2026 Cal Tri Houston - 9.13.26

Cal Tri Houston is a September multisport race based at Typhoon Texas Waterpark Houston in Katy, just west of Houston. The menu is built around short-format racing: Sprint Triathlon, RunBikeRun, RunSwim, standalone Swim, and a 5K run. Its reverse triathlon format starts with the run, moves to the bike, and ends in the water, which gives the day a different rhythm from the usual swim-bike-run order. Conditions are typically hot but manageable for Texas, with average air temperatures listed around 70 to 90 F and water around 80 F. The event fits into the wider Cal Tri series, which also includes stops such as Austin, DFW, DC, Castaic Lake, La Crema, Williamsburg, Charlottesville, Charlotte, LA, and Newport Beach. The Houston race is aimed at adults, with the sprint triathlon open to athletes 18 and older, and the multiple formats make room for people who want a full three-discipline race as well as those who prefer running, swimming, or two-sport combinations. The waterpark setting is the practical hook: athletes race from a family-oriented venue rather than a remote lake or downtown course, with George Bush Intercontinental Airport serving as the listed travel gateway.