Sabastian Sawe became the first runner to officially break the two-hour marathon barrier at the London Marathon with a time of 1:59:30.Ethiopian runner Tigst Assefa secured a world record in the women-only category, while wheelchair athletes Marcel Hug and Catherine Debrunner defended their respective titles.This historic performance by Sawe was supported by advanced racing shoes and standardized testing to confirm his clean status amid shifting competitive dynamics.