Betting Education Center
Learn how sports betting works, understand different bet types, and master odds calculations
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Understanding American Odds
American odds are displayed as either positive (+) or negative (-) numbers. They tell you how much you need to bet or how much you can win.
Negative Odds (-)
Shows how much you need to bet to WIN $100 profit
Example: -150
Bet $150 → Win $100 profit
Total return: $250
FORMULA:
Profit = Stake × (100 / |Odds|)
Payout = Stake + Profit
Positive Odds (+)
Shows how much profit you WIN on a $100 bet
Example: +200
Bet $100 → Win $200 profit
Total return: $300
FORMULA:
Profit = Stake × (Odds / 100)
Payout = Stake + Profit
Quick Tip
Negative odds = Favorite (more likely to win, lower payout)
Positive odds = Underdog (less likely to win, higher payout)
Moneyline Bets
Simplest bet type - just pick the winner
How It Works
- Pick which team will win the game outright
- No point spreads or totals involved
- Your team just needs to win by any margin
- ~Tie games result in a "push" (refund)
Example Game
Kansas City Chiefs-150
Denver Broncos+130
Chiefs are favored (negative odds)
Broncos are underdog (positive odds)
Calculation Examples
Betting on Favorite (Chiefs -150)
Stake: $150
Profit: $150 (stake) × (100/150 odds) = $100
Payout: $250
Betting on Underdog (Broncos +130)
Stake: $100
Profit: $100 (stake) × (130/100 odds) = $130
Payout: $230
Point Spread Bets
Level the playing field with a points handicap
How It Works
- •Favorite must win by MORE than the spread
- •Underdog can lose by LESS than the spread (or win)
- •Spread is added/subtracted from final score
- ~Exact spread margin = "push" (refund)
Example Game
Buffalo Bills-7.5 (-110)
Miami Dolphins+7.5 (-110)
Bills must win by 8+ points
Dolphins can lose by 7 or fewer points
Example Outcomes
Bills Win 28-14
Bills win by 14 points
Bills -7.5 WINS
Dolphins +7.5 LOSES
Bills Win 21-17
Bills win by 4 points
Bills -7.5 LOSES
Dolphins +7.5 WINS
Dolphins Win 24-21
Dolphins win outright
Bills -7.5 LOSES
Dolphins +7.5 WINS
Over/Under (Totals)
Bet on the combined score of both teams
How It Works
- •Over: Combined score will be MORE than the line
- •Under: Combined score will be LESS than the line
- •Add up both teams' final scores
- ~Exact total = "push" (refund)
Example Game
Rams vs Cardinals
Over 47.5-110
Under 47.5-110
Total points must be 48+ (Over) or 47 or fewer (Under)
Example Outcomes
Final: 28-24 (52 total)
52 > 47.5
Over 47.5 WINS
Under 47.5 LOSES
Final: 21-17 (38 total)
38 < 47.5
Over 47.5 LOSES
Under 47.5 WINS
Final: 24-24 (48 total)
48 > 47.5
Over 47.5 WINS
Under 47.5 LOSES
Payout Calculator Examples
Negative Odds Examples
Cowboys -163
Stake: $100
Profit: $100 (stake) × (100/163 odds) = $61.35
Total Payout: $161.35
Lakers -200
Stake: $50
Profit: $50 (stake) × (100/200 odds) = $25
Total Payout: $75
Chiefs -110
Stake: $25
Profit: $25 (stake) × (100/110 odds) = $22.73
Total Payout: $47.73
Positive Odds Examples
Underdog +150
Stake: $100
Profit: $100 (stake) × (150/100 odds) = $150
Total Payout: $250
Longshot +300
Stake: $50
Profit: $50 (stake) × (300/100 odds) = $150
Total Payout: $200
Heavy Underdog +500
Stake: $20
Profit: $20 (stake) × (500/100 odds) = $100
Total Payout: $120
Important Tips
Betting Basics
- •This is practice money - Learn without risk!
- •Start small - Don't bet your entire bankroll
- •Shop for lines - Different sportsbooks have different odds
- •Understand the sport - Knowledge gives you an edge
Strategy Tips
- •Track your bets - Use the My Bets page to analyze performance
- •Don't chase losses - Stick to your strategy
- •Value over favorites - Sometimes underdogs offer better value
- •Learn from outcomes - Analyze why bets won or lost
Ready to Practice?
Now that you understand the basics, try placing some practice bets and see how you do!