Lao League 1 (Lao: ລາວພຣີເມຍລີກ, Lav Phimialik), known as Pepsi Lao League 1 for sponsorship reasons, is an association football league.

Over the course of a season, which runs from February to September, each team plays against the others 3 times in a triple round-robin.

3 points are awarded for a win, one for a draw and zero for a loss.

The teams are ranked in the league table by points gained, then goal difference, then goals scored and then their head-to-head record for that season.

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