24H de P

24H de P is an endurance running event in Santa Maria da Feira, Portugal, focused on time spent running rather than a set distance. Participants can select 24-hour, 12-hour, or 3-hour races. The schedule also features a night marathon, all conducted on a circuit designed for continuous laps and extended periods of running. The event is organized by Clube de Atletismo de Lamas, with backing from the Municipal Chamber of Santa Maria da Feira. Now in its fourth edition, the race's format presents a demanding challenge on Portugal’s running calendar. The primary difficulties involve managing fatigue, pacing, running through the night, and the mental effort of maintaining movement for extended durations.