Race Discovery

Duathlon Race Calendar in California, United States

25 events found

2026 XTERRA WETSUITS Mission Bay Triathlon & San Diego 5K logo
Oct
11

2026 XTERRA WETSUITS Mission Bay Triathlon & San Diego 5K

San Diego, California, United States
$51.00 - $203.00
Duathlon Running
19K 5K
Lake Hodges Trail Festival logo
Oct
17

Lake Hodges Trail Festival

San Diego, California, United States
$15.00 - $145.00
Trail running Running Duathlon
50K 25.1K 15K 10.3K +7
Lake Hodges Trail Duathlon logo
Oct
18

Lake Hodges Trail Duathlon

San Diego, California, United States
$125.00
Duathlon
37K
Lake Evans Triathlon, 5k & 10k logo
Oct
18

Lake Evans Triathlon, 5k & 10k

Bakersfield, California, United States
$50.00 - $240.00
Triathlon Aquabike Swimrun Duathlon Running
23.7K 48.4K 18.7K 5.3K +12
Spring Fling Duathlon/5k logo
Mar
20

Spring Fling Duathlon/5k

Fresno, California, United States
$45.00 - $160.00
Duathlon Running
25.7K 5K +1
Cal Tri Lake Perris - 4.11.27 logo
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
Millerton Lake Crows Nest Triathlon, 5k & 10k logo
Apr
18

Millerton Lake Crows Nest Triathlon, 5k & 10k

Friant, California, United States
$45.00 - $1,000.00
Triathlon Duathlon Running Aquabike Swimrun
Super Sprint Triathlon 22.2K 45.2K Sprint Triathlon Relay +15
Grapes of Wrath Triathlon, 5k & 10k logo
Apr
25

Grapes of Wrath Triathlon, 5k & 10k

Delano, California, United States
$50.00 - $200.00
Triathlon Duathlon Swimrun Aquabike Running
26.6K 48.1K Sprint Duathlon Sprint Aquathlon +11
Spring Sprint Triathlon & San Diego Tri Series 5K logo
May
02

Spring Sprint Triathlon & San Diego Tri Series 5K

San Diego, California, United States
$34.00 - $261.00
Triathlon Duathlon Aquabike Running
Triathlon-International Triathlon-Sprint 5K Aquabike (Swim/Bike) - Sprint +7
Cal Tri Ventura - 5.2.27 logo
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
Huntington Lake Triathlon, 5k & 10k logo
Jun
19

Huntington Lake Triathlon, 5k & 10k

Lakeshore, California, United States
$50.00 - $1,000.00
Triathlon Duathlon Aquabike Swimrun Running
22.9K 48K 27.5K 17.5K +14
Cal Tri Castaic Lake - 6.19.27 logo
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