location_city Marbury
location_on Maryland
flag United States
calendar_today 14 Jun, 2026
directions_run Running
language Official Website
Register2026 Cal Tri DC - 6.14.26. Combine a trip to the nation's capitol with a race venue just 30 miles south of Washington DC in Maryland's General Smallwood State Park.
18 EVENT OPTIONS. 6 Olympic distance events (Triathlon, RunBikeRun, SwimBike, SwimRun, 1640 Yard Swim & 10K Run), 6 Sprint distance events (Triathlon, RunBikeRun, SwimBike, SwimRun, 400 yard Swim & 5K Run) and 6 Youth Sprint distance events (Triathlon, RunBikeRun, SwimBike, SwimRun, 400 yard Swim & 5K Run). Triathlon = swim + bike + run. Typically, the swim and run distances are standard but the bike distance varies from race to race. Check out the course maps for more detailed information.
TO DO. Smithsonian National Museum of Natural History. National Museum of African American History and Culture. US Capitol.
AIRPORT. Ronald Reagan Washington National (DCA)
AIR TEMPERATURE (AVG). 64 F / 86 F
WATER TEMPERATURE (AVG). 82 F. Wetsuit allowed with no results. Use the 20% CALTRI2025 discount code at blueseventy. Note: Fusion wetsuits not eligible for discount.
Jun 14, 2026
Distance — 5K
Type — Road running
08:00
Jun 14, 2026
Distance — Sponsor - 10x10 Tent
Type — Road running
08:00
Jun 14, 2026
Distance — Sprint RunBikeRun (5km run 26km bike 5km run)
Type — Road running
08:00
Jun 14, 2026
Distance — Sprint Swim (400 yards)
Type — Road running
08:00
Jun 14, 2026
Distance — Sprint SwimBike
Type — Road running
08:00
Jun 14, 2026
Distance — Sprint SwimRun
Type — Road running
08:00
Jun 14, 2026
Distance — Sprint Triathlon
Type — Road running
08:00
Jun 14, 2026
Distance — Youth 5K
Type — Road running
08:00
Jun 14, 2026
Distance — Youth Sprint RunBikeRun (5km run 23.5km bike 5km run)
Type — Road running
08:00
Jun 14, 2026
Distance — Youth Sprint Swim
Type — Road running
08:00
Jun 14, 2026
Distance — Youth Sprint SwimBike
Type — Road running
08:00
Jun 14, 2026
Distance — Youth Sprint SwimRun
Type — Road running
08:00
Jun 14, 2026
Distance — Youth Sprint Triathlon
Type — Road running
08:00
Jun 14, 2026
Distance — 10K
Type — Road running
08:20
Jun 14, 2026
Distance — Olympic RunBikeRun (5km run 40km bike 10km run)
Type — Road running
08:20
Jun 14, 2026
Distance — Olympic Swim (1640 yards)
Type — Road running
08:20
Jun 14, 2026
Distance — Olympic SwimBike
Type — Road running
08:20
Jun 14, 2026
Distance — Olympic SwimRun
Type — Road running
08:20
Jun 14, 2026
Distance — Olympic Triathlon
Type — Road running
08:20
These values represent the 3-year monthly averages for June in Marbury.
Marbury is an unincorporated community in Charles County, Maryland, United States. It has been designated the zip code of 20658. Marbury is located 6.3 miles from Indian Head on Maryland Route 224.
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