Some ultras in Northern California (& Nevada) shorter than 100 miles
DateRaceDist.LocationClimb/Descent
30-Apr-16 Sierra Azul Trail Challenge 50k Los Gatos ?'/?'
1-May-16 Leoni Meadows 50k Grizzly Flats ?'/?'
7-May-16 Miwok Trail 100k Stinson Beach 11628'/11628'
7-May-16 The Canyons 50k/100k Foresthill 9200'/9200' - 14000'/14000'
7-May-16 Horseshoe Lake 50k Palo Alto 4560'/4560'
7-May-16 Armstrong Redwoods 50k Guerneville ?'/?'
14-May-16 Quicksilver 50k/100k San Jose ?'/?'
14-May-16 Gold Rush 50k/100k Folsom ?'/?'
14-May-16 Cinderella 50k Oakland 5495'/5495'
14-May-16 Run in the Pines 50k/50m Pollock Pines ?'/?'
21-May-156 Silver State 50k
50m
Reno, NV 5800'/6100' - 9200'/9200'
22-May-16 Ohlone Wilderness 50k Fremont 8530'/8160'
4-Jun-16 Calero Run 50k/50m San Jose ?'/?'
11-Jun-16 Rodeo Valley 50k Sausalito 6000'/6000'
12-Jun-16 Big Basin 50k Los Gatos 5790'/5790'
18-Jun-16 Canyon Meadow 50k Oakland 3812'/3812'
(20-Jun-15) Summer Solstice 6hr/12hr/24hr San Francisco ?'/?'
26-Jun-16 San Lorenzo River 50k Santa Cruz 5175'/5175'
(4-Jul-15) Lovers Leap of Faith 50k/50m/100k Kyburz ?'/?'/?
9-Jul-16 Golden Gate 50k Rodeo Beach 6320'/6320'
9-Jul-16 Dirty Dozen 6hr/12hr Pinole ?'/?'
10-Jul-16 Pacifica 50k Pacifica ?'/?'
17-Jul-16 SPASM Lake Chabot 50k Castro Valley 2670'/2670'
(18-Jul-15) Tahoe Rim Trail 55k
50m
Lake Tahoe, NV 6895'/6895' - 9894'/9894'
(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'
7-Aug-16 Crystal Springs 50k Woodside 4530'/4530'
13-Aug-16 Cinderella 50k Oakland 5495'/5495'
13-Aug-16 Cool Moon 50m/100k Cool ?'/?'
(15-Aug-15) Run-de-Vous 50k/50m San Martin ?'/?'
(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'
27-Aug-16) Diablo 50k Clayton 7990'/7990'
(29-Aug-15) Almaden Hills 50k San Jose ?'/?'
(29-Aug-15) Castle Peak 100k Truckee ?'/?'
10-Sep-16 Headlands 50m/75m Sausalito 10034'/10034'
(13-Sep-15) Robinson Flat 50k Foresthill ?'/?'
18-Sep-16 Coastal 50k Stinson Beach 5090'/5090'
(19-Sep-15) Lovers Leap of Faith 50k Kyburz ?'/?'/?
24-Sep-16 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'
8-Oct-16 Bishop High Sierra 55k/100k Bishop ?'/?'
8-Oct-16 Bizz Johnson 50k Susanville ?'/?'
(10-Oct-15) Dick Collins' Firetrails 50m Castro Valley 7820'/7840'
(10-Oct-15) Euchre Bar Massacre 50mi Foresthill 20000'/20000'
(10-Oct-15) Skyline to the Sea 50k Saratoga Gap 3000'/3000'
(10-Oct-15) Folsom Lake Ultra 100k Auburn 6228'/6228'
(10-Oct-15) Lake Tahoe 50m/72m So. Lake Tahoe ?'/?'
15-Oct-16 Overlook 50k Auburn ?'/?'
16-Oct-16 Coyote Ridge 50k Muir Beach 7130'/7130'
(24-Oct-15) Eldrith Gosney's Pure Ultra 50k Mill valley 6498'/6498'
5-Nov-16 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'
26-Nov-16 Quad Dipsea 28.4m Mill Valley 9276'/9276'
4-Dec-16 HST Fear & Loathing 50k/50m San Francisco 2739'/2743'
(5-Dec-15) North Face 50k/50m Sausalito ?'/?'
(5-Dec-15) Calero Run 50km San Jose ?'/?'
(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-16 New Year's One Day 6hr/12hr/24hr San Francisco 0'/0'
(3-Jan-16) Epiphany Ultra 63k Oakland 2750'/2750'
(9-Jan-16) Fat Ass 50k Saratoga ?
(16-Jan-16) Pacifica Foothills 50k Pacifica 7090'/7090'
(16-Jan-16) Steep Ravine 50k Stinson Beach 5770'/5770'
(23-Jan-16) Crystal Springs 50k Woodside 4530'/4530'
(30-Jan-16) Folsom Lake Sweet Water 50k Folsom ?'/?'
4-Feb-17 Jed Smith 50k/50m Sacramento 540'/960'
(6-Feb-16) American Canyon 50k Auburn ?'/?'
(6-Feb-16) Golden Gate 50k Rodeo Beach 6320'/6320'
(6-Feb-16) Fort Ord/Ordnance 50k/100k Monterey ?'/?'
(20-Feb-16) Montara Mountain 50k Pacifica 6700'/6700'
(20-Feb-16) Chabot Trail 50k Castro Valley ?'/?'
(27-Feb-16) Salmon Falls 50k Pilot Hill 3500'/3500'
4-Mar-17 Way Too Cool 50k Cool 6113'/6107'
(5-Mar-16) Razorback 50k/50m San Martin ?'/?'
(12-Mar-16) Marin Ultra Challenge 50k/50m Sausalito 6900'/6900' - 11000'/11000'
18-Mar-17 4MPH Challenge ? Whiskeytown ?'/?'
(20-Mar-16) Canyon Meadow 50k Oakland 3812'/3812'
(26-Mar-16) San Francisco 50m Sausalito 9565'/9565'
1-Apr-17 American River 50m Sacramento 3474'/2139'
(2-Apr-16) Grizzly Peak 50k Berkeley 6760'/6760'
8-Apr-17 Lake Sonoma 50m Geyserville 10500'/10500'
(9-Apr-16) Woodside Crossover 50k Woodside 4610'/4610'
15-Apr-17 Ruth Anderson Memorial Endurance Run 50k/50m/100k San Francisco 1450'/1450'
(16-Apr-16) Diablo Trails Challenge 50k Brentwood ?'/?'
22-Apr-17 Four Falls Fifty K 50k Whiskeytown 7500'/7500'
(23-Apr-16) Folsom Lake 50k Folsom 2030'/2030'

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: 4/24/16) StanJ@Run100s.com