Catch the Ace is a progressive lottery operated by three service groups in Lambeth; the Lambeth Lions, the London Lambeth Rotary and the Lambeth Legion Branch 501. Fifty percent of all ticket sales is paid to the winners, and the remaining profits go to the selected charities from the three service groups. Weekly tickets are sold in which the buyer will select an envelope number which represents corresponding envelopes on the playing board. When the weekly winning ticket is drawn, the owner of that ticket will receive 20% of the total weekly sales. The envelope number identified on the winning ticket is then removed from the playing board and opened. If it contains the Ace of Spades, then the winner will also win the jackpot (an additional 30% of the weekly sales). The three clubs have guaranteed a minimum jackpot of $3,000. If the envelope selected does not contain the Ace of Spades, then the 30% is placed in an accumulative jackpot, which will grow each week the Ace of Spades is not found after the initial guarantee of $3,000 is surpassed.