The Track Bookmakers · Ireland
Horse racing odds
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Convert fractional and decimal odds, calculate implied probability and understand the difference between return and profit.
Convert the price
To convert fractional odds a/b to decimal, calculate (a ÷ b) + 1. For example, 5/2 becomes 3.50 decimal. To convert decimal odds to implied probability, calculate 1 ÷ decimal odds: 3.50 implies about 28.57% before accounting for margin.
Return versus profit
At decimal odds of 3.50, a €10 stake returns €35 if successful, including the original €10 stake; the profit is €25. At fractional 5/2, the profit is €25 on €10, with stake returned separately. The examples describe arithmetic, not a forecast of chance.
Use the calculator
Enter fractional numerator, denominator and stake to see decimal odds, implied probability and potential return. Prices can move and an implied probability is not a certainty. For each-way calculations, open each-way betting.
Irish odds tool
Convert racing odds
Convert a fractional price to decimal odds, implied probability and potential return.
Decimal odds: 3.50 · Implied probability: 28.57% · Potential return: €35.00 (including stake).
Formula: decimal odds = (numerator ÷ denominator) + 1; return = stake × decimal odds.
Explore WinsharkCommon questions
Where can I check the current horse racing odds information?
Use the official event, course or market source linked on this page, and check the current terms shown for the specific race.
Can past form or odds guarantee a result?
No. Form and odds describe information available at a point in time; they do not guarantee a future result.