Expected Value in Sports Betting
Expected value is the average result of a bet repeated forever. It is the only number that separates a good bet from a bet that happened to win.
6 min read
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The analytics desk covers the measurement side of betting — implied probability, vig removal, expected value, return on investment and sample size. The work is descriptive: it explains how a number is calculated and what it can support, never what anyone should wager.
Expected value is the average result of a bet repeated forever. It is the only number that separates a good bet from a bet that happened to win.
6 min read
A posted price is two things at once: the sportsbook's estimate of a probability, and its charge for taking the bet. Separating them is the single most useful calculation in betting.
Updated 5 min read
Nobody remembers their betting record accurately. The wins are vivid, the losses blur, and the net figure people quote is reliably too good.
5 min read
Parlay payouts look generous until you notice that the sportsbook's margin is applied to every leg and then multiplied. Here is the arithmetic, and what it costs.
Updated 5 min read
BestSlip Analytics Desk
Odds & Analytics
The analytics desk covers the measurement side of betting — implied probability, vig removal, expected value, return on investment and sample size. The work is descriptive: it explains how a number is calculated and what it can support, never what anyone should wager.
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