CORTENDouble chance combines two of the three match results (1, X, 2) in one selection: 1X, 12 and X2. Its probability is the sum of the two margin-free 1X2 probabilities it covers, e.g. P(1X) = P(1) + P(X). This is a price conversion, not a prediction.
Double Chance covers two of the three full-time results (1, X, 2) in a single selection. If either of them happens, the selection wins.
Three selections
1X: home win or draw. 12: the match does not end in a draw. X2: away win or draw. Each selection covers two results, so the three probabilities add up to 200%.
Calculating from 1X2 prices
For synthetic 1X2 prices of 2.10 / 3.40 / 3.60, the margin-free (basic normalisation) probabilities are 1: 45.43% · X: 28.06% · 2: 26.50%; we walk through the calculation in the margin article. A Double Chance probability is the sum of its two results, and its fair odds are 1 / probability:
| Selection | Calculation | Probability | Fair odds |
|---|---|---|---|
| 1X | 45.43% + 28.06% | 73.50% | 1.36 |
| 12 | 45.43% + 26.50% | 71.94% | 1.39 |
| X2 | 28.06% + 26.50% | 54.57% | 1.83 |
Comparing with the actual price
Comparing the probability implied by a Double Chance price (1/odds) with the margin-free value above shows how much has been added to that price. For example, a price of 1.30 for 1X implies 76.92%; the gap to the margin-free 73.50% is the margin. If the Double Chance prices and the 1X2 prices were recorded at different times, the comparison will mislead.
What to watch for
A high-probability selection does not mean “low risk”: a 73.50% probability means it fails roughly one match in four. If a team’s Double Chance selection has often won in the past, read that together with the number of matches behind it; see the sample size guide.
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Published 28 October 2026 · Last updated: 28 October 2026 · Responsible: Cortenscore editorial team · Spotted an error? Report a correction. This page is for statistics education; it is not a prediction or betting advice. Example odds are synthetic.