A moneyline bet is the simplest sports betting format: pick which team or competitor wins outright. No spread, no handicap, no point total — just who wins. Moneyline odds reflect the probability of each side winning, with favorites priced at negative American odds and underdogs at positive odds.
How moneyline odds work
Moneyline odds in American format show profit relative to a $100 bet:
- Favorite (negative odds, e.g., -150): bet $150 to win $100 profit. Implied probability: 60%.
- Underdog (positive odds, e.g., +130): bet $100 to win $130 profit. Implied probability: 43.5%.
In decimal format: -150 = 1.667 decimal (1.67x return per dollar staked, including stake). +130 = 2.30 decimal.
For international markets and parlay calculations, decimal format is more intuitive. For US single-bet display, American format is standard.
When moneylines make sense
Moneylines are best for:
- Heavy underdogs you believe in. A +250 underdog you think is 35% to win has substantial expected value (35% > 28.6% implied).
- Sports where spreads aren't useful. Baseball, hockey, and soccer have lower scoring; spreads are less informative. Moneylines are the standard format.
- Parlays of multiple teams' winners. Moneyline parlays are the most common parlay structure.
- Live betting where momentum has shifted. Live moneyline updates continuously; sharp shifts produce exploitable price gaps.
Moneyline vs spread
Spread bet: Bet on margin of victory adjusted by a number. Most useful for football and basketball where spreads are wide and meaningful. Standard juice -110/-110.
Moneyline bet: Bet on outright winner. Pricing reflects each team's true win probability. Juice varies — moneyline juice is implicit in the asymmetric odds.
When to use which: If you have a strong opinion on margin of victory, use spread. If you have a strong opinion on winner outcome, use moneyline.
Common moneyline mistakes
- Always betting heavy favorites. -300 favorites pay $33 per $100. They lose more often than recreational bettors realize. Long-run profitability requires winning percentages above implied probability.
- Ignoring vig. A -150/+130 game has implied probabilities summing to 60% + 43.5% = 103.5%. The 3.5% over 100% is the operator's vig. Compute no-vig probabilities for fair pricing comparisons.
- Betting moneyline parlays without correlation analysis. Parlay multiplication assumes independence. Correlated multi-leg moneyline bets (multiple favorites in same league, same date) may have hidden correlation that reduces real probability.
Frequently asked questions
What is a moneyline bet?
A wager on which team or competitor wins outright. No spread, no point handicap — just the winner. Favorite priced at negative American odds; underdog at positive odds.
How do I read moneyline odds?
Negative odds (e.g., -150): bet that amount to win $100. Positive odds (e.g., +130): bet $100 to win that amount in profit. Implied probability for negatives: |odds| / (|odds| + 100). For positives: 100 / (odds + 100).
When should I bet moneyline vs spread?
Moneyline for sports without strong spread markets (baseball, hockey, soccer) or for outright underdog bets where you believe the underdog has higher probability than implied. Spread for football and basketball where margin of victory matters.
Can I parlay moneyline bets?
Yes — moneyline parlays are the most common parlay structure. Multiply the decimal odds of each leg, then multiply by stake to compute payout.
What's the typical hold on moneyline markets?
Hold varies based on the spread between favorite and underdog. Closely-priced moneylines (e.g., -110/+105) have ~4% hold. Wide-spread moneylines (e.g., -300/+250) can have 8%+ hold.