Useful poker odds charts for the game of Texas Hold'em. the "standard poker odds charts" below, which give both the percentage and ratio odds of completing. Using The "Outs" To Calculate Texas Hold'em Poker Odds 37 to 9 This Simplifies Down To: (or 20% for those that like to use percentages) In other words. A single card deck is used. All cards count as its poker value. Aces may be high or low. One player is designated as the dealer, usually with.