Forecast Sports Calculator
Work out a racing forecast (exacta) payout from two odds.
How to Use This Calculator
- Pick the forecast type — straight (one set 1-2 order) or reverse (either order)
- Enter the odds of the horse you’ve tipped for 1st
- Enter the odds of the horse you’ve tipped for 2nd
- Add your unit stake
- See total stake, combined odds, return and profit
Formula
Combined Odds = Odds₁ × Odds₂
Straight Forecast: 1 bet, total stake = unit stake.
Reverse Forecast: 2 bets (both orders), total stake = 2 × unit stake. Only the correct order wins; payout = unit stake × combined odds.
Frequently Asked Questions
What's a forecast bet?
A forecast (known as an exacta in the US) is a bet on which two horses finish 1st and 2nd in a race. A straight forecast needs the exact order; a reverse forecast covers both orders for double the stake.
How does a forecast differ from each-way?
Each-way is two separate bets (one to win, one to place) on a single horse. A forecast is one bet that pins down how two horses’ finishing spots line up. Forecasts pay a lot more but are tougher to land.
Straight or reverse forecast — which should I pick?
Go straight if you’re confident about which horse wins. Go reverse if you reckon two horses will take 1st and 2nd but you’re not sure of the order — you pay double the stake but cover both ways.
Are forecast odds just the book odds multiplied together?
Most UK bookmakers go by the Computer Straight Forecast (CSF) dividends declared by Tote/SP, not straight multiplied odds. Multiplied odds give you a handy estimate, but real payouts can swing by ±10-20% depending on the field strength formula in play.