 100k Trail race	12:36:49 h	106
26.03	50km	4th Pirates Cove Trail Run	6:10:11 h	13
26.02	50km	1st Sequoia Trail Run	6:40:03 h	18
05.02	50km	4th Woodside Trail Run 50K	5:59:20 h	32
2004
30.10	100mi	2nd Javelina Jundred 100 Mile	26:09:58 h	29
26.09	12h	12th DSE Distance Classic 12 Hour	81.172 km	7
05.09	50km	10th Run On The Sly 50 km	6:16:06 h	22
05.06	50km	4th Mount Diablo 50K	7:15:20 h	18
03.04	50mi	25th American River 50 Mile Endurance Run	9:55:06 h	204
03.01	50km	2nd Angel Island 50k	5:28:51 h	7
2003
11.10	50mi	21st Dick Collins Firetrails 50 Mile	10:41:18 h	91
17.05	50km	10th Bishop High Sierra Ultramarathons 50 km	6:41:40 h	22
08.03	50km	14th Way Too Cool 50K Endurance Run	6:01:42 h	278

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	12/11/2005	7th San Diego One Day 24-Hour Race	178,82	×4
✓ 2	25/6/2005	32th Western States 100 Mile Endurance Run	160,93	×4
✓ 3	30/10/2004	2nd Javelina Jundred 100 Mile	160,93	×4
✓ 4	29/12/2007	25th Across the Years, 48h	108,50	×2
✓ 5	30/4/2005	10th Miwok 100k Trail race	100,00	×2
✓ 6	20/10/2007	2nd San Francisco One Day, 12h	91,73	×2
✓ 7	26/9/2004	12th DSE Distance Classic 12 Hour	81,17	×2
✓ 8	3/4/2004	25th American River 50 Mile Endurance Run	80,47	×2
✓ 9	11/10/2003	21st Dick Collins Firetrails 50 Mile	80,47	×2
✓ 10	4/8/2007	1st Cool 12 Hour Night Run	57,94	×1
✓ 11	12/5/2007	1st Lake Merritt Half Day 6 Hour Run	56,16	×1
✓ 12	19/9/2009	2nd The Great Lake Walk	56,00	×1
✓ 13	20/9/2008	1st The Great Lake Walk	56,00	×1
✓ 14	28/10/2006	1st San Francisco One Day, 12h	52,30	×1
✓ 15	4/2/2006	28th Jed Smith Ultra Classic - 50 km Race	50,00	×1
✓ 16	26/3/2005	4th Pirates Cove Trail Run	50,00	×1
✓ 17	26/2/2005	1st Sequoia Trail Run	50,00	×1
✓ 18	5/2/2005	4th Woodside Trail Run 50K	50,00	×1
✓ 19	5/9/2004	10th Run On The Sly 50 km	50,00	×1
✓ 20	5/6/2004	4th Mount Diablo 50K	50,00	×1
✓ 21	3/1/2004	2nd Angel Island 50k	50,00	×1
✓ 22	17/5/2003	10th Bishop High Sierra Ultramarathons 50 km	50,00	×1
✓ 23	8/3/2003	14th Way Too Cool 50K Endurance Run	50,00	×1