SGRAIL Marin - Triathlon & Trail Half Marathon
San Rafael, California5:00 PM startTrailOpen water swim
from Free
RegisterCalifornia triathlons
Triathlons in California
30 upcoming triathlons in California listed by date, with cities, start times, and entry fees. Find a triathlon near you and register.
30
upcoming races
1
cities with 3+
Other distances
October 2026
2026 XTERRA WETSUITS Mission Bay Triathlon & San Diego 5K
San Diego, California6:40 AM startOpen water swim
from $46
RegisterAggieathlon (UC Davis Triathlon Club)
Davis, California7:15 AM startPool swim
from $35
Register2026 Cal Tri LA - 10.18.26
Playa Del Rey, California7:50 AM startOpen water swim
from Free
RegisterLake Evans Triathlon, 5k & 10k
Bakersfield, California8:45 AM startOpen water swim
from $50
RegisterBearathlon 2026
Berkeley, California7:00 AM startOpen water swim
from $60
RegisterNovember 2026
2026 Optimism Cal Tri Newport Dunes - 11.1.26
Newport Beach, California7:00 AM startOpen water swim
from $43.86
Register2026 Morro Bay Triathlon
Morro Bay, California8:00 AM startOpen water swim
from $60
Register
from $165
Register
from $30
RegisterDecember 2026
from $50
RegisterMarch 2027
Bayshore 70.4 and Sprint Triathlon
Long Beach, California7:00 AM startOpen water swim
from $175
RegisterThe Rocky Hill Triathlon
Exeter, California7:30 AM startPool swim
from $50
RegisterApril 2027
2027 Cal Tri Lake Perris - 4.11.27
Perris, California8:00 AM startOpen water swim
from $33.86
RegisterMillerton Lake Crows Nest Triathlon, 5k & 10k
Friant, California7:00 AM startOpen water swim
from $45
RegisterOrange County Multisport Festival
Mission Viejo, California7:00 AM startOpen water swim
from $60
RegisterGrapes of Wrath Triathlon, 5k & 10k
Delano, California8:00 AM startOpen water swim
from $50
RegisterMay 2027
2027 Spring Sprint Triathlon & San Diego Tri Series 5K
San Diego, California6:45 AM startOpen water swim
from $34
Register2027 Cal Tri Ventura - 5.2.27
Ventura, California7:00 AM startOpen water swim
from $33.86
RegisterMenlo Park Kids Triathlon
Menlo Park, California8:00 AM startOpen water swim
from $125
RegisterJune 2027
from $35
Register2027 Cal Tri Castaic Lake - 6.19.27
Castaic, California8:00 AM startOpen water swim
from $33.86
RegisterHuntington Lake Triathlon, 5k & 10k
Lakeshore, California8:30 AM startOpen water swim
from $50
Register2027 Cal Tri La Crema - 6.27.27
Guerneville, California8:00 AM startOpen water swim
from $33.86
RegisterSan Diego International Triathlon & Waterfront 5.6K
San Diego, California6:35 AM startOpen water swim
from $34
RegisterAugust 2027
Tri Santa Cruz
Santa Cruz, California8:00 AM startOpen water swim
from $75
Register
from $60
RegisterMenlo Park Back-to-School Kids Triathlon
Menlo Park, California8:00 AM startOpen water swim
from $95
RegisterBarbara Schmidt Millar Women's Triathlon & 5K: Celebrating Life, Empowering Women
Nevada City, California9:00 AM start
from $40
RegisterSeptember 2027
Shaver Lake Mile High Triathlon
Shaver Lake, California8:30 AM startOpen water swim
from $65
Register