2018 - 2019 California Race Calendar in May

Browse our Marathons, Half Marathons, Ultra marathons, Multiday events organized in California during the month of May among 173 races.

173 races

Gold Rush 50K

2017-05-13
North America / USA / Pacific / California / Folsom
Ultramarathon
Trail Running Solo

PCT50 Trail Run

2017-05-13 - 06:00
North America / USA / Pacific / California / Cleveland National Forest
Ultramarathon
Trail Running

Born to Run Ultra Marathons

4 Day
2017-05-17 - 12:00
North America / USA / Pacific / California / Los Olivos
X-hour race
Trail X-hour Race

Born to Run Ultra Marathons

200 Miler
2017-05-18 - 06:00
North America / USA / Pacific / California / Los Olivos
Ultramarathon
Trail Running

Born to Run Ultra Marathons

100 Miler
2017-05-19 - 18:00
North America / USA / Pacific / California / Los Olivos
Ultramarathon
Trail Running

Born to Run Ultra Marathons

10 Miler
2017-05-20 - 06:00
North America / USA / Pacific / California / Los Olivos
10 km race to Half Marathon
Trail Running

Born to Run Ultra Marathons

60 Miler
2017-05-20 - 06:00
North America / USA / Pacific / California / Los Olivos
Ultramarathon
Trail Running

Born to Run Ultra Marathons

30 Miler
2017-05-20 - 06:00
North America / USA / Pacific / California / Los Olivos
Ultramarathon
Trail Running

Mito 5k Pajama Run

2017-05-20 - 09:00
North America / USA / Pacific / California / San Diego
5k race
Running

San Francisco 50mi/50lm Endurance Run

San Francisco 50 Mile Endurance Run
2017-05-20 - 07:00
North America / USA / Pacific / California / Rodeo Beach, Golden Gate National Recreation, CA
Ultramarathon
Trail Running Hilly

San Francisco 50mi/50lm Endurance Run

San Francisco 100 Mile Endurance Run
2017-05-20 - 07:00
North America / USA / Pacific / California / Rodeo Beach, Golden Gate National Recreation, CA
Ultramarathon
Trail Running Hilly

Terrain Race: SAN JOSE

2017-05-20 - 08:00
North America / USA / Pacific / California / San Jose
Unkwnon distance race
Obstacle Race
Upcoming races first Name A->Z Name Z->A Location A->Z Location Z->A Date older->newer Date newer-> older