On Christmas Eve, a surfer from Santa Cruz rode a wave at Mavericks that witnesses say was over 100 feet tall, which would set a world record. But how do you reliably measure a wave?

Alo Slebir is no stranger to huge waves at Maverick's, but on December 23 he rode one that might have broken the 100-foot ...

Slebir told SFGATE Monday that he’s not dwelling on the wave’s exact height. “Regardless of the number, it really doesn’t matter how big the wave was to me,” Slebir said. “It was ...