Seif is best known for being the only player to win two WSOP bracelets in back-to-back events in 2005 in the $1,500 limit hold'em shootout and the $1,500 no limit hold'em events. He bested a field of 2,013 players to win his second bracelet at a final table that included poker professionals Minh Nguyen, Greg Raymer, Dave Ulliott, and Bill Gazes among others.