2013 ARNOLD SPORTS FESTIVAL INVITATION Promoted by: USA Powerlifting Federation USA Powerlifting invites members from the USAPL, NAPF & Central American Federations to participate at the 2013 Arnold Sports Festival. Events to be held are the Raw Challenge, Pro American Powerlifting Championships, GNC Pro Deadlift Competition, Titan Pro Bench Bash Competition, & Ohio Invitational.