The Marathon, Boston 2 Big Sur, the Relay, 21-Miler, 11-Miler and 12K are SOLD OUT. Wait lists for these events are also closed.

The 5K is closed for online registration but there will be limited in-person registration at the Expo on Friday, April 27th, Saturday, April 28 or race morning at the Marathon Finish Village.

Online registration is still available for Relay members to join their team and the By-the-Bay 3K.