Williams, 37, played at CSU San Bernadino from 1998-1999 and is a veteran of several professional leagues. The 6-7, 235-pound swingman most recently suited up for the Los Angeles Lightning of the IBA while also maintaining a presence in the Venice Basketball League.
De La Fuente, who tunrs 24 on Wednesday, is a 6-6 shooting guard who's played for several Spanish clubs, most recently Universidad de Vallodolid.
Back-to-back defending champion Hugh "Baby Shaq" Jones and 2012 runner-up Lukas Kraus were both knocked out in the early rounds of the single elimination five-minute game format.
The tourney's inaugural champ from 2010 Izeah "Clutch" Bowman also made an early exit.
Williams won six consecutive games in the cold and wind to capture the championship trophy.
Meanwhile 5-5 slam dunk artist Porter Maberry and the Warrior Girls also performed for the select audience.
NBA All-Star Blake Griffin and actress/singer Coco Jones hosted the event.
An anonymous source told Examiner.com that the competition will move to Taiwan in 2014 and return to Alcatraz in 2015 continuing to alternate between the islands going forward.
Previous host Rajon Rondo taught a skills clinic in country and attended last year's qualifier final at the Chiang Kai-shek Memorial Hall in Taipei.
For more information visit the King of the Rock website.