La nuit AJT - Trévoux is a semi-nocturnal urban trail race held in Trévoux, starting at the Bas-Port along the Saône. Organized by AJT Saône Vallée in late September, it features three adult race distances: 5 km, 10 km, and 21 km, alongside a children's race and a walking event.
The event focuses on local participation and accessibility over an elite competition, allowing participants to select a short city trail run or a half-marathon distance after sunset. The race is put on by AJT, the Association des joggeurs et des traileurs de Saône Vallée. One recent running saw 260 participants, following a prior edition with 300 competitors.