Kenya’s John Korir won the 2025 Boston Marathon in 2:04:45, 13 years after his brother Wesley’s 2012 triumph—making them the first sibling duo to win the iconic race. With over 30,000 participants and a $1.2 million prize pool, the 129th edition of the world’s oldest marathon reaffirmed Kenya’s long-distance legacy and Korir’s rising stature in elite running.