Markets coveredMatch OddsCorrect ScoreOver / UnderFirst HalfSecond Half
Statometrics
Calculator · from Lesson 4.6

How do I price forecasts and places?

What it’s telling you, step by step: Lesson 4.6: Racing: from win odds to forecasts

Try it · Harville calculator
Runners and win prices
Win book adds to 101.13%; margin removed.
RunnerPriceImpliedFair winTop 2Fair
A3.132.3%31.90%58.09%1.721
B4.223.8%23.54%46.65%2.143
C5.518.2%17.98%37.22%2.687
D8.411.9%11.77%25.38%3.940
E119.1%8.99%19.69%5.078
F175.9%5.82%12.96%7.717
Place chances add to 200.00% (should be 2 × 100%).
Forecasts
Forecast A→B
11.03%
Fair
9.07
Reverse A/B
20.85%
Fair
4.80
Tricast A→B→C
4.450%
Fair
22.47
Second place, given the winner
Rows are the winner, columns the runner-up.
WonABCDEF
A·34.626.417.313.28.5
B41.7·23.515.411.87.6
C38.928.7·14.411.07.1
D36.226.720.4·10.26.6
E35.025.919.812.9·6.4
F33.925.019.112.59.5·
The favourite A wins 31.9% of the time once the margin is out, and finishes in the first 2 58.1% of the time: a fair place price of 1.72 on plain Harville.
Check a Betfair price: A to place (top 2)
Model chance 58.09%, fair price 1.721.
Type a price to see if it’s value. Break-even after commission is 1.736.
Plain Harville is known to over-rate favourites for places. Try a discount of 0.8.
Harville assumes that once the winner is gone, the rest share the remaining chance in proportion to their win chances. The discount power below 1 flattens that for 2nd and 3rd, pulling favourites back.
18+ only. Educational content, not financial or betting advice. Past results do not guarantee future returns. If gambling stops being fun, get free, confidential help at BeGambleAware.org.
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