Chase the Ace is a form of lottery that has gained popularity since 2013 in parts of Canada as a way to raise funds for charities. It is also known as Crown the King, Queen of Hearts Jig the Joker, and Catch the Ace. 

  

The jackpot accumulates from week-to-week until it is won, and the game is then over. Each week participants buy lottery tickets. The funds from ticket sales are divided into three parts: 

 

• Organizers typically retain 50%, 

• The winner of the draw takes 20%, and 

• The accumulated jackpot grows by 30% of this week's sales. 

 

The raffle winner also then draws a card from a deck of playing cards and wins the accumulated jackpot if the ace of spades is drawn. If not, the reduced deck is kept for the following week's game.