If you bet on 0 or 00 on an American wheel, and your bet hits, you'll get a payout of 35 to 1. If you place a "row" bet (betting on both 0 and 00), and your bet hits, you'll get a payout of 17 to 1.

The 0  (single zero) and the 00  (double zero) are the green slots on the roulette wheel. These pockets could receive a 35:1 payout if hit straight up. If there's a split, the payout could be 17:1. This type of bet is somewhat risky, but the payouts could be worth it.

Number 13  Universally the Unluckiest Number\n\n Said to refer to Judas, who was the 13^th disciple and who betrayed Jesus at the Last Supper, number 13 is perhaps one of the least played numbers in any form of betting.

So the probability of getting a red on any single spin is 18/37 or 18/38. The probability of getting 13 in a row is (18/37)^13 or (18/38)^13, or 1:11697 or 1:16544 respectively.