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Upcoming Triathlons in California

Find 76 upcoming events across the state

Youth Triathlon
Triathlon

Youth Triathlon

Livermore, CA
May 3, 2026
Youth
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Cal Tri Ventura - 5.3.26
Triathlon

Cal Tri Ventura - 5.3.26

Ventura, CA
May 3, 2026
OlympicSprintDuathlonAquabikeAquathlon
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Spring Sprint Triathlon and SD Tri Series 5K
Triathlon

Spring Sprint Triathlon and SD Tri Series 5K

San Diego, CA
May 3, 2026
OlympicSprintDuathlonAquabikeAquathlonYouth
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Folsom Lake International Triathlon
Triathlon

Folsom Lake International Triathlon

Granite Bay, CA
May 9, 2026
OlympicSuper SprintAquabike
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Silicon Valley Kids Triathlon
Triathlon
Price rises in 3 days

Silicon Valley Kids Triathlon

Cupertino, CA
May 10, 2026
Youth
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Folsom Lake Sprint & Super Sprint Triathlon
Triathlon

Folsom Lake Sprint & Super Sprint Triathlon

Granite Bay, CA
May 10, 2026
SprintSuper Sprint
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Nite Moves Summer Sunset Series #1
Triathlon

Nite Moves Summer Sunset Series #1

Santa Barbara, CA
May 20, 2026
Aquathlon
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VI TRI
Triathlon
Price rises in 18 days

VI TRI

Visalia, CA
May 23, 2026
SprintDuathlonYouth
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Nite Moves Summer Sunset Series #2
Triathlon

Nite Moves Summer Sunset Series #2

Santa Barbara, CA
May 27, 2026
Aquathlon
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Spring Sprint @ Uvas
Triathlon
Price rises in 28 days

Spring Sprint @ Uvas

Morgan Hill, CA
May 31, 2026
SprintDuathlonAquabike
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Nite Moves Summer Sunset Series #3
Triathlon

Nite Moves Summer Sunset Series #3

Santa Barbara, CA
June 3, 2026
Aquathlon
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TRI for Real Triathlon #1
Triathlon

TRI for Real Triathlon #1

Herald, CA
June 6, 2026
OlympicAquabikeYouth
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Menlo Park Kids Triathlon
Triathlon
Price rises in 19 days

Menlo Park Kids Triathlon

Menlo Park, CA
June 7, 2026
Youth
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TRI for Kids Triathlon #1
Triathlon

TRI for Kids Triathlon #1

Herald, CA
June 7, 2026
Youth
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Nite Moves Summer Sunset Series #4
Triathlon

Nite Moves Summer Sunset Series #4

Santa Barbara, CA
June 10, 2026
Aquathlon
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Nite Moves Summer Sunset Series #5
Triathlon

Nite Moves Summer Sunset Series #5

Santa Barbara, CA
June 17, 2026
Aquathlon
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Huntington Lake Triathlon, 5k & 10k
Triathlon
Price rises in 27 days

Huntington Lake Triathlon, 5k & 10k

Lakeshore, CA
June 20, 2026
OlympicSprintDuathlonAquabikeAquathlon
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Wolfpack Youth Super Sprint Aquathlon Race Sanctioned by USA Triathlon (USAT)
Triathlon
Price rises in 2 days

Wolfpack Youth Super Sprint Aquathlon Race Sanctioned by USA Triathlon (USAT)

San Jose, CA
June 20, 2026
Youth
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Cal Tri Castaic Lake - 6.20.26
Triathlon
Price rises in 22 days

Cal Tri Castaic Lake - 6.20.26

Castaic, CA
June 20, 2026
OlympicSprintAquabikeAquathlonDuathlonYouth
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Nite Moves Summer Sunset Series #6
Triathlon

Nite Moves Summer Sunset Series #6

Santa Barbara, CA
June 24, 2026
Aquathlon
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Cal Tri La Crema - 6.28.26
Triathlon
Price rises in 30 days

Cal Tri La Crema - 6.28.26

Guerneville, CA
June 28, 2026
OlympicSprintDuathlonAquathlonAquabike
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San Diego International Triathlon
Triathlon

San Diego International Triathlon

San Diego, CA
June 28, 2026
OlympicSprint
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Nite Moves Summer Sunset Series #7
Triathlon

Nite Moves Summer Sunset Series #7

Santa Barbara, CA
July 1, 2026
Aquathlon
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Nite Moves Summer Sunset Series #8
Triathlon

Nite Moves Summer Sunset Series #8

Santa Barbara, CA
July 8, 2026
Aquathlon
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Coveathlon #1
Triathlon
Price rises in 34 days

Coveathlon #1

Newport Beach, CA
July 9, 2026
Aquathlon
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TRI for Real Triathlon #2
Triathlon

TRI for Real Triathlon #2

Herald, CA
July 11, 2026
OlympicAquabike
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TRI for FUN Triathlon #2
Triathlon

TRI for FUN Triathlon #2

Herald, CA
July 12, 2026
Sprint
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TRI for Kids Triathlon #2
Triathlon

TRI for Kids Triathlon #2

Herald, CA
July 12, 2026
Youth
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Tri for KIDS Triathlon - #2
Triathlon

Tri for KIDS Triathlon - #2

Herald, CA
July 12, 2026
Youth
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Nite Moves Summer Sunset Series #9
Triathlon

Nite Moves Summer Sunset Series #9

Santa Barbara, CA
July 15, 2026
Aquathlon
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Coveathlon #2
Triathlon
Price rises in 34 days

Coveathlon #2

Newport Beach, CA
July 16, 2026
Aquathlon
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Long Beach Legacy Triathlon
Triathlon

Long Beach Legacy Triathlon

Long Beach, CA
July 18, 2026
Sprint
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Great American Triathlon
Triathlon

Great American Triathlon

Sacramento, CA
July 18, 2026
Dry Tri
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Nite Moves Summer Sunset Series #10
Triathlon

Nite Moves Summer Sunset Series #10

Santa Barbara, CA
July 22, 2026
Aquathlon
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Donner Lake Kids Triathlon
Triathlon

Donner Lake Kids Triathlon

Truckee, CA
July 25, 2026
Youth
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Crescent City Triathlon
Triathlon
Price rises in 69 days

Crescent City Triathlon

Crescent City, CA
July 26, 2026
SprintDuathlonYouth
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Donner Lake Triathlon
Triathlon

Donner Lake Triathlon

Truckee, CA
July 26, 2026
Half IronOlympicSprintYouth
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Solana Beach Triathlon & Duathlon and Solana Beach 5K
Triathlon
Price rises in 25 days

Solana Beach Triathlon & Duathlon and Solana Beach 5K

Solana Beach, CA
July 26, 2026
SprintDuathlonAquabikeAquathlon
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Nite Moves Summer Sunset Series #11
Triathlon

Nite Moves Summer Sunset Series #11

Santa Barbara, CA
July 29, 2026
Aquathlon
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Nite Moves Summer Sunset Series #12
Triathlon

Nite Moves Summer Sunset Series #12

Santa Barbara, CA
August 5, 2026
Aquathlon
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Coveathlon #4
Triathlon
Price rises in 34 days

Coveathlon #4

Newport Beach, CA
August 6, 2026
Aquathlon
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TRI for Real Triathlon #3
Triathlon

TRI for Real Triathlon #3

Herald, CA
August 8, 2026
OlympicYouth
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Tri Santa Cruz
Triathlon
Price rises in 2 days

Tri Santa Cruz

Santa Cruz, CA
August 9, 2026
OlympicSprintDuathlon
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TRI for FUN Triathlon #3
Triathlon

TRI for FUN Triathlon #3

Herald, CA
August 9, 2026
Super SprintDuathlon
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TRI for Kids Triathlon #3
Triathlon

TRI for Kids Triathlon #3

Herald, CA
August 9, 2026
Youth
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Nite Moves Summer Sunset Series #13
Triathlon

Nite Moves Summer Sunset Series #13

Santa Barbara, CA
August 12, 2026
Aquathlon
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Courage Triathlon
Triathlon
Price rises in 68 days

Courage Triathlon

Westwood, CA
August 15, 2026
Dry Tri
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Alpha Win - June Lake Triathlon
Triathlon

Alpha Win - June Lake Triathlon

June Lake, CA
August 15, 2026
Half IronOlympicSprintYouth
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CVC San Diego Triathlon and San Diego Tri Series 5K
Triathlon
Price rises in 39 days

CVC San Diego Triathlon and San Diego Tri Series 5K

Chula Vista, CA
August 16, 2026
OlympicSprintYouthDuathlonAquabike
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Ironman 70.3 Northern California
Triathlon

Ironman 70.3 Northern California

Redding, CA
August 16, 2026
Half Iron
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Nite Moves Summer Sunset Series #14
Triathlon

Nite Moves Summer Sunset Series #14

Santa Barbara, CA
August 19, 2026
Aquathlon
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The Granite Bay Triathlon
Triathlon

The Granite Bay Triathlon

Granite Bay, CA
August 22, 2026
SprintDuathlon
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Millerton Madness Triathlon
Triathlon
Price rises in 111 days

Millerton Madness Triathlon

Friant, CA
August 23, 2026
SprintYouth
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The Sandman Triathlon and Duathlon
Triathlon
Price rises in 34 days

The Sandman Triathlon and Duathlon

Aptos, CA
August 23, 2026
SprintDuathlon
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Santa Barbara Triathlon & Beach Festival
Triathlon
Price rises in 3 days

Santa Barbara Triathlon & Beach Festival

Santa Barbara, CA
August 29, 2026
OlympicSprint
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Lake Tahoe Triathlon
Triathlon

Lake Tahoe Triathlon

Tahoma, CA
August 30, 2026
Half IronOlympicSprintDuathlon
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Nite Moves Summer Sunset Series #16
Triathlon

Nite Moves Summer Sunset Series #16

Santa Barbara, CA
September 2, 2026
Aquathlon
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The Gravel X Triathlon
Triathlon

The Gravel X Triathlon

Granite Bay, CA
September 12, 2026
OlympicSprintDry Tri
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Pacific Coast Triathlon
Triathlon
Price rises in 13 days

Pacific Coast Triathlon

Laguna Beach, CA
September 13, 2026
SprintDuathlon
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Shaver Lake Mile High Triathlon
Triathlon
Price rises in 2 days

Shaver Lake Mile High Triathlon

Shaver Lake, CA
September 13, 2026
OlympicSprint
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San Diego Kids Splash & Dash
Triathlon

San Diego Kids Splash & Dash

Chula Vista, CA
September 20, 2026
Youth
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Apple Valley Reverse Triathlon - 2026
Triathlon

Apple Valley Reverse Triathlon - 2026

Apple Valley, CA
September 26, 2026
SprintYouth
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Tri to Inspire
Triathlon
Price rises in 122 days

Tri to Inspire

Santa Rosa, CA
September 27, 2026
SprintSuper Sprint
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Santa Cruz Triathlon
Triathlon

Santa Cruz Triathlon

Santa Cruz, CA
September 27, 2026
OlympicSprint
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XTERRA WETSUITS Mission Bay Triathlon & San Diego 5K
Triathlon
Price rises in 4 days

XTERRA WETSUITS Mission Bay Triathlon & San Diego 5K

San Diego, CA
October 11, 2026
OlympicSprintDuathlonAquabikeYouthAquathlon
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Cal Tri LA - 10.18.26
Triathlon
Price rises in 6 days

Cal Tri LA - 10.18.26

Playa Del Rey, CA
October 18, 2026
OlympicSprintDuathlonAquabike
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Lake Hodges Trail Duathlon
Triathlon
Price rises in 4 days

Lake Hodges Trail Duathlon

San Diego, CA
October 18, 2026
Duathlon
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Lake Evans Triathlon, 5k & 10k
Triathlon
Price rises in 121 days

Lake Evans Triathlon, 5k & 10k

Bakersfield, CA
October 18, 2026
OlympicSprint
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Alpha Win Napa Valley Fall
Triathlon

Alpha Win Napa Valley Fall

Napa, CA
October 24, 2026
Half IronOlympicSprintSuper SprintDuathlonYouthAquabike
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Optimism Cal Tri Newport Dunes - 11.1.26
Triathlon
Price rises in 6 days

Optimism Cal Tri Newport Dunes - 11.1.26

Newport Beach, CA
November 1, 2026
OlympicSprintDuathlonAquabikeAquathlonYouth
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Morro Bay Triathlon
Triathlon
Price rises in 28 days

Morro Bay Triathlon

Morro Bay, CA
November 1, 2026
OlympicSprintDry Tri
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Fall Classic Olympic Triathlon
Triathlon

Fall Classic Olympic Triathlon

Long Beach, CA
November 7, 2026
Olympic
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Fall Classic Olympic Triathlon
Triathlon

Fall Classic Olympic Triathlon

Long Beach, CA
November 7, 2026
Olympic
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Tinsel Triathlon
Triathlon
Price rises in 186 days

Tinsel Triathlon

Hemet, CA
December 13, 2026
Sprint
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The Rocky Hill Triathlon
Triathlon
Price rises in 153 days

The Rocky Hill Triathlon

Exeter, CA
March 13, 2027
OlympicSprint
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Bayshore 70.4 and Sprint Triathlon
Triathlon

Bayshore 70.4 and Sprint Triathlon

Long Beach, CA
March 13, 2027
Half IronSprint
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Finding the Right California Triathlon

Whether you are looking for a beginner-friendly Sprint in California or a challenging 70.3, Let's Race provides the most up-to-date calendar for triathletes. Our California list is updated daily to include Ironman, Olympic, and local club races.