Gran Triatlón Madrid is a mass-participation triathlon held in Casa de Campo, Madrid's large central park. It is promoted as Spain's largest popular triathlon, featuring a program with several race options instead of a single format. Participants can select Standard, Sprint, or a women's Super Sprint, and the event welcomes both affiliated and unaffiliated athletes. The main racing begins Saturday morning, with bib collection available Friday afternoon and again before each race.
The event center is located by the lake, near the football field and transition area within Casa de Campo. Standard-distance participants start first, followed by Sprint waves later in the morning. The women's Super Sprint offers a shorter option for those new to triathlon. Trophies are presented the same morning, making for a swift progression from setup to competition to awards. Its slogan, "AcTRÍvate a lo GRAnde," reflects the goal: encouraging more people to train, race, and engage with the three-sport discipline in the center of Madrid.