Pot Odds & Equity Calculation

🧮 What Are Pot Odds?

Pot odds compare the current pot size to the cost of a call — the fundamental math behind every profitable decision.

Formula: Pot Odds = Cost to Call / (Current Pot + Cost to Call)

💰 Example

Component	Amount
Current pot	$100
Opponent bets	$50
Your call	$50
Pot odds	50 / (150 + 50) = 25%

📊 If your chance of winning > 25%, it's a profitable call.

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🎯 The 4-2 Rule (Quick Equity Estimation)

Street	Formula	Example (9 outs)
Flop → River	Outs × 4	9 × 4 = ~36%
Turn → River	Outs × 2	9 × 2 = ~18%

🃏 Example Hand

You hold A♠ K♠, flop is Q♠ 7♦ 2♠

Draw	Outs	Count
Flush draw	9 spades remaining	🃏🃏🃏🃏🃏🃏🃏🃏🃏
Overcards	3 Aces + 3 Kings	🅰️🅰️🅰️ 🤴🤴🤴
Total	15 outs

📊 Flop equity ≈ 15 × 4 = 60% — you're actually the favorite!

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📊 Common Draw Equity Reference

Draw Type	Outs	Flop→River	Turn→River	Icon
Flush Draw	9	~35%	~19%	🌈
Open-Ended Straight	8	~31%	~17%	📏
Gutshot	4	~16%	~9%	🎯
Set Mining	2	~8%	~4%	🎲
Overcards	6	~24%	~13%	⬆️

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🧠 Implied Odds

Sometimes direct pot odds aren't enough, but future bets you can win make the call profitable.

When to Consider Implied Odds

✅ Deep stacks — both you and opponents have chips behind

✅ Disguised draw — opponents won't see it coming (straight with 65s on 7-8-K)

✅ Aggressive opponent — they'll likely fire again on later streets

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🔄 Decision Flow

1. Count your outs
      ↓
Estimate equity (4-2 rule)
      ↓
Calculate pot odds
      ↓
Compare: equity > pot odds?
      ↓
Consider implied odds
      ↓
Make the decision ✅/❌

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🧾 Quick Memory Guide

Situation	Rough Odds Needed
Flush draw	~4:1 (can call up to 1/3 pot)
OESD (open-ended)	~5:1
Gutshot	~11:1 (need great implied odds)
Pair → Trips	~22:1 (almost never profitable alone)

💡 Math is foundation, not everything. Combine with reads, position, and stack sizes.