La Sansi is a running-event brand associated with Club Atletisme La Sansi and local partner municipalities. Its events bring together competitive athletes, recreational runners, and younger participants for organized races, with information and resources covering registration, results, photographs and videos, gifts, routes, and travel arrangements. The material highlights La Sansi Sant Feliu de Llobregat, a popular urban 5-kilometre race organized with the town council.

Its inaugural 2012 edition started near the Andrei Xepkin sports pavilion and finished on the athletics track, while a second edition was announced for November 2013. The event included races for children as well as adults, and participants received commemorative backpacks containing sponsor products. La Sansi also shares race regulations, training plans, press coverage, and event updates, helping participants prepare and follow each edition.

Past coverage records strong demand, with entry places selling out before race day, and features results and media from the event. Overall, the brand focuses on accessible community athletics while welcoming elite runners and well-known sports figures