Some ultras in Northern California (& Nevada) shorter than 100 miles
DateRaceDist.LocationClimb/Descent
2-May-20 Folsom Lake 50k Folsom 2030'/2030'
3-May-20 Horseshoe Lake 50k Palo Alto 4560'/4560'
3-May-20 Red Hills Ramble 50k Tuolomne ?'/?'
9-May-20 Grizzly Peak 50k Berkeley 6760'/6760'
9-May-20 Trail Run at Sly Park 50k Pollock Pines ?'/?'
16-May-20 San Francisco 50k/50m Sausalito 9565'/9565'
16-May-20 Mt. Diablo 50k Clayton ?'/?'
16-May-20 Silver State 50k/50m Reno, NV 5800'/6100' - 9200'/9200'
17-May-20 Ohlone Wilderness 50k Fremont 8530'/8160'
30-May-20 Bishop High Sierra 50k/50m/100k Bishop ?'/?'
30-May-20 The Cruel 50K 50k Pacifica ?'/?'
30-May-20 The Ridge 62k Lagunitas ?'/?'
30-May-20 4MPH Challenge ? Whiskeytown ?'/?'
31-May-20 Big Basin 50k Los Gatos 5790'/5790'
6-Jun-20 The Loco Challenge 50k/100k Butte Meadows ?'/?'
6-Jun-20 Calero Trail Run 50k San Jose ?'/?'
7-Jun-20 Ruck a Chuck 50k Foresthill ?'/?'
14-Jun-20 Cinderella 50k Oakland 5495'/5495'
20-Jun-20 San Lorenzo River 50k Santa Cruz 5175'/5175'
20-Jun-20 Sierra Azul Trail Challenge 50k/50m/100k Los Gatos ?'/?'
(6-Jul-19) Lovers' Leap of Faith 50k/50m Strawberry ?'/?'/?
11-Jul-20 Salt Point 50k Jenner ?'/?'
11-Jul-20 Dirty Dozen 6hr/12hr Pinole ?'/?'
11-Jul-20 Rancho Trail Run 50k Morgan Hill ?'/?'
18-Jul-20 Tahoe Rim Trail 55k/50m Lake Tahoe, NV 6895'/6895' - 9894'/9894'
18-Jul-20 Rodeo Valley 50k Sausalito 6000'/6000'
25-Jul-20 Redwood Trail 50k Oakland 5495'/5495'
25-Jul-20 Pacifica Trail 50k Pacifica ?'/?'
(27-Jul-19) Worth the Hurt 52m San Francisco ?'/?'
1-Aug-20 Crystal Springs 50k Woodside 4530'/4530'
1-Aug-20 Armstrong Redwoods 50k Guerneville ?'/?'
2-Aug-20 Skyline 50k Castro Valley 4740'/4740'
8-Aug-20 Coastal 50k Stinson Beach 5090'/5090'
8-Aug-20 The Groves 50k Loma Mar ?'/?'
8-Aug-20 Cool Moon 50m/100k Cool 8000'/11000'
8-Aug-20 Kirkwood Mountain Ultra Challenge 50k/50m/100k/100m Kirkwood ?'/?'
(17-Aug-19) Run-de-Vous 50k/50m San Martin ?'/?'
22-Aug-20 Headlands 50m/75m Sausalito 11410'/11410'
22-Aug-20 Castle Peak 100k Truckee ?'/?'
22-Aug-20 Golden State 50k Monterey ?'/?'
22-Aug-20 Trail Run at Sly Park 50k Pollock Pines ?'/?'
23-Aug-20 Diablo 50k Clayton 7990'/7990'
29-Aug-20 Tamalpa Headlands 50K 50k Rodeo Beach 6521'/6521'
29-Aug-20 Mendocino Running Festival 6hr/12hr Mendocino ?'/?'
29-Aug-20 Almaden Hills Trail Run 50k San Jose ?'/?'
5-Sep-20 High Sierra 50k Kyburz ?'/?'
12-Sep-20 Overlook 50k/50m Foresthill ?'/?'
19-Sep-20 Golden Gate 50k Rodeo Beach 6320'/6320'
19-Sep-20 Berkeley Trail Adventure 50k Oakland 4500'/4500'
20-Sep-20 Whiskey Hill Redwood Run 50k Woodside ?'/?'
26-Sep-20 Headwaters Ultra 50k Mount Shasta 5600'/5600'
26-Sep-20 Bay Ridge/Dick Collins 50m/100k Castro Valley 8500'/8500' - 11000'/11000;
26-Sep-20 Ultra Trails Lake Tahoe (UTLT) 50k/50m Lake Tahoe ?'/?'
3-Oct-20 Quicksilver 50k/100k San Jose 6000'/12000'
3-Oct-20 Skyline to the Sea 50k Saratoga Gap 3000'/3000'
3-Oct-20 Echo Summit Trail Challenge 50k Echo Summit ?'/?'
4-Oct-20 Santa Clarita Ultra 50k Santa Clarita ?'/?'
10-Oct-20 Ruth Anderson Memorial Endurance Run 50k/50m San Francisco 1450'/1450'
10-Oct-20 Tahoe Midnight Express 50m/72m So. Lake Tahoe ?'/?'
(12-Oct-19) Euchre Bar Massacre 50mi Foresthill 20000'/20000'
11-Oct-20 Bizz Johnson 50k Susanville ?'/?'
17-Oct-20 Marine Mammal 60km Sausalito 7602'/7602'
24-Oct-20 Vista Verde Skyline 50km Woodside ?'/?'
31-Oct-20 Woodside 50k Woodside 4530'/4530'
7-Nov-20 Lake Chabot 50k Castro Valley 2670'/2670'
7-Nov-20 Annual Almaden Hills Run 50k San Jose ?'/?'
14-Nov-20 Mt. Tam 50k Stinson Beach 7000'/7000'
14-Nov-20 Two Peaks 50k/50m Redding ?'/?'
14-Nov-20 Trail Run at Sly Park 50k Pollock Pines ?'/?'
(16-Nov-19) North Face 50k/50m Sausalito ?'/?'
(23-Nov-19) Meat Grinder 50k Newcastle 3300'/3300'
28-Nov-20 Quad Dipsea 28.4m Mill Valley 9276'/9276'
(30-Nov-19) Mountain Brow House 50k Woodside ?'/?'
5-Dec-20 Calero Trail Run 50k San Jose ?'/?'
6-Dec-20 HST Fear & Loathing 50k/50m San Francisco 2739'/2743'
(7-Dec-19) San Joaquin River Trail 50km/100km Friant ?'/?'
(7-Dec-19) Spooner's Cove 50k Los Osos 6400'/6400'
12-Dec-20 Rodeo Beach 50k Sausalito 5980'/5980'
(14-Dec-19) Snowberry 50k Folsom 1800'/1800'
(21-Dec-19) Woodside Ramble 50k Woodside 4530'/4530'
31-Dec-20 New Year's One Day 6hr/12hr/24hr San Francisco 0'/0'
(5-Jan-20) Epiphany Ultra 69k Oakland 2750'/2750'
(11-Jan-20) Steep Ravine 50k Stinson Beach 5770'/5770'
(11-Jan-20) Fat Ass 50k Saratoga ?
(11-Jan-20) One Day in Auburn 6hr/12hr/24hr Auburn ?'/?'
(18-Jan-20) Fremont 50k Fremont ?'/?'
(18-Jan-20) Dead Truck 50k Auburn 5200'/5200'
(19-Jan-20) Crystal Springs 50k Woodside 4530'/4530'
(25-Jan-20) Eldrith Gosney's Pure Ultra 50k Mill Valley 6498'/6498'
(1-Feb-20) Jed Smith 50k/50m Sacramento 540'/960'
(1-Feb-20) Fort Ord/Ordnance 50k/100k Monterey ?'/?'
(8-Feb-20) Golden Gate 50k Rodeo Beach 6320'/6320'
(8-Feb-20) Calero Trail Run 50k San Jose ?'/?'
(15-Feb-20) Second Saratoga Fat Ass 50k Saratoga ?/?
(15-Feb-20) FOURmidable 50k Auburn ?'/?'
(16-Feb-20) Montara Mountain 50k Pacifica 6700'/6700'
(22-Feb-20) Mt. Umunhum 52k San Jose ?'/?'
(22-Feb-20) Chabot Trail 50k Castro Valley ?'/?'
(29-Feb-20) Salmon Falls 50k Pilot Hill 3500'/3500'
(7-Mar-20) Way Too Cool 50k Cool 6113'/6107'
(7-Mar-20) Montana de Oro 50k Los Osos ?'/?'
(14-Mar-20) Pioneer Spirit 50m Auburn-to-Folsom ?'/?'
(14-Mar-20) Marin Ultra Challenge 50k/50m Sausalito 6900'/6900' - 11000'/11000'
(14-Mar-20) Folsom South Side 50k/38mi Folsom ?'/?'
(21-Mar-20) San Jose Trail 50k San Jose ?'/?'
(28-Mar-20) Red Dragon 55k Pilot Hill 5200'/5200'
(4-Apr-20) American River 50m Sacramento 3474'/2139'
(5-Apr-20) Woodside Crossover 50k Woodside 4610'/4610'
10-Apr-21 Lake Sonoma 50m Geyserville 10500'/10500'
(11-Apr-20) Diablo Trails Challenge 50k Brentwood ?'/?'
(12-Apr-20) Redwood Trail 50k Oakland 5495'/5495'
(18-Apr-20) Mendocino Coast 50k Mendocino 4708'/4708'
(18-Apr-20) SPASM Lake Chabot 50k Castro Valley 2670'/2670'
(18-Apr-20) Saratoga Trail 50k Saratoga Gap ?'/?'
(18-Apr-20) Mokelumne River 50k Lake Camanche ?'/?'
(18-Apr-20) Napa Valley 50k Calistoga ?'/?'
(19-Apr-20) Forest Ranch 50k Forest Ranch ?'/?'
(25-Apr-20) Castle Crags 50k Castella ?'/?'
(25-Apr-20) The Canyons 50k/100k Foresthill 9200'/9200' - 14000'/14000'
(25-Apr-20) Sierra Azul Trail Challenge 50k Los Gatos ?'/?'
1-May-21 Miwok Trail 100k Stinson Beach 11628'/11628'

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: 3/30/20) StanJ@Run100s.com