Odds formats explained
American odds use +/− notation (e.g., +150 means $150 profit on a $100 bet). Decimal odds show total return per $1 (e.g., 2.50 returns $2.50). Market price is the contract cost in cents on prediction markets. Implied probability is the percentage chance implied by the odds.
Conversion examples
+200 American = 3.00 decimal = 33.3% implied probability = 33¢ market price. −150 American = 1.67 decimal = 60% implied probability = 60¢ market price.
Why convert?
Different platforms display odds in different formats. Converting to a common format (usually implied probability) makes it easy to compare prices across prediction markets and sportsbooks.
