122nd annual Boston Marathon

The Boston Marathon is an annual marathon hosted by several cities in greater Boston and eastern Massachusetts. It is always held on Patriots Day, the third Monday of April.

The Boston Athletic Association (B.A.A.) has organized the Boston Marathon since the event’s inception in 1897. The Boston Marathon is the world's oldest annual marathon and ranks as one of the world's most prestigious road racing events. The event attracts 500,000 spectators each year, making it New England's most widely viewed sporting event.

For the latest information on safety and transportation updates, visit the BAA's website.