The City Triathlon Karlovy Vary is an urban triathlon held in the Czech spa city of Karlovy Vary. Racing takes place within the historic city center, unlike a remote out-and-back course. It is part of the CTS Triathlon series and holds World Cup status. The main race attracts leading Czech and international triathletes, while the broader program allows amateurs to compete during the same event weekend.
The course presents a significant challenge, not a simple flat city circuit. Its difficult terrain distinguishes Karlovy Vary from more basic beginner triathlons. Thousands of spectators and sports fans gather in the city annually, contributing to the event's atmosphere. The event also accommodates families, featuring a Baby Duathlon in Rolava Leisure Park for children aged 3-12. This includes running, cycling, separate categories for boys and girls, and a parent-child relay. School-age children can participate in the Czech Pupils' Cup, with distances and difficulty adjusted by age.