NO PURCHASE OR PAYMENT NECESSARY TO ENTER OR WIN. "Instant Win Game ("Game") & Underdog Sweepstakes" starts February 23, 2012 at 12:00 A.M., ET. Underdog Sweepstakes registration period ends March 15, 2012 at 11:59:59 A.M., ET. Game ends April 2, 2012 at 11:59:59 P.M., ET. Open to legal residents of the 50 U.S./D.C., who, as of time of entry, are 18 years or older. Go to www.underdogbracket.com for Official Rules including important registration, entry & participation details, how to participate without a purchase or payment of money, prizes, odds of winning, etc. One Game Play per day. Residents of Puerto Rico are not eligible. Void in P.R. & where prohibited. The Game and this Sweepstakes are not affiliated with any collegiate basketball league or association. Sponsor: Diamond Foods, Inc., P.O. Box 1727 Stockton, CA 95201-1727.