All streets around Copley Square (from 6 a.m.); all streets east of Massachusetts Avenue (from 10 a.m.); and all streets west of Massachusetts Ave. (from 11:30 a.m.). Massachusetts Turnpike Exit 22 eastbound (Copley Square) will be closed at 10 a.m.

Beacon Street: from Chestnut Hill Avenue to Brookline town line (Cleveland Circle). The entire length of Beacon Street in Brookline is closed since it is part of the race's route.
Berkeley Street: from Columbus Avenue to Newbury Street.
Boylston Street: from Massachusetts Avenue to Arlington Street.
Chestnut Hill Avenue: from Commonwealth avenue to Brookline town line (Ayr Road).
Clarendon Street: from Commonwealth Avenue to Stuart Street.
Cleveland Circle
Commonwealth Avenue: from Beacon Street to Gloucester Street and from Newton city line (Lake Street) to Chestnut Hill Avenue.
Dalton Street: from Belvidere Street to Boylston Street.
Dartmouth Street: from St. James Avenue to Newbury Street.
Exeter Street: from Commonwealth Avenue to Huntington Avenue.
Fairfield Street: from Boylston Street to Newbury Street.
Gloucester Street: from Commonwealth Avenue to Boylston Street.
Hereford Street: from Commonwealth Avenue to Boylston Street.
Massachusetts Avenue: from Beacon Street to Belvidere Street.
Newbury Street: from Fairfield Street to Massachusetts Avenue.
Providence Street: from Arlington Street to Berkeley Street.
Public Alley #440: from Exeter Street to Dartmouth Street.
St. James Avenue: from Arlington Street to Dartmouth Street.
Stuart Street: from Arlington Street to Dartmouth Street.
Trinity Place: from St. James Avenue to Mass. Turnpike on-ramp.

Suburbs

Newton: Washington Street (Rte. 16) and Commonwealth Ave. (Rte. 30) will close Monday from approximately 11:45 a.m. to 3:30 p.m.

Wellesley: Central Street (Rte. 135) and Washington Street (Rte. 16) will close Monday from approximately 11:15 a.m. to 3 p.m.

Natick: East and West Central streets (Rte. 135) will close Monday from approximately 11:15 a.m. to 3 p.m.

Framingham: Waverly Street (Rte. 135) will close Monday from approximately 11:15 a.m. to 2 p.m.

Ashland: Union Street and Waverly Street (Rte. 135) will close Monday from approximately 8:30 a.m. to 1:15 p.m.

Hopkinton: East Main Street (Rte. 135) will close Monday from approximately 8 a.m. to 1 p.m.