Sweeps McDonald's Flavor BattlePlease enter the current Sweepstakes instead of this expired one. Cast your vote daily for a chance to win the McDonald’s Flavor Battle Sweepstakes. You must be 21+ to enter. Round III prizes include 334 winners of a $3 McDonald’s® Arch Card®. You may enter this round between Nov. 15 and ends Dec. 6 which breaks down to about 15 winners per day


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