Boston Marathon 2026 Underway

Defending champions John Korir and Sharon Lokedi are among the elite athletes looking to repeat their historic victories in cool, overcast conditions.

The event also features several notable celebrities, including an astronaut and local sports heroes, who are running for various charities.

Security remains tight across the city as fans line the streets to cheer on the participants on this Patriots' Day.

The marathon serves as a critical test for Boston's tourism sector, which has faced recent slowdowns in international visitation.

Organizers have introduced new aid station configurations to better accommodate the record number of participants.