Overround, expected value, bankroll sizing and streaks: the arithmetic behind every bet, worked through with numbers.
4 new explainers · 8 from the earlier site
Matched betting turns a $50 free bet into $35–$45 of real cash by hedging every outcome on a betting exchange. Arbitrage betting, by contrast, locks in a profit only when the implied…
· 4 min read
For 1,000 independent bets at a 50 percent win rate, the binomial model predicts 500 wins and a standard deviation of 15.8 wins (the square root of 1,000 × 0.5 × 0.5). A losing run of ten…
· 3 min read
The Kelly criterion is not a stake-size rule you can pull off a shelf. It is a formula that requires you to supply a number—your estimate of the win probability—and every dollar you risk…
· 4 min read
The roughest shortcut in betting converts any decimal odds number directly into a percentage: implied probability equals one divided by the decimal quote. Even a two-outcome market…
· 4 min read
Guides and notes written before the relaunch; addresses are unchanged.
You sit at a game with a “96% RTP” label. You play all weekend. Your balance still drops. You did not do anything wrong. The label is not a promise. It is a long-term…
You and a friend load the same slot. Both say “96% RTP.” You play 20 minutes and lose half your stack. Your friend hits a bonus and walks away up 300%. The game is the…
A quick scene at a real table It is late. The studio lights are soft. A dealer smiles and spins. My friend Adam taps a red chip. “Five reds in a row,” he says. “Black is…
Game selection means you choose where and when to play, not just how to play. It is the skill of saying “yes” to some games, rules, limits, and spots, and “no” to…
The room is loud, then still. A slot lights up. A small crowd forms. “That one is hot,” someone says. At a roulette table, a player swears the dealer has a “signature”…
It’s a probability measure. House edge tells you what percent of your wager a game will cost you for every round or spin over a long session. For instance, a house edge…
You play well, but luck still swings hard. Three hands. Three flips. All tails. You drop six buy-ins in one night. You did not tilt. You did not punt. It still hurts.…
Baccarat is not very hard to learn, but beneath the tidy structure of the table is a collection of rules that create mathematical models. They dictate how the banker…
