The Lake Plastira Standard Triathlon is an individual Olympic-distance race held at Lake Plastira, a mountain lake in Greece bordered by green slopes. This race is part of a larger multisport event that also features a Sprint Triathlon and an Aquathlon. The Standard race begins with a 1,500-metre swim.
The timing is set to provide favorable weather conditions. The region's altitude and dense vegetation contribute to cooler temperatures, with low humidity and minimal wind. Both the Standard and Sprint triathlons are part of the WTL Triathlon league. The event is organized by the Municipality of Lake Plastira and whynot, with backing from national culture and tourism organizations.