Duathlon events in Portugal for 2026 are organized by the Federação de Triatlo de Portugal, representing a comprehensive national calendar of competitions across various regions. These events offer diverse distances and formats, including individual and team competitions, making them accessible to a wide range of athletes from beginners to elite levels.

The competitions are linked to national championships and club series, fostering a competitive yet inclusive atmosphere. The events often take place in scenic locations throughout Portugal, providing athletes with unique landscapes and terrain challenges. The atmosphere is typically vibrant and community-focused, with some events featuring relay formats and categories for different age groups.