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If a game or competition that gives prizes to winners is based on skill, such as a car race, marathon, or shooting competition, it's not considered gambling. (However, other laws or restrictions may apply in order to make such competitions legal.)
Gambling comes in many different forms. Commercial gambling includes lotteries, instant lotteries, number games (such as Lotto and Keno), sports betting, horse betting, poker and other card games, casino table games (such as roulette and craps), bingo, and electronic gaming machines (EGMs).