Streets closed for L.A. Marathon By Anna Gorman March 18, 2012, 6:40 a.m. Streets around Los Angeles County were closed off Sunday morning in preparation for the L.A. Marathon. The marathon begins at Dodger Stadium and ends in Santa Monica, passing through parts of West Hollywood and Beverly Hills along the way. A few freeway ramps along the 101 Freeway will also be closed for part of the day. The streets closed at about 4 a.m., and nearly all will reopen by about 2 p.m. A map of the closures is available at www.lamarathon.com.