Duathlon Race Calendar in California, United States

Aug

08

Tri Santa Cruz

Santa Cruz, California, United States

$75.00 - $345.00

Triathlon Aquabike Swimrun Duathlon Swimming Running

International Triathlon International Clydesdales & Athena International Relay Team International Aquabike +16

Aug

29

Pre Reg 2027 Torrance Memorial Medical Center, BRA Run, Los Angeles

Playa Del Rey, California, United States

$12.50 - $85.00

Running Cycling Duathlon

13K 5K 1K 22.5K +4

Aug

29

Torrance Memorial Medical Center, Bra Run, Los Angeles

Playa Del Rey, California, United States

$12.50 - $80.00

Running Cycling Duathlon

13K 5K 1K 22.5K +4

Sep

12

Shaver Lake Mile High Triathlon

Shaver Lake, California, United States

$65.00 - $1,000.00

Triathlon Aquabike Swimrun Duathlon Running

23.7K 48.4K 18.7K 5.3K +17

Oct

11

2026 XTERRA WETSUITS Mission Bay Triathlon & San Diego 5K

San Diego, California, United States

Duathlon Running

19K 5K

Oct

01

Hart Park After Work 5K and Mtb Series Race #4

Bakersfield, California, United States

Mountain biking Running Duathlon Cycling

9.7K 5K 14.5K +2

Sep

17

Hart Park After Work 5K and Mtb Series Race #3

Bakersfield, California, United States

Mountain biking Running Duathlon Cycling

9.7K 5K 14.5K +2

Sep

10

Hart Park After Work 5K and Mtb Series Race #2

Bakersfield, California, United States

Mountain biking Running Duathlon Cycling

MTB/GRAVEL RACE 5K 9.7K 14.5K +3

Aug

23

Sandman Tri

Aptos, California, United States

Triathlon Duathlon

38.6K 32.2K

Aug

16

2026 CVC San Diego Triathlon and San Diego Tri Series 5K

Chula Vista, California, United States

Duathlon Running

19K 5K

Jul

26

Crescent City Triathlon

Crescent City, California, United States

Triathlon Duathlon

5K 1.6K +1

Jul

26

2026 Solana Beach Triathlon & Duathlon and Solana Beach 5K

Solana Beach, California, United States

Triathlon Duathlon Aquabike Running

5K 6.4K +2