Observed arrival · 2026-09-26
Poker Math Lab: Hold’em odds without the shortcut
A free set of Texas Hold’em calculators and guides for draw odds, pot odds, hand probabilities, and all-in equity.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Texas Hold’em players checking draw and call odds
- Worth noticing
- Its hand-probability page says it enumerates all 133,784,560 seven-card hands; figures are checked using a second method.
Field notes
The outs-and-pot-odds calculator asks for outs, pot size, and bet size, then shows the chance of completing and the price of a call. The site also explains its counting approach: complete enumeration, with published tables checked against a second method. Its examples include a 35.0% flop-to-river completion rate for a flush draw and a comparison with the familiar rule of 4.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue