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Triathlon Races in California found

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Triathlon Races in California 2024 - 2025

California is home to a huge number of challenging, scenic and internationally -renowned triathlons, which is why itโ€™s no surprise that more than 4,000 have taken place in the past decade alone. The mix of swimming, cycling and running has been growing in popularity across the USA and it shows no signs of slowing down.

The Golden State hosts triathlon events year round at all standard distances including Sprint distance, Olympic distance, ITU Long, Half-Ironman and Full/Ironman so no matter what your level, thereโ€™s a great selection for any ability. You can choose your distance of choice across a diverse range of terrains and locations like San Francisco, Los Angeles and San Diego, meaning however you want to take on the challenge, California is the place to chase your goals!

If youโ€™re new to Triathlons and not sure how to get started, we recommend taking a look at top beginner events like the Pasadena Triathlon. If youโ€™re wanting something iconic, thereโ€™s Californian events with ocean swimming like the Santa Cruz triathlon or the world famous Escape From Alcatraz race.

Even if youโ€™re a pro and looking for your first Super Sprint triathlon or a hardened triathlete looking for a Double Ironman distance event, youโ€™ll find the most comprehensive list of Triathlons in California at findarace.

Check out our exhaustive 2024 - 2025 California Triathlon calendar list below, and use our month, distance and terrain filters to find your next challenge.

Triathlon Races California 2024 - 2025

Bayshore 70.4 -- Sprint Triathlon---5K Friday Night Run

Long Beach, California
07 Mar 25 - 08 Mar 25
$48.70 - $228.90

The Rocky Hill Triathlon

Exeter, California
15 Mar 25
$54.00 - $170.60

Napa Valley Spring Triathlon

Napa
05 Apr 25
$49.00 - $349.00

2025 Cal Tri Lake Perris - 4.6.25

Perris, California
06 Apr 25
Free - $526.00

Millerton Lake Triathlon, 5k & 10k

Friant, California
13 Apr 25
$43.90 - $1,051.50

Lake San Antonio Triathlon

Ocklawaha, Marion
26 Apr 25 - 27 Apr 25
$96.00 - $299.00

Grapes of Wrath Triathlon, 5k & 10k

Delano, California
27 Apr 25
$54.50 - $213.50

Orange County International Triathlon

Mission Viejo, California
27 Apr 25
$61.40 - $304.40

2025 Cal Tri Ventura - 5.4.25

Ventura, California
04 May 25
$36.89 - $526.00

2025 Escape from Alcatraz Triathlon Semper Fi & America's Fund Team

San Francisco, California
01 Jun 25
$106.00

VI TRI

Visalia, California
08 Jun 25
$38.60 - $1,051.50

2025 Cal Tri Castaic Lake - 6.14.25

Castaic, California
14 Jun 25
Free - $526.00

2025 La Crema Cal Tri Sonoma - 6.22.25

Guerneville, California
22 Jun 25
$36.89 - $526.00

Huntington Lake Triathlon, 5k & 10k

Lakeshore, California
22 Jun 25
$49.20 - $1,051.50

2024 Wolfpack Super Sprint Aquathlon Race Sanctioned by USA Triathlon

San Jose, California
28 Jun 25
$85.79

Tri Santa Cruz

Santa Cruz, California
10 Aug 25
$75.70 - $358.50

Millerton Madness Triathlon

Friant, California
24 Aug 25
$49.20 - $1,051.50

Shaver Lake Mile High Triathlon

Shaver Lake, California
14 Sep 25
$49.20 - $1,051.50

Lake Evans Triathlon, 5k & 10k

Bakersfield, California
12 Oct 25
$38.60 - $1,051.50

2025 Cal Tri LA - 10.19.25

Playa Del Rey, California
19 Oct 25
Free - $526.00

2025 Optimism Cal Tri Newport Dunes - 11.2.25

Newport Beach, California
02 Nov 25
$31.59 - $526.00

Fall Classic Olympic Triathlon

Long Beach, California
08 Nov 25
$197.10

39th Annual Tinsel Triathlon

Hemet, California
07 Dec 25
$54.00 - $160.00

Stanford Treeathlon 2025

Redwood City, California
02 Mar 25
$83.84 - $235.80

Stanford Draft Legal Triathlon

Redwood City, California
02 Mar 25
$83.84 - $131.00

Spring Sprint at Uvas

Morgan Hill, California
18 May 25
Free - $213.00

Youth Triathlon Race Simulation

Sunnyvale, California
24 May 25
$43.40

Menlo Park Kids Triathlon

Menlo Park, California
01 Jun 25
$80.50 - $107.00

Courage Triathlon

Westwood, California
16 Aug 25
$52.00 - $216.80

Silicon Valley Kids Triathlon

Cupertino, California
17 Aug 25
$96.40 - $107.00
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