When the L.A. Marathon kicks off on Sunday, March 16, you’re going to want to avoid driving near some of the city’s busiest areas starting at 4 or 5am and until later in the morning or afternoon: Steer clear of Downtown until a little after 10am, avoid Hollywood (specifically near Hollywood Boulevard) until around noon and Beverly Hills until 1pm.

Thousands of runners and spectators across the world will be in Southern California this weekend for the 40th Los Angeles Marathon. This year, the LA Marathon falls on Sunday, March 16 and it's a sold-out event.

The 40th L.A. Marathon starts at 7 a.m. Sunday at Dodger Stadium and finishes in Century City. More than 25,000 people are expected to participate.