Enter to win the D-backs Playin' Hardball Trivia Sweepstakes. Join us every week, answer the question and you will be entered for your chance to win the weekly prize that includes four (4) baseline reserve tickets to a 2008 D-backs game, an autographed baseball, subscription to D-backs Insider magazine, an Arizona State Parks annual pass, and a two-night stay at one of the Arizona State Parks to start off your annual pass of fun!

Plus, each weekly winner will be entered into a Grand Prize drawing to win a suite at a 2009 Diamondbacks home game and one (1) V.I.P. tour for 16 people at Kartchner Caverns.

See Official Rules for complete prize details and drawing deadlines.

NO PURCHASE NECESSARY TO ENTER OR WIN. Enter by 11:59 pm Mountain Time on April 8, April 15, April 22, April 29, May 6, May 13, May 20, May 27, June 3, June 10, June 17, June 24, July 1, July 8, July 15, July 22, July 29, August 5, August 12, August 19, August 26, September 2, September 9 and September 14. Void where prohibited. Twenty-four Weekly (24) prizes and one (1) Grand prize will be awarded. Open to legal residents of AZ who are eighteen (18) years of age or older at the time of entry. Odds of winning depend on the number of eligible entries received. Enter online or by mail. Limit one (1) entry per person regardless of method of entry. See Official Rules for details.