Some ultras in Northern California (& Nevada) shorter than 100 miles
DateRaceDist.LocationClimb/Descent
12-Sep-15 Headlands 50m/75m Sausalito 10034'/10034'
13-Sep-15 Robinson Flat 50k Foresthill ?'/?'
19-Sep-15 Lovers Leap of Faith 50k Kyburz ?'/?'/?
20-Sep-15 Ohlone Wilderness 50k Fremont 8530'/8160'
20-Sep-15 Coastal 50k Stinson Beach 5090'/5090'
26-Sep-15 UROC 50k-100k Auburn 3067'/3046'-11463'/11442'
26-Sep-15 Stevens Creek 50k Cupertino 5000'/5000'
26-Sep-15 Berkeley Trail Adventure 50k Oakland 4500'/4500'
10-Oct-15 Dick Collins' Firetrails 50m Castro Valley 7820'/7840'
10-Oct-15 Euchre Bar Massacre 50mi Foresthill 20000'/20000'
10-Oct-15 Bizz Johnson 50k Susanville ?'/?'
10-Oct-15 Skyline to the Sea 50k Saratoga Gap 3000'/3000'
10-Oct-15 Lake Tahoe 50m/72m So. Lake Tahoe ?'/?'
10-Oct-15 Folsom Lake Ultra 68m Auburn 5646'/5631'
18-Oct-15 Overlook 50k Auburn ?'/?'
18-Oct-15 Coyote Ridge 50k Muir Beach 7130'/7130'
24-Oct-15 Stinson Beach 50k Stinson Beach 6498'/6498'
7-Nov-15 Lake Chabot 50k Castro Valley 2670'/2670'
7-Nov-15 Run in the Pines 50k Pollock Pines ?'/?'
14-Nov-15 Mt. Tam 50k Stinson Beach 7000'/7000'
15-Nov-15 Spooner's Cove 50k Los Osos 6400'/6400'
28-Nov-15 Quad Dipsea 28.4m Mill Valley 9276'/9276'
5-Dec-15 North Face 50k/50m Sausalito ?'/?'
5-Dec-15 Calero Run 50km San Jose ?'/?'
6-Dec-15 HST Fear & Loathing 50k/50m San Francisco 2739'/2743'
12-Dec-15 Rodeo Beach 50k Sausalito 5980'/5980'
12-Dec-15 Malibu Canyon 50k Calabasas 5940'/5940'
13-Dec-15 Woodside Ramble 50k Woodside 4530'/4530'
27-Dec-15 Woodside 50k Woodside 4530'/4530'
31-Dec-15 New Year's One Day 6hr/12hr/24hr San Francisco 0'/0'
(4-Jan-15) Epiphany Ultra 63k Oakland 2750'/2750'
(10-Jan-15) Fat Ass 50k Saratoga ?
(11-Jan-15) Crystal Springs 50k Woodside 4530'/4530'
16-Jan-16 Pacifica Foothills 50k Pacifica 7090'/7090'
(17-Jan-15) Steep Ravine 50k Stinson Beach 5770'/5770'
(24-Jan-15) Folsom South Side 50k/38m Folsom ?'/?'
30-Jan-16 Fort Ord/Ordnance 50k/100k Monterey ?'/?'
(7-Feb-15) Jed Smith 50k/50m Sacramento 540'/960'
(7-Feb-15) American Canyon 50k Auburn ?'/?'
(8-Feb-15) Golden Gate 50k Rodeo Beach 6320'/6320'
(21-Feb-15) Montara Mountain 50k Pacifica 6700'/6700'
20-Feb-16 Chabot Trail 50k Castro Valley ?'/?'
28-Feb-16 Lake Natoma 50k Folsom ?'/?'
(28-Feb-15) Salmon Falls 50k Pilot Hill 3500'/3500'
(1-Mar-15) Razorback 50k/50m San Martin ?'/?'
5-Mar-16 Way Too Cool 50k Cool 6113'/6107'
12-Mar-16 Marin Ultra Challenge 50k/50m Sausalito ?/?
(21-Mar-15) 4MPH Challenge ? Whiskeytown ?'/?'
(21-Mar-15) Folsom Lake 100k 100k Folsom ?'/?'
(22-Mar-15) Canyon Meadow 50k Oakland 3812'/3812'
2-Apr-16 American River 50m Sacramento 3474'/2139'
(4-Apr-15) Grizzly Peak 50k Berkeley 6760'/6760'
9-Apr-16 Lake Sonoma 50m Geyserville 10500'/10500'
(12-Apr-15) Woodside Ramble 50k Woodside 4610'/4610'
(18-Apr-15) Mokelumne River 50k/50m Lake Comanche ?'/?'
(19-Apr-15) Ruth Anderson 50k/50m/100k San Francisco 1450'/1450'
(19-Apr-15) Diablo Trails Challenge 50k Brentwood ?'/?'
(25-Apr-15) Sierra Azul Trail Challenge 50k Los Gatos ?'/?'
(25-Apr-15) Folsom Lake 50k Folsom 2030'/2030'
(2-May-15) Me-Ow! Double Marathon 52.4m Whiskeytown 20000'/20000'
(2-May-15) Armstrong Redwoods 50k Guerneville ?'/?'
(2-May-15) Run in the Pines 50k/50m Pollock Pines ?'/?'
(2-May-15) The Canyons 50k/100k Foresthill 9200'/9200'
14000'/14000'
7-May-16 Miwok Trail 100k Stinson Beach 11628'/11628'
(9-May-15) Gold Rush 50k/100k Folsom ?'/?'
(9-May-15) Cinderella 50k Oakland 5495'/5495'
14-May-16 Quicksilver 50k/100k San Jose ?'/?'
(16-May-15) Silver State 50k
50m
Reno, NV 5800'/6100'
9200'/9200'
(17-May-15) Horseshoe Lake 50k Palo Alto 4560'/4560'
22-May-16 Ohlone Wilderness 50k Fremont 8530'/8160'
(30-May-15) San Francisco 50m Sausalito 9565'/9565'
(13-Jun-15) Rodeo Valley 50k Sausalito 6000'/6000'
(13-Jun-15) Calero Park 50k/50m San Jose ?'/?'
(14-Jun-15) Big Basin 50k Los Gatos 5790'/5790'
(20-Jun-15) Canyon Meadow 50k Oakland 3812'/3812'
(20-Jun-15) Summer Solstice 6hr/12hr/24hr San Francisco ?'/?'
(4-Jul-15) Lovers Leap of Faith 50k/50m/100k Kyburz ?'/?'/?
(11-Jul-15) Golden Gate 50k Rodeo Beach 6320'/6320'
(12-Jul-15) Pacifica 50k Pacifica ?'/?'
(18-Jul-15) Tahoe Rim Trail 55k
50m
Lake Tahoe, NV 6895'/6895'
9894'/9894'
(19-Jul-15) SPASM Lake Chabot 50k Castro Valley 2670'/2670'
(26-Jul-15) San Lorenzo River 50k Santa Cruz 5175'/5175'
(26-Jul-15) Worth the Hurt 52m San Francisco ?'/?'
(1-Aug-15) Montana de Oro 50k Los Osos ?'/?'
(1-Aug-15) Echo Summit Trail Challenge 50k/50m/100k Echo Summit ?'/?'
6-Aug-16 Skyline 50k Castro Valley 4740'/4740'
(8-Aug-15) Santa Cruz 50k Santa Cruz ?'/?'
(8-Aug-15) Cool Moon 50m/100k Cool ?'/?'
(9-Aug-15) Crystal Springs 50k Woodside 4530'/4530'
(15-Aug-15) Run-de-Vous 50k/50m San Martin ?'/?'
(15-Aug-15) Cinderella 50k Oakland 5495'/5495'
(16-Aug-15) Run on the Sly 50k Pollock Pines 4075'/4075'
(22-Aug-15) Salt Point 50k Jenner ?'/?'
(22-Aug-15) Headwaters Ultra 50k Mount Shasta 5600'/5600'
27-Aug-16 Tamalpa Headlands 50K 50k Muir Beach 7300'/7300'
(29-Aug-15) Almaden Hills 50k San Jose ?'/?'
(29-Aug-15) Castle Peak 100k Truckee ?'/?'
(30-Aug-15) Diablo 50k Clayton 7990'/7990'
8-Oct-16 Bishop High Sierra 55k/100k Bishop ?'/?'

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).

"http://www.Run100s.com/sub100.htm" (updated: 8/31/15) StanJ@Run100s.com