Scheduling the contest is always a gamble. It has been held nine times since its debut in 1999, with some years lost to poor conditions - or breakdowns on the business side. But on Friday, some of the waves appeared to approach 50 feet on their faces, a bounty compared with last year's waves, which topped out at about 20 feet.

Hundreds of surf enthusiasts weren't satisfied with watching the action on TV, and tried to make their way to the beach and bluffs at Pillar Point. But a heavy presence by the county Sheriff's Office kept most people out.

The beach was shut down for contest viewing after 2010, when huge waves crashed over rocks and a jetty and injured 13 onlookers.

"I didn't think that it would be this difficult to see something," said Vanita Narayan of Hayward, who strolled on a beach with her daughter, only to be turned away. "If you do manage to get in, they'll find you and kick you out."

The Oceano Hotel, though, had a concert-like atmosphere, with fans cheering among food trucks, beer tents and live music acts.

"There's much more of a connection if you're here," said Robin Cross, who drove from San Francisco to watch with a friend. "It's not just a screen. It's a party."

How they're judged

Impressing the judges at the Mavericks surf contest comes down to one basic element: launching the deepest, most critical takeoff and making it to the bottom of the wave - the bigger, the better. That type of performance scores much higher than style, maneuvers or other basics of normal events. In each heat, a surfer's point total represents his two highest-scoring waves, the best score counting double. Points are allotted on a 1-to-10 basis, 10 being the highest.