Ultras - An ultramarathon is any running event longer than a marathon (i.e. 26.2 miles). An ultrarun is any unusually difficult running event, regardless of distance (e.g. Pikes Peak Marathon). These ultra statistics are updated infrequently, but if you send updates to StanJ@Run100s.com, you should see them appear soon.

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100 mile events in North America (in chronological order) (Map of the start lines)
FirstCut.Climb/CourseWinning Year of
DateRace NameYear(hrs)DescentRecordTimeStartersFinishersPercentResults
1/13-14/18 HURT(HI) 2001 36 24935'/24935' 19:35:00 21:52:16 125 54 43% '17
1/13-14/18 Long Haul(FL) 2011 30 ?'/?' 13:18:58 18:46:17 44 29 66% '16
1/20-21/18 Coldwater Rumble(AZ) 2011 32 4400'/4400' 15:09:52 18:43:25 __ 27 __% '17
1/28-29/17 Beast of Burden - Winter(NY) 2010 30 ?'/?' 14:47:30 16:37:14   18  % '16
1/28-29/17 Skydive(FL) 2014 32 0'/13500' 18:47:47 18:47:47 12 8 67% '16
2/4-5/17 Rocky Raccoon(TX) 1993 30 5375'/5375' 12:44:33 13:45:03 358 240 67% '16
2/4-5/17 Red Dirt(LA) 2017 34 ?'/?' __:__:__ __:__:__ __ __ __% '17
2/5-8/17 Yukon Arctic(CAN) 2003 72 ?'/?' 21:41:00 23:28:00 __ 18 __% '14
2/11-12/17 Iron Horse(FL) 2011 28 ?'/?' 13:14:31 15:54:09   21  % '16
2/11-12/17 Lone Star(TX) 2017 36 20000'/20000' __:__:__ __:__:__ __ __ __% '17
2/18-20/17 Susitna(AK) 2004 48 ?'/?' 20:25:35 20:25:35 __ 28 __% '16
2/18-19/17 Jackpot(NV) 2014 30 4000'/4000' 15:40:39 16:48:32 31 __% '16
2/18-19/17 Destin Beach(FL) 2015 27 ?'/?' 10:29:39 10:29:39 19 5 66% '16
2/9-10/18 Orcas Island(WA) 2016 30 30000'/30000' 19:19:53 19:19:53 __ 49 __% '16
2/24-25/17 LOViT(AR) 2014 34 20000'/20000' 21:52:34 22:20:16 27 21 78% '17
2/25-26/17 The Dunes(FL) 2017 30 ?'/?' __:__:__ __:__:__ __ __ __% '17
2/25-26/17 Soggy Bottom(MO) 2016 35 23553'/23553' 26:29:50 26:29:50 9 3 33% '16
3/11-12/17 Coyote Backbone Trail(CA) 2017 30 '/' __:__:__ __:__:__ __ __ __% '17
3/11-12/17 Vegas Moonlight(NV) 2016 30 800'/800' __:__:__ __:__:__ __ __ __% '16
3/17-18/17 Buffalo Run(UT) 2006 30.5 7670'/7670' 14:34:00 17:12:00 __ 44 __% '15
3/17-18/18 The Pistol Ultra(TN) 2013 30 1350'/1350' 15:33:46 15:33:46 __ 78 __% '16
3/18-19/17 Lake Martin(AL) 2013 30 13400'/13400' 16:56:57 16:56:57 19 % '16
3/25-26/17 Fort Clinch(FL) 2011 30 4500'/4500' 17:59:42 18:23:35 __ 20 __% '15
3/23-24/17 Pickled Feet(ID) 2012 32 600'/600' 17:23:56 20:40:04 24 13 54% '15
3/24-25/17 Badger Mt. Challenge(WA) 2011 32 14000'/14000' 16:55:50 17:32:00 71 21 30% '17
3/24-25/18 Prairie Spirit(KS) 2013 30 ?'/?' 15:10:13 18:16:33 55 35 64% '16
3/26-27/17 White Mountains(AK) 2010 40 7366'/7367' 22:21:00 22:21:00 _ 11 __% '15
4/1-2/17 New Jersey(NJ) 2010 29 ?'/?' 16:21:04 26:31:29 2 1 50% '16
4/7-8/18 Umstead(NC) 1995 30 8000'/8000' 13:11:40 14:05:50 ___ 143 __% '17
4/7-8/17 Zumbro(MN) 2009 34 ?'/?' 18:04:00 20:43:45 52 % '16
4/7-8/17 Zion(UT) 2012 32 7850'/7850' 16:49:53 17:29:12 186 136 73% '15
4/8-9/17 Beyond Limits(CA) 2013 31 ?'/?' 17:25:50 18:59;55 42 16 38% '15
4/8-9/17 Lumberjack(WA) 2010 30 12000'/12000' 17:10:00 17:34:25 12 11 92% '16
4/8-9/17 Potawatomi(IL) 2004 34 16000'/16000' 17:40:13 19:36:21 39 % '15
4/8-9/17 Red Rock & Beyond(NV) 2016 32 '/' __:__:__ __:__:__     __% '16
4/14-16/17 Wild Sebastian(FL) 2013 32 ?'/?' 19:20:47 26:01:55 6 3 50% '14
4/19-20/18 Double Top(GA) 2012 34 17500'/17500' 24:10:00 25:53:00 8 3 38% '15
4/22-23/17 Razorback(CA) 2013 35 ?'/?' 17:38:30 18:11:03 __ 11 __% '15
4/28-29/17 Salt Flats(UT) 2011 36 ?'/?' 15:04:45 17:28:54 28 % '16
4/29-30/17 Indiana Trail(IN) 2013 30 8000'/8000' 15:04:55 15:04:55 205 80 39% '16
4/29-30/17 C&O Canal(MD) 2013 30 800'/800' 14:32:01 14:32:01 144 93 65% '16
5/5-6/17 Peak(VT) 2015 34 24000'/24000' 26:43:__ 26:43:__ 10 3 30% '16
5/6-7/17 Massanutten Mt.(VA) 1995 36 19000'/19000' 17:40:45 19:36:25 199 120 60% '15
5/12-13/17 Spruce Woods(CAN) 2016 32 9000'/9000' 19:43:42 20:39:34 12 10 83% '15
5/18-20/18 Cruel Jewel(GA) 2013 48 33000'/33000' 23:57:48 23:57:48 106 87 82% '16
5/19-21/17 Born To Run(CA) 2011 42 11500'/11500' 13:42:52 17:10:07   26  % '15
5/20-21/17 KEYS100(FL) 2008 30 ?'/?' 13:42:52 16:17:01 144 97 67% '15
5/27-28/17 Pigtails Challenge(WA) 2012 32 ?'/?' 16:58:__ 22:24:08   9 __% '17
5/27-28/17 Nanny Goats(CA) 2009 28 ?'/?' 17:41:24 18:00:26 78 47 60% '14
5/27-28/17 Sulphur Springs(CAN) 2001 30 13900'/13900' 15:37:24 17:50:36 55 39 71% '15
5/27-28/17 Booneville Backroads Ultra(IA) 2015 36 ?'/?' 17;25;27 18:48:10 __ 24 __% '17
6/2-3/18 Hell Hole Hundred(SC) 2014 30 ?'/?' 22:26:25 22:26:25 __ 8 __% '17
6/2-3/18 Old Dominion(VA) 1979 28 14000'/14000' 15:10:13 18:58:55 48 30 63% '17
6/3-4/17 Kettle Moraine(WI) 1996 32 12005'/12005' 15:17:32 18:26:59 ___ 101 __% '17
6/3-4/17 Yankee Springs(MI) 2016 31 ?'/?' 23:25:30 23:25:30 7 __% '17
6/9-10/17 San Diego(CA) 2001 32 13165'/13180' 16:38:59 16:59:48 261 173 66% '17
6/10-11/17 Lighthouse(MI) 2017 30 ?'/?' 16:50:43 16:50:43 __ 38 __% '17
6/16-17/17 Bighorn(WY) 1993 34 ?'/?' 18:29:37 21:30:08 373 175 47% '17
6/16-17/17 Bryce Canyon(UT) 2013 34 14000'/14000' 17:58:34 19:30:25      % '16
6/17-18/17 Mohican Trail(OH) 1990 32 12862'/12862' 15:11:35 16:51:22 ___ 121 __% '16
6/17-18/17 Angel Fire(NM) 2012 32 ?'/?' 25:44:58 25:44:58 5 2 40% '16
6/17-18/17 The Great New York(NY) 2012 32 ?'/?' 15;19:18 16:12:57 _ 34 __% '16
6/17-18/17 Gaspesia(CAN) 2017 30 12664'/13025' __:__:__ __:__:__ __ __ __% '17
6/23-24/17 Black Hills(SD) 2011 32 16231'/16231' 18:58:23 19:05:26 109 64 59% '16
6/24-25/17 Western States(CA) 1974 30 18090'/22970' 14:46:44 15:39:36 353 280 79% '16
7/1-2/17 Lover's Leap of Faith(CA) 2017 35 ?'/?' __:__:__ __:__:__ __ __ __% '17
7/8-9/17 Sinister 7(CAN) 2008 30 18658'/18656' 18:21:47 18:21:47 __ __ __% '15
7/7-8/18 Honey Badger(KS) 2014 36 ?'/?' 16:54:21 24:56:30 __ 10 __% '16
7/8-9/17 Cry Me A River!(IL) 2016 34 20000'/20000' __:__:__ __:__:__ __ __ __% '16
7/8-9/17 Canal Corridor(OH) 2017 30 ?'/?' __:__:__ __:__:__ __ __ __% '17
7/14-16/17 Hardrock(CO) 1992 48 33992'/33992' 22:41:35 24:32:20 145 126 87% '17
7/14-16/17 Santa Barbara(CA) 2011 48 24147'/24147' 16:32:__ 22:46:36 39 % '16
7/15-16/17 Vermont(VT) 1989 30 14160'/14160' 14:47:35 15:12:28   265  % '17
7/15-16/17 Tahoe Rim Trail(NV) 2001 35 19788'/19788' 17:38:35 18:29:09 210 150 71% '17
7/28-29/17 High Lonesome(CO) 2017 36 ?'/?' __:__:__ __:__:__ __ __ __% '17
7/29-30/17 Burning River(OH) 2007 30 ?'/?' 14:25:14 17:48:42 184 135 73% '16
7/29-30/17 Grand Mesa(CO) 2010 34 13000'/13000' 20:23:00 22:22:24 16 8 50% '15
7/29-30/17 Viaduct Trail(PA) 2008 30 4000'/4000' 15:31:__ 17:35:__ 23 12 52% '17
7/29-30/17 Maah Daah Hey(ND) 2017 30 11975'/11975' 26:11:46 26:11:46 __ __ __% '16
8/4-6/17 Ouray(CO) 2014 52 41862'/41862' __:__:__ __:__:__ 45 9 20% '15
8/5-6/17 Angeles Crest(CA) 1986 33 21610'/26700' 17:35:48 20:04:12 178 114 64% '17
8/5-6/17 Beast of Burden - Summer(NY) 2010 24 ?'/?' 14:58:09 21:13:49 20 % '16
8/5-6/17 Silverheels(CO) 2015 36 17300'/17300' 21:12:__ 23:19:__ 33 19 58% '16
8/11-12/17 Resurrection Pass(AK) 2003 30 9020'/8737' 18:57:40 18:57:40 __ 12 __% '16
8/12-13/17 Cool Moon(CA) 2011 33 16000'/16000' 22:41:12 24:58:00 4 % '16
8/12-13/17 Eastern States(PA) 2014 36 19288'/19301' 20:30:36 20:30:36 196 66 45% '16
8/18-19/17 Anchor Down(RI) 2016 24 2286'/2286' 23:26:09 23:26:09 __ 7 __% '16
8/19-20/17 Leadville Trail(CO) 1983 30 15600'/15600' 15:42:59 16:22:39 ~650 332 ~51% '16
8/19-20/17 Lean Horse(SD) 2005 30 3524'/3524' 15:14:15 18:13:06 __ 44 __% '15
8/19-20/17 Run-de-Vous(CA) 2011 32 4250'/4250' 16:55:16 19:49:01 __ 9 __% '16
8/19-20/17 Habanero Hundred(TX) 2015 30 ?'/?' 24:20:28 24:20:28 13 % '16
8/25-26/17 Kodiak(CA) 2013 36 17500'/17500' 19:58:00 19:58:00 77 41 64% '16
8/26-27/17 Cascade Crest(WA) 1999 33 22250'/22250' 17:56:50 18:38:52 164 127 77% '16
8/26-27/17 Shawnee Hills(IL) 2017 32 ?'/?' __:__:__ __:__:__ __ __ __% '17
9/2-3/17 Wildcat(FL) 2015 40 300'/300' 18:09:59 22:00:26 21 17 81% '16
9/8-9/17 Wasatch Front(UT) 1980 36 26882'/26131' 18:30:55 21:13:58 334 215 64% '16
9/8-9/17 Superior Sawtooth(MN) 1993 38 20000'/21000' 19:30:37 20:24:00 217 138 64% '16
9/8-9/17 Lost Soul(CAN) 2001 37 ?'/?' 19:23:00 22:05:37 __ 38 __% '16
9/8-9/17 Run Woodstock(MI) 2009 30 7806'/7806' 16:13:56 20:18:01 135 71 53% '16
9/9-10/17 Haliburton For.(CAN) 1993 30 12500'/12500' 15:40:35 20:28:20 22 % '15
9/9-10/17 Headlands(CA) 2007 33 20068'/20068' 16:56:31 16:56:31 34 % '16
9/9-10/17 Pine to Palm(OR) 2010 34 22000'/22000' 17:19:00 18:28:20 142 82 58% '16
9/9-10/17 Hawk Hundred(KS) 2011 32 ?'/?' 18:47:24 22:23:01 __ 25 __% '16
9/9-10/17 Pine Creek Challenge(PA) 2012 30 ?'/?' 16:12:03 17:51:10 22 % '16
9/9-10/17 Run Rabbit Run(CO) 2012 32 20191'/20191' 17:15:20 18:05:18 252 153 61% '15
9/16-17/17 Plain(WA) 1998 36 25365'/26766' 22:21:40 29:22:00 13 % '16
9/16-17/17 Mark Twain(MO) 2012 32 10000'/10000' 18:21:38 23:17:10 28 11 39% '16
9/16-17/17 IMTUF(ID) 2012 36 21000'/21000' 19:52:36 19:52:36 79 % '16
9/16-17/17 Mogollon Monster(AZ) 2012 36 23000'/23000' 21:34:00 23:16:31 33 % '16
9/16-18/17 Baldy Marathon(CA) 2016 60 56000'/56000' __:__:__ __:__:__ 6 0 0% '16
9/23-24/17 The Georgia Jewel(GA) 2006 36 16053'/16053' 20:22:23 27:00:03 __ 6 __% '16
9/23-24/17 Stagecoach(AZ) 2013 30 7000'/7000' 17:37:25 17:42:17 41 29 71% '16
9/23-24/17 Mountain Lakes(OR) 2014 30 10800'/10800' 16:15:16 16:32:40 145 108 74% '16
9/29-30/17 The Bear(UT) 1999 36 21986'/21986' 17:50:15 19:33:30 330 167 51% '16
9/29-30/17 Yeti(VA) 2015 30 3000'/3000' 14:42:00 14:42:00 109 82 75% '16
9/30-10/1/17 Iron Horse Ultra(CAN) 2011 27 ?'/?' 15:47:00 16:07:__ 12 9 75% '15
9/30-10/1/17 Children of the Cane(LA) 2015 30 200'/200' 18:04:55 18:04:55 10 7 70% '15
9/30-10/1/17 Blazing 7s(TX) 2016 30 ?'/?' 20:36:07 20:36:07 __ 8 __% '16
10/7-8/17 Arkansas Trav.(AR) 1991 30 12086'/12106' 15:36:33 17:23:33 151 98 65% '16
10/7-8/17 Cloudsplitter(VA) 2014 40 26344'/26344' 21:07:56 25:32:37 38 % '16
10/6-8/17 Grindstone(VA) 2008 38 23200'/23200' 17:13:04 20:24:04 ___ 162 __% '15
10/7-8/17 Tesla Hertz(NY) 2013 30 ?'/?' 19:22:08 20:51:45 __ 11 __% '16
10/7-8/17 Hennepin Hundred(IL) 2015 30 180'/299' 14:22:59 14:22:58 98 76 78% '16
10/7-8/17 Bromont Ultra(CAN)   34 21250'/21250' 21:01:25 21:01:25 32 20 63% '15
10/7-8/17 Farmdale Trail(IL)   32 '/' 22:42:43 22:42:43 23 11 48% '15
10/14-15/17 Heartland(KS) 2000 30 6000'/6000' 14:26:43 16:37:01 __ 48 % '16
10/14-15/17 Oil Creek(PA) 2009 32 17785'/17785' 17:04:51 18:17:01 98 % '16
10/21-22/17 Wawayanda Wonderful(NJ)   30 11200'/11200' __:__:__ __:__:__ __ __ __% '16
10/14-15/17 No Business(KY) 2017 30 11200'/11200' __:__:__ __:__:__ __ __ __% '17
10/20-21/17 Pony Express Trail(UT)   30 3000'/3000' 15:06:27 16:31:41 35 24 69% '16
10/21-22/17 Uwharrie(NC)   36 23000'/23000' 25:04:43 25:04:43 37 22 59% '15
10/21-22/17 Pumpkin Holler(OK) 2011 30 ?'/?' 16:47:17 23:45:52 __ 20 __% '16
10/21-23/17 Running Dead(GA) 2013 30 0'/0' 20:05:00 20:05:00 11 5 45% '15
10/21-22/17 Ghost Train(NH)   30 ?'/?' 14:51:21 14:51:21 __ 42 __% '16
10/21-22/17 Firewater(TN) 2015 31 ?'/?' 24:48:23 26:46:00 12 5 42% '16
10/28-29/17 Javelina Jundred(AZ) 2003 30 5000'/5000' 13:30:28 13:30:28 574 285 50% '16
10/28-29/17 Cactus Rose(TX) 2007 36 7318'/7318' 17:34:08 21:08:30 40 47% '14
10/28-29/17 Rails-to-Trails(KS)   30 ?'/?' 14:13:09 14:13:09 __ 31 __% '15
11/4-5/17 Rio del Lago(CA) 2000 30 12000'/12000' 15:31:14 15:33:31 293 213 73% '16
11/4-5/17 Pinhoti(AL) 2008 30 14500'/14500' 16:24:15 16:24:15 232 144 62% '16
11/4-5/17 Ozark(MO) 2010 32 13500'/13500' 17:44:37 19:51:18 53 % '15
11/4-5/17 tBunk(WI) 2013 30 ?'/?' 16:55:18 18:51:00 17 % '16
11/4-5/17 Dinosaur Valley(TX) 2014 33 10000'/10000' 22:35:11 25:04:41 13 % '16
11/11-12/17 Cottonmouth(FL) 2016 30 ?'/?' __:__:__ __:__:__ __ __ __% '17
11/11-12/17 Tunnel Hill(IL)   30 ?'/?' 12:52:53 12:52:53 __ 97 __% '15
11/12-13/16 Chimera(CA)   40 21391'/21396' 16:52:08 18:59:53 ___ 47 __% '15
11/25-26/17 Saint Sebastian(FL) 2016 30 ?'/?' __:__:__ __:__:__ __ __ __% '16
12/2-3/17 Devil Dog(VA) 2016 32 10250'/10250' 17:35:06 17:35:06 109 42 39% '16
12/9-10/17 Brazos Bend(TX) 2014 30 120'/120' 14:47:02 14:47:02 __ 60 __% '16
12/9-10/17 Daytona(FL) 2016 30 ?'/?' 14:41:50 14:41:50 ___ 90 __% '16
12/9-10/17 Hitchcock(IA) 2016 32 19040'/19040' 19:16:38 19:16:38 __ 18 __% '16
12/9-10/17 Blood Rock(AL) 2017 __ 20000'/20000' __:__:__ __:__:__ __ __ __% '17
12/16-17/17 Houston(TX) 2012 30 ?'/?' 18:11:13 19:56:50 _ 6 __% '16

I've tried to show the most recent results of each race.

"http://www.Run100s.com/ultra.htm" (updated: 8/15/17) StanJ@Run100s.com