Upcoming Triathlons in California

IRONMAN 70.3 Indian Wells-La Quinta

Indian Wells, CA

December 7, 2025

Half Iron

View Details

Tinsel Triathlon

Hemet, CA

December 14, 2025

Sprint

View Details

New Year's Duathlon & 5K

Granite Bay, CA

January 3, 2026

Duathlon

View Details

Happy Kids Duathlon - #1

Granite Bay, CA

January 24, 2026

Youth

View Details

The Dirty Duathlon

Granite Bay, CA

January 24, 2026

Duathlon

View Details

Happy Kids Duathlon - #2

Granite Bay, CA

February 7, 2026

Youth

View Details

The Double Duathlon

Granite Bay, CA

February 7, 2026

Duathlon

View Details

Stanford Treeathlon 2026

Redwood City, CA

February 14, 2026

Sprint

View Details

Stanford Draft Legal Triathlon

Redwood City, CA

February 14, 2026

Sprint

View Details

Happy Kids Duathlon - #3

Granite Bay, CA

February 21, 2026

Youth

View Details

March Triathlon Series

Arroyo Grande, CA

March 7, 2026

OlympicSprint

View Details

Bayshore 70.4 and Sprint Triathlon

Long Beach, CA

March 7, 2026

Half IronSprint

View Details

Happy Kids Duathlon - #4

Granite Bay, CA

March 7, 2026

Youth

View Details

Pasadena Triathlon

Pasadena, CA

March 7, 2026

SprintDuathlonYouth

View Details

The Rocky Hill Triathlon

Exeter, CA

March 14, 2026

OlympicSprint

View Details

Happy Kids Duathlon #5

Granite Bay, CA

March 21, 2026

Youth

View Details

IRONMAN 70.3 Oceanside

Oceanside, CA

March 28, 2026

Half Iron

View Details

Cal Tri Lake Perris - 4.5.26

Perris, CA

April 5, 2026

OlympicSprintDuathlonAquabikeAquathlonYouth

View Details

The ICE Breaker Triathlon

Granite Bay, CA

April 11, 2026

SprintSuper SprintDuathlonAquabike

View Details

Alpha Win Triathlon Series - Napa Valley

Napa Valley, CA

April 11, 2026

Half IronOlympicSprint

View Details

Wildflower Experience

Bradley, CA

May 2, 2026

Half IronOlympicSprint

View Details

Cal Tri Ventura - 5.3.26

Ventura, CA

May 3, 2026

OlympicSprintDuathlonAquabikeAquathlon

View Details

Spring Sprint Triathlon and SD Tri Series 5K

San Diego, CA

May 3, 2026

OlympicSprintDuathlonAquabikeAquathlonYouth

View Details

Folsom Lake International Triathlon

Granite Bay, CA

May 9, 2026

OlympicSuper SprintAquabike

View Details

Silicon Valley Kids Triathlon

Cupertino, CA

May 10, 2026

Youth

View Details

Folsom Lake Triathlon

Granite Bay, CA

May 10, 2026

SprintSuper Sprint

View Details

Nite Moves Summer Sunset Series #1

Santa Barbara, CA

May 20, 2026

Aquathlon

View Details

Nite Moves Summer Sunset Series #2

Santa Barbara, CA

May 27, 2026

Aquathlon

View Details

Nite Moves Summer Sunset Series #3

Santa Barbara, CA

June 3, 2026

Aquathlon

View Details

TRI for Real Triathlon #1

Herald, CA

June 6, 2026

OlympicAquabikeYouth

View Details

TRI for Kids Triathlon #1

Herald, CA

June 7, 2026

Youth

View Details

Nite Moves Summer Sunset Series #4

Santa Barbara, CA

June 10, 2026

Aquathlon

View Details

Nite Moves Summer Sunset Series #5

Santa Barbara, CA

June 17, 2026

Aquathlon

View Details

Cal Tri Castaic Lake - 6.20.26

Castaic, CA

June 20, 2026

OlympicSprintAquabikeAquathlonDuathlonYouth

View Details

Nite Moves Summer Sunset Series #6

Santa Barbara, CA

June 24, 2026

Aquathlon

View Details

Cal Tri La Crema - 6.28.26

Guerneville, CA

June 28, 2026

OlympicSprintDuathlonAquathlonAquabike

View Details

San Diego International Triathlon

San Diego, CA

June 28, 2026

OlympicSprint

View Details

Nite Moves Summer Sunset Series #7

Santa Barbara, CA

July 1, 2026

Aquathlon

View Details

Nite Moves Summer Sunset Series #8

Santa Barbara, CA

July 8, 2026

Aquathlon

View Details

TRI for Real Triathlon #2

Herald, CA

July 11, 2026

OlympicAquabike

View Details

TRI for FUN Triathlon #2

Herald, CA

July 12, 2026

Sprint

View Details

TRI for Kids Triathlon #2

Herald, CA

July 12, 2026

Youth

View Details

Tri for KIDS Triathlon - #2

Herald, CA

July 12, 2026

Youth

View Details

Nite Moves Summer Sunset Series #9

Santa Barbara, CA

July 15, 2026

Aquathlon

View Details

Long Beach Legacy Triathlon

Long Beach, CA

July 18, 2026

Sprint

View Details

Nite Moves Summer Sunset Series #10

Santa Barbara, CA

July 22, 2026

Aquathlon

View Details

Crescent City Triathlon

Crescent City, CA

July 26, 2026

SprintDuathlonYouth

View Details

Nite Moves Summer Sunset Series #11

Santa Barbara, CA

July 29, 2026

Aquathlon

View Details

Nite Moves Summer Sunset Series #12

Santa Barbara, CA

August 5, 2026

Aquathlon

View Details

TRI for Real Triathlon #3

Herald, CA

August 8, 2026

OlympicYouth

View Details

TRI for FUN Triathlon #3

Herald, CA

August 9, 2026

Super SprintDuathlon

View Details

TRI for Kids Triathlon #3

Herald, CA

August 9, 2026

Youth

View Details

Nite Moves Summer Sunset Series #13

Santa Barbara, CA

August 12, 2026

Aquathlon

View Details

Alpha Win - June Lake Triathlon

June Lake, CA

August 15, 2026

Half IronOlympicSprintYouth

View Details

Ironman 70.3 Northern California

Redding, CA

August 16, 2026

Half Iron

View Details

Nite Moves Summer Sunset Series #14

Santa Barbara, CA

August 19, 2026

Aquathlon

View Details

The Granite Bay Triathlon

Granite Bay, CA

August 22, 2026

SprintDuathlon

View Details

Nite Moves Summer Sunset Series #16

Santa Barbara, CA

September 2, 2026

Aquathlon

View Details

The Gravel X Triathlon

Granite Bay, CA

September 12, 2026

OlympicSprintDry Tri

View Details

San Diego Kids Splash & Dash

Chula Vista, CA

September 20, 2026

Youth

View Details

Lake Hodges Trail Festival

San Diego, CA

October 17, 2026

Duathlon

View Details

Cal Tri LA - 10.18.26

Playa Del Rey, CA

October 18, 2026

OlympicSprintDuathlonAquabike

View Details

Alpha Win Napa Valley Fall

Napa, CA

October 24, 2026

Half IronOlympicSprintSuper SprintDuathlonYouthAquabike

View Details

Optimism Cal Tri Newport Dunes - 11.1.26

Newport Beach, CA

November 1, 2026

OlympicSprintDuathlonAquabikeAquathlonYouth

View Details

Morro Bay Triathlon

Morro Bay, CA

November 1, 2026

OlympicSprintDry Tri

View Details

Fall Classic Olympic Triathlon

Long Beach, CA

November 7, 2026

Olympic

View Details

Fall Classic Olympic Triathlon

Long Beach, CA

November 7, 2026

Olympic

View Details