BANGKOK, Thailand - The top three on the singles leaderboard remained in tact after Squad 2 on Thursday, leaving Team USA's Walter Ray Williams Jr. in second place with 1,316 and still alive for the medal round with three six-game preliminary squads remaining.Bahrain's Mohamed Yusuf Sultan only needed 203 in the final game to pass Williams and 204 to pass Germany's Kai Günther to move into the lead, but only doubled once and opened three times en route to a 162. Sultan finished with 1,276 to move into fourth place. Chinese Taipei's Shu Liang-Chen is third with 1,283.Team USA's Rhino Page and Bill Hoffman take to the lanes at 6 p.m. local time (7 a.m. EDT), while Tommy Jones and Chris Barnes will bowl at 9 a.m. Friday (10 p.m. EDT Thursday) on the fourth of five squads.