Some ultras in Northern California (& Nevada) shorter than 100 miles
DateRaceDist.LocationClimb/Descent
1/3/09 Epiphany Ultra 58k Oakland ?'/?'
7/18/09 Tahoe Rim Trail 50k
50m		 Lake Tahoe, NV 6895'/6895'
9894'/9894'
9/6/09 Run on the Sly 50k Pollock Pines 4075'/4075'
9/13/09 Stevens Creek 50k Cupertino 5000'/5000'
9/26/09 Lake Tahoe 72m So. Lake Tahoe ?'/?'
9/27/09 Santa Cruz Mountains 50k Santa Cruz 5805'/5805'
10/4/09 Skyline Ridge 50k La Honda 5190'/5190'
10/10/09 Dick Collins' Firetrails 50m Castro Valley 7820'/7840'
10/18/09 Mt. Diablo 50k Clayton 8900'/8900'
10/24/09 Whiskeytown 50k Redding 5120'/5120'
10/24/09 San Francisco One Day 12hr/24hr San Francisco 0'/0'
10/31/09 Helen Klein 50k/50m Granite Bay ?
11/8/09 Hunter S. Thompson
Fear & Loathing		 50k/50m San Francisco 2600'/2600'
11/14/09 Muir Beach 50k Muir Beach 7400'/7400'
11/14/09 Run the River 50k Granite Bay 0'/450'
11/14/09 Folsom Point 50k Folsom ?'/?'
11/22/09 Santa Monica Mtns. 50k Malibu 5490'/5490'
11/28/09 Quad Dipsea 28.4m Mill Valley 9276'/9276'
12/5/09 Woodside 50k Woodside 4610'/4610'
12/19/09 Rodeo Beach 50k Sausalito 5640'/5640'
1/2/10 Fat Ass 50k Saratoga ?
1/23/10 Pacifica 50k Pacifica 7090'/7090'
2/6/10 Woodside 50k Woodside 4610'/4610'
2/6/10 Jed Smith 50k/50m Sacramento 540'/960'
2/6/10 Las Trampas 50k Castro Valley 10273'/10273'
2/14/10 Montana de Oro 50k Los Osos 6400'/6400'
2/20/10 2nd Saratoga Fat Ass 50k Saratoga ?'/?'
2/27/10 Sequoia 50k Oakland 5030'/5030'
2/27/10 Pony Express 50k/50m Cameron Park ?/?
3/7/10 Malibu Creek 50k Malibu 5940'/5940'
3/13/10 Way Too Cool 50k Cool 3600'/3600'
3/20/09 Pirates Cove 50k Sausalito 6180'/6180'
3/20/10 Rucky Chucky Roundabout 50k Foresthill ?'/?'
3/21/10 Diablo Trail 50k Brentwood ?'/?'
3/27/10 Lake Sonoma 50m Geyserville 10500'/10500'
3/28/10 Sycamore Canyon 50k Malibu 5190'/5190'
4/10/10 American River 50m Sacramento 3474'/2139'
4/17/10 Ruth Anderson 50k/50m/100k San Francisco 1450'/1450'
4/17/10 Diablo 50m Clayton 13380'/13380'
4/24/10 Sunsweet 50k Red Bluff 1000'/1000'
4/25/10 Skyline to the Sea 50k Los Gatos 3045'/5625'
5/1/10 Mi-Wok Trail 100k Sausalito 9500'/9500'
5/8/10 Quicksilver 50k
50m		 San Jose 5440'/5440
8530'/8530'
5/8/10 Jenkinson Lake 50k Pollock Pines ?'/?'
5/9/10 Redwood Park 50k Oakland 4500'/4500'
5/15/10 Silver State 50k
50m		 Reno, NV 5800'/6100'
9200'/9200'
5/16/10 Big Basin Redwoods 50k Boulder Creek 5925'/5925'
5/23/10 Ohlone Wilderness 50k Fremont 8530'/8160'
6/5/10 Mt. Diablo 50k Clayton 8900'/8900'
6/5/10 Auburn Trail 50k Auburn ?'/?'
6/12/10 Lake Merritt Half Day 6hr/12hr Oakland ?'/?'
6/19/10 Angel Island 50k Tiburon 4200'/4200'
7/3/10 Pacifica 50k Pacifica 7090'/7090'
7/24/10 Sequoia 50k Oakland 5030'/5030'
8/1/10 Skyline 50k Castro Valley 4740'/4740'
8/7/10 12 Hours at Cool (night run) 12h Cool 900'/900'
8/7/10 Headlands Hundred 50m Sausalito 8160'/8160'
8/14/10 Hotter than Hell 6hr/12hr Cameron Park ?/?
8/15/10 Salt Point 50k Jenner 4960'/4960'
9/5/10 Montana de Oro 50k Los Osos 6400'/6400'
9/11/10 Lake of the Sky 33m Tahoe City 4427'/4427'
9/18/10 Redwood Park 50k Oakland 4500'/4500'
9/25/10 Sierra Nevada 52.4m
100k		 Granite Bay 5090'/5180'
?'/?'
10/2/10 Gold Country 50k Auburn ?'/?'
10/23/10 Jenkinson Lake Fall Trail 50k Pollock Pines ?'/?'

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: 11/19/09) StanJ@Run100s.com