Four drills built to calibrate your gut: equity estimation, outs & odds, pot-odds decisions, and preflop matchups. Guess, get the truth, repeat until it feels like reflex.
Multiply your outs × 2 for one card to come (turn or river). Multiply by 4 for two cards to come (flop with both turn + river to come). Quick mental shortcut, accurate within ~2%.
Open-ended straight draw: 8 outs
Flush draw: 9 outs
Gutshot: 4 outs
Two overcards: 6 outs
Flush + OESD: 15 outs (combo monster)
Required equity = bet ÷ (pot + bet + bet). If villain bets pot, you need ~33%. Half-pot? ~25%. Quarter-pot? ~17%. Memorize these three and you can ballpark almost any spot.
Pair vs. two undercards: ~83/17
Pair vs. two overcards: ~54/46 (race)
Pair vs. one overcard: ~70/30
AK vs. lower pair: ~46/54 (coin flip)
Dominated (AK vs AQ): ~74/26
Direct pot odds aren't everything. If you can win more on later streets when you hit, you can call with worse immediate odds. The deeper the stacks, the more this matters — especially with hidden hands like sets and straights.
The flip side: drawing to a hand that may still lose (e.g., bottom of a straight, weak flush). When you "hit" you might pay off a bigger hand. Discount your equity in those spots.