Sports betting, explained simply
Clear, jargon-free guides to understanding odds and lines. Whether you're new to betting or just want the numbers to make sense, start here.
Odds & basics
American, decimal, and fractional odds — what the numbers mean, how payouts work, and how to read implied probability.
OddsThe most common number in sports betting — what it costs, why it's everywhere, and what it tells you about the sportsbook's margin.
OddsHow sportsbooks build their margin into every line, how to calculate it, and why it's the biggest factor in long-term results.
Bet types
The three core bets in plain English — point spreads, moneylines, and over/unders — with simple examples.
Bet typesHow parlays combine legs for bigger payouts, how to calculate the true odds, and when they actually make sense.
Bet typesWhen a bet ties the line, your stake is refunded. Learn when pushes happen, how they affect parlays, and why half-points exist.
TerminologyAgainst the spread — the most common way to measure a team's betting record and why it matters more than straight-up wins.
Lines & movement
Where a line starts, where it ends, and why the difference — closing line value — is what sharp bettors track.
LinesWhy betting lines move, what steam and reverse line movement mean, and how to read a line's history.
LineScout puts these ideas to work: every game shows its opening line, how it has moved, and how the current number compares across sportsbooks. See it on live games →