Swimming Race Calendar in California, United States

Aug

29

Santa Barbara Triathlon & Beach Festival

Santa Barbara, California, United States

$55.00

Running Swimming

5K 1.6K Ultra

Sep

07

Oceanside Pier Swim - 2026

Oceanside, California, United States

$80.00

Swimming

1.6K

Sep

12

La Jolla Cove Swim

La Jolla, California, United States

Free - $175.00

Swimming

2.4K 1.6K 4.8K 6.4K

Sep

12

San Pedro Rotary Open Water Swim

San Pedro, California, United States

$50.00

Swimming

1.6K 750 Meter Swim

Sep

13

Redondo Beach Swim the Avenues

Redondo Beach, California, United States

$40.00 - $65.00

Swimming

1.9K 0.8K

Oct

17

MPSF Open Water Championships - Masters/Open 5 Kilometer and 1 Kilometer Open Water Swim

Long Beach, California, United States

$75.00

Swimming

5K

Oct

18

2026 Cal Tri LA - 10.18.26

Playa Del Rey, California, United States

Free - $153.86

Triathlon Running Swimming

Ultra 5K 1.5K 10K +1

Nov

01

2026 Optimism Cal Tri Newport Dunes - 11.1.26

Newport Beach, California, United States

$43.86 - $153.86

Triathlon Running Swimming

Ultra 4.8K 1.5K 9.7K

Apr

11

Cal Tri Lake Perris - 4.11.27

Perris, California, United States

Free - $500.00

Triathlon Aquabike Swimrun Swimming Running Duathlon

Sprint Triathlon Olympic Triathlon Youth Sprint Triathlon Sprint RunBikeRun (5km run, 15km bike, 5km run) +15

May

02

Cal Tri Ventura - 5.2.27

Ventura, California, United States

$28.86 - $500.00

Triathlon Duathlon Aquabike Swimrun Swimming Running

Sprint Triathlon Ultra Sprint RunBikeRun (5km run, 22km bike, 5km run) Sprint SwimBike +9

May

22

Big River Adventure

Mendocino, California, United States

$10.00 - $35.00

Running Walking Swimming Paddle sports

Kiddie Race 5K 10K Big River Swim +2

Jun

19

Cal Tri Castaic Lake - 6.19.27

Castaic, California, United States

Free - $500.00

Triathlon Aquabike Swimrun Swimming Running Duathlon

Sprint Triathlon Olympic Triathlon Youth Sprint Triathlon Sprint RunBikeRun (5km run, 15km bike, 5km run) +15