Jon Gnass

Born : 1955 Cat. M70 Ultrarunner since 1994

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

57,2%

Rank quotient ?This runner's calculation uses 73 eligible race(s): Σ(rank − 1) = 8 698; Σ finishers = 15 217. 8 698 / 15 217 × 100 = 57.16%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed73

Km — ultra races5 501 km

> 100 km5

> 160 km5

Longest race160,9 km

20th Vermont 100 Mile Endurance Race — 19/7/2008

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Trail100,0%

Records

50 km4h49'08 100 km12h31'39 50 mi8h41'24 100 mi29h17'52

HISTORY

73 race(s)

Date		Race	Perf.	Rk
2025
19.07	55km	24th Tahoe Rim Trail 55km Endurance Run	9:05:46 h	101
2022
21.05	55km	26th Bishop High Sierra Ultramarathons 55 km	9:24:09 h	76
2019
18.08	49km	6th Anchorage RunFest - 49K Ultra	5:14:03 h	30
2016
08.10	50mi	34th Dick Collins Firetrails 50 Mile	11:10:33 h	62
18.09	50km	7th Flagline Trail Fest 50K	6:35:32 h	55
23.07	50mi	18th Siskiyou Out Back 50 Miles Trail Run	11:52:28 h	71
10.04	40mi	14th Peterson Ridge Rumble 40 Mile Trail Run	7:59:56 h	106
2015
12.04	40mi	13th Peterson Ridge Rumble 40 Mile Trail Run	7:24:45 h	76
2014
14.06	50km	1st Smith Rock Ascent 50K	6:31:53 h	57
2012
22.09	50km	3rd Flagline Trail Fest 50K	6:32:00 h	82
18.08	100km	11th Waldo 100K Trail Run	17:43:47 h	70
14.07	50km	14th Siskiyou Out Back 50 km Trail Run	6:12:14 h	120
2011
09.04	50mi	32nd American River 50 Mile Endurance Run	10:54:06 h	382
2010
05.06	50mi	14th Snow Peaks 50 Mile Trail Run	13:43:39 h	116
08.05	50km	15th McDonald Forest 50K Trail Run	6:39:49 h	128
10.04	50mi	31st American River 50 Mile Endurance Run	9:57:44 h	263
20.03	50km	18th Chuckanut 50K	6:42:31 h	247
2009
06.06	50mi	13th Snow Peaks 50 Mile Trail Run	15:03:47 h	172
2008
19.07	100mi	20th Vermont 100 Mile Endurance Race	29:24:10 h	142
10.05	50km	13th McDonald Forest 50K Trail Run	6:56:50 h	120
03.05	100km	13th Miwok 100k Trail race	13:20:29 h	165
05.04	50mi	29th American River 50 Mile Endurance Run	10:11:54 h	242
23.02	50km	8th Hagg Lake Trail Runs 50K	5:42:32 h	72
2007
18.08	100km	6th Where's Waldo 100K Ultramarathon	16:47:36 h	71
21.07	100mi	6th Tahoe Rim Trail 100M Endurance Runs	32:42:21 h	52
02.06	50mi	11th Snow Peaks 50 Mile Trail Run	13:21:09 h	94
19.05	50km	12th McDonald Forest 50K Trail Run	6:33:29 h	106
05.05	100km	12th Miwok 100k Trail race	14:55:15 h	171
14.04	50mi	28th American River 50 Mile Endurance Run	10:46:10 h	322
2006
09.09	50km	19th McKenzie River 50 km Trail Run	6:01:59 h	71
19.08	100km	5th Where's Waldo 100K Ultramarathon	17:15:03 h	40
15.07	50km	8th Siskiyou Out Back 50 km Trail Run	6:29:37 h	74
13.05	50km	11th McDonald Forest 50K Trail Run	6:29:32 h	91
09.04	60km	4th Peterson Ridge Rumble 60 km Trail Run	6:01:47 h	53
2005
20.08	100km	4th Where's Waldo 100K Ultramarathon	16:29:48 h	22
16.07	50mi	4th Tahoe Rim Trail 50M Endurance Runs	13:14:24 h	76
04.06	50mi	9th Snow Peaks 50 Mile Trail Run	14:50:34 h	117
14.05	50km	10th McDonald Forest 50K Trail Run	7:41:15 h	132
12.03	50km	16th Way Too Cool 50K Endurance Run	5:58:34 h	212
2004
11.09	50km	17th McKenzie River 50 km Trail Run	5:50:29 h	54
31.07	50mi	6th Mt. Hood 50 Mile Trail Run	9:30:50 h	22
15.05	50mi	19th Silver State 50 Miles	11:24:29 h	30
18.04	35mi	2nd Peterson Ridge Rumble 35 Mile Trail Run	6:46:12 h	62
03.04	50mi	25th American River 50 Mile Endurance Run	9:12:28 h	104
2003
31.05	50mi	2nd Old Dominion Memorial Day Race 50 Mile	9:51:00 h	11
03.05	100km	8th Miwok 100k Trail race	13:54:13 h	122
05.04	50mi	24th American River 50 Mile Endurance Run	9:54:48 h	247
08.03	50km	14th Way Too Cool 50K Endurance Run	5:55:23 h	270
2002
29.06	100mi	29th Western States 100 Mile Endurance Run	29:18:16 h	220
04.05	100km	7th Miwok 100k Trail race	14:26:40 h	145
06.04	50mi	23rd American River 50 Mile Endurance Run	11:27:00 h	357
2001
08.09	100mi	22nd Wasatch Front 100 Mile	33:30:15 h	84
21.07	50mi	1st Tahoe Rim Trail 50M Endurance Runs	12:10:11 h	37
14.07	50km	3rd Siskiyou Out Back 50 km Trail Run	5:19:16 h	23
10.06	50km	3rd Bendistillery 50k	4:49:08 h	14
02.06	50mi	5th Snow Peaks 50 Mile Trail Run	12:48:19 h	82
05.05	100km	6th Miwok 100k Trail race	12:31:39 h	65
07.04	50mi	22nd American River 50 Mile Endurance Run	9:25:39 h	143
10.03	50km	12th Way Too Cool 50K Endurance Run	5:31:47 h	167
2000
09.09	50km	13th McKenzie River 50 km Trail Run	5:38:37 h	49
12.08	50mi	2nd Mt. Hood 50 Mile Trail Run	10:03:47 h	23
29.04	50km	5th McDonald Forest 50K Trail Run	7:10:52 h	129
01.04	50mi	21st American River 50 Mile Endurance Run	11:19:02 h	306
11.03	50km	11th Way Too Cool 50K Endurance Run	6:10:46 h	244
1999
11.09	50km	12th McKenzie River 50 km Trail Run	5:41:25 h	39
15.08	50km	1st Bendistillery 50k	4:55:19 h	34
1998
14.03	50km	9th Way Too Cool 50K Endurance Run	5:57:03 h	178
1996
06.04	50mi	17th American River 50 Mile Endurance Run	9:11:55 h	169
1995
21.08	100mi	13th Leadville Trail 100 Mile	29:17:52 h	92
13.05	50mi	2nd Bishop High Sierra Ultramarathons 50 Miles	9:52:11 h	18
01.04	50mi	16th American River 50 Mile Endurance Run	8:41:24 h	137
1994
02.04	50mi	15th American River 50 Mile Endurance Run	9:55:37 h	300
12.03	50km	5th Way Too Cool 50K Endurance Run	5:28:02 h	135

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	19/7/2008	20th Vermont 100 Mile Endurance Race	160,93	×3
✓ 2	21/7/2007	6th Tahoe Rim Trail 100M Endurance Runs	160,93	×3
✓ 3	29/6/2002	29th Western States 100 Mile Endurance Run	160,93	×3
✓ 4	8/9/2001	22nd Wasatch Front 100 Mile	160,93	×3
✓ 5	21/8/1995	13th Leadville Trail 100 Mile	160,93	×3
✓ 6	18/8/2012	11th Waldo 100K Trail Run	100,00	×1
✓ 7	3/5/2008	13th Miwok 100k Trail race	100,00	×1
✓ 8	18/8/2007	6th Where's Waldo 100K Ultramarathon	100,00	×1
✓ 9	5/5/2007	12th Miwok 100k Trail race	100,00	×1
✓ 10	19/8/2006	5th Where's Waldo 100K Ultramarathon	100,00	×1
✓ 11	20/8/2005	4th Where's Waldo 100K Ultramarathon	100,00	×1
✓ 12	3/5/2003	8th Miwok 100k Trail race	100,00	×1
✓ 13	4/5/2002	7th Miwok 100k Trail race	100,00	×1
✓ 14	5/5/2001	6th Miwok 100k Trail race	100,00	×1
✓ 15	8/10/2016	34th Dick Collins Firetrails 50 Mile	80,47	×1
✓ 16	23/7/2016	18th Siskiyou Out Back 50 Miles Trail Run	80,47	×1
✓ 17	9/4/2011	32nd American River 50 Mile Endurance Run	80,47	×1
✓ 18	5/6/2010	14th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 19	10/4/2010	31st American River 50 Mile Endurance Run	80,47	×1
✓ 20	6/6/2009	13th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 21	5/4/2008	29th American River 50 Mile Endurance Run	80,47	×1
✓ 22	2/6/2007	11th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 23	14/4/2007	28th American River 50 Mile Endurance Run	80,47	×1
✓ 24	16/7/2005	4th Tahoe Rim Trail 50M Endurance Runs	80,47	×1
✓ 25	4/6/2005	9th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 26	31/7/2004	6th Mt. Hood 50 Mile Trail Run	80,47	×1
✓ 27	15/5/2004	19th Silver State 50 Miles	80,47	×1
✓ 28	3/4/2004	25th American River 50 Mile Endurance Run	80,47	×1
✓ 29	31/5/2003	2nd Old Dominion Memorial Day Race 50 Mile	80,47	×1
✓ 30	5/4/2003	24th American River 50 Mile Endurance Run	80,47	×1
✓ 31	6/4/2002	23rd American River 50 Mile Endurance Run	80,47	×1
✓ 32	21/7/2001	1st Tahoe Rim Trail 50M Endurance Runs	80,47	×1
✓ 33	2/6/2001	5th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 34	7/4/2001	22nd American River 50 Mile Endurance Run	80,47	×1
✓ 35	12/8/2000	2nd Mt. Hood 50 Mile Trail Run	80,47	×1
✓ 36	1/4/2000	21st American River 50 Mile Endurance Run	80,47	×1
✓ 37	6/4/1996	17th American River 50 Mile Endurance Run	80,47	×1
✓ 38	13/5/1995	2nd Bishop High Sierra Ultramarathons 50 Miles	80,47	×1
✓ 39	1/4/1995	16th American River 50 Mile Endurance Run	80,47	×1
✓ 40	2/4/1994	15th American River 50 Mile Endurance Run	80,47	×1
✓ 41	10/4/2016	14th Peterson Ridge Rumble 40 Mile Trail Run	64,37	×1
✓ 42	12/4/2015	13th Peterson Ridge Rumble 40 Mile Trail Run	64,37	×1
✓ 43	9/4/2006	4th Peterson Ridge Rumble 60 km Trail Run	60,00	×1
✓ 44	18/4/2004	2nd Peterson Ridge Rumble 35 Mile Trail Run	56,33	×1
✓ 45	19/7/2025	24th Tahoe Rim Trail 55km Endurance Run	55,00	×1
✓ 46	21/5/2022	26th Bishop High Sierra Ultramarathons 55 km	55,00	×1
✓ 47	18/9/2016	7th Flagline Trail Fest 50K	50,00	—
✓ 48	14/6/2014	1st Smith Rock Ascent 50K	50,00	—
✓ 49	22/9/2012	3rd Flagline Trail Fest 50K	50,00	—
✓ 50	14/7/2012	14th Siskiyou Out Back 50 km Trail Run	50,00	—
51	8/5/2010	15th McDonald Forest 50K Trail Run	50,00	—
52	20/3/2010	18th Chuckanut 50K	50,00	—
53	10/5/2008	13th McDonald Forest 50K Trail Run	50,00	—
54	23/2/2008	8th Hagg Lake Trail Runs 50K	50,00	—
55	19/5/2007	12th McDonald Forest 50K Trail Run	50,00	—
56	9/9/2006	19th McKenzie River 50 km Trail Run	50,00	—
57	15/7/2006	8th Siskiyou Out Back 50 km Trail Run	50,00	—
58	13/5/2006	11th McDonald Forest 50K Trail Run	50,00	—
59	14/5/2005	10th McDonald Forest 50K Trail Run	50,00	—
60	12/3/2005	16th Way Too Cool 50K Endurance Run	50,00	—
61	11/9/2004	17th McKenzie River 50 km Trail Run	50,00	—
62	8/3/2003	14th Way Too Cool 50K Endurance Run	50,00	—
63	14/7/2001	3rd Siskiyou Out Back 50 km Trail Run	50,00	—
64	10/6/2001	3rd Bendistillery 50k	50,00	—
65	10/3/2001	12th Way Too Cool 50K Endurance Run	50,00	—
66	9/9/2000	13th McKenzie River 50 km Trail Run	50,00	—
67	29/4/2000	5th McDonald Forest 50K Trail Run	50,00	—
68	11/3/2000	11th Way Too Cool 50K Endurance Run	50,00	—
69	11/9/1999	12th McKenzie River 50 km Trail Run	50,00	—
70	15/8/1999	1st Bendistillery 50k	50,00	—
71	14/3/1998	9th Way Too Cool 50K Endurance Run	50,00	—
72	12/3/1994	5th Way Too Cool 50K Endurance Run	50,00	—
73	18/8/2019	6th Anchorage RunFest - 49K Ultra	49,00	—