How Spreads, Moneylines & Picks Work

What is a point spread?

A point spread is a number set to handicap the stronger team, so both sides of the bet are roughly equally likely to pay out. If a team is favored by 7.5 points (written -7.5), a bet on them only pays off if they win by MORE than 7.5. The underdog (+7.5) pays off if they lose by less than 7.5, tie, or win outright. Spreads are usually set at a half-point specifically so a real final score can't land exactly on the number and force a push (a tie, where the bet is refunded).

What is a moneyline?

A moneyline is a bet purely on who wins the game -- no spread, no margin, just the winner. The number reflects how likely each side actually is to win. A negative moneyline (e.g. -225) shows how much you'd need to risk to win $100; a positive moneyline (e.g. +225) shows how much a $100 bet would win. Favorites always show negative, underdogs always show positive.

Spread vs. moneyline: what's the real difference?

A spread bet is a bet on the MARGIN of victory -- how much a team wins or loses by, not just whether they win. A moneyline bet is a bet on the WINNER only, priced by how likely that outcome actually is. A heavy favorite's moneyline often pays very little (risking a lot to win a little), while their spread bet is priced closer to even odds, since the spread itself has already absorbed most of the real mismatch between the two teams.

What does "covering the spread" mean?

A favorite "covers" if they win by MORE than the spread. An underdog "covers" if they lose by LESS than the spread, tie, or win outright. A team's record against the spread (ATS) is tracked separately from their real win-loss record -- a team can be favored, lose the game, and still cover if they lost by fewer points than the spread predicted.

Why do spreads and moneylines move before kickoff?

Real sportsbook lines move for two real reasons: money/bet volume on each side (books adjust to try to balance action), and new information -- injuries, weather, a lineup change -- between when a line first opens and when the game actually kicks off. That's part of why spreadsim shows the model's own, independently-computed prediction right next to the real live market line instead of just one number: they can genuinely diverge for real reasons, not because one is simply right and the other wrong.

NFL vs. NCAA football odds: real differences worth knowing

NCAA college football has a far wider talent gap between its best and worst teams than the NFL does -- real blowouts and spreads of 30+ points show up regularly in a way they almost never do in the NFL, where 32 teams draft from the same limited talent pool. NCAA also has well over 100 FBS teams playing every week, so lines on lower-profile matchups can be less efficiently priced simply because far fewer people are betting on them, compared to the NFL's 32 heavily-bet teams.

Picks, predictions, and odds -- what spreadsim actually means by each

A prediction is the model's own independent number for a game -- a spread, a moneyline win probability, or a player prop -- computed the same real way for every game, every week. A pick is a specific prediction the model is especially confident in, ranked and surfaced on the Top Picks page; each pick stands on its own, never bundled into a combined parlay score. Odds (the market) are real, live prices from actual sportsbooks, shown for direct comparison against the model's own number -- not a recommendation of where or whether to bet.

Does a bigger spread always mean a bigger mismatch?

Generally yes -- a real sportsbook (and spreadsim's own model) sets a wider spread specifically because the two teams are expected to be further apart in quality, not arbitrarily.

Can a point-spread bet end in a push?

Only if the spread is a whole number (e.g. -3, not -3.5) and the real final margin lands exactly on it -- in that case the bet is refunded, not won or lost. Half-point spreads exist specifically to prevent this.

Is a moneyline bet riskier than a spread bet?

It depends which side. A big favorite's moneyline requires risking a lot to win a little, so a string of small wins can still lose money overall if even one bet misses. An underdog's moneyline pays more per dollar risked, but wins less often. A spread bet on either side is usually priced closer to an even risk-to-reward ratio.

Why does spreadsim show a prediction AND a real market line for the same game?

Because they're answering genuinely different questions -- see "Why do spreads and moneylines move" above. Showing both, side by side, is more honest than only ever showing the number that happens to agree with the other.