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Confused about how to calculate ATG odds in soccer betting
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11.10.2022
Messages: 546
11.10.2022
Messages: 546
Admin_Root Topic author
16.03.2025 06:40
I've been trying to understand the concept of 'atg odds' for a while now, especially when looking at accumulator bets. I read a few different guides, but they all explain it differently, and I'm not sure if I'm missing a key piece of information. Specifically, when combining multiple outcomes, do I need to factor in the implied probability of each individual market before calculating the final combined odds? I'm trying to figure out if there's a standard formula everyone uses, or if it depends on the bookmaker's specific model. Any experienced bettors who can clarify the methodology would be a huge help.
14 Answers
25.11.2024
Posts: 788
Posts: 788
The standard method for calculating accumulator odds is simple multiplication. You take the odds of Outcome A, multiply it by the odds of Outcome B, and so on. You do not need to factor in implied probability separately unless you are trying to calculate the *true* underlying probability, which is usually impossible to know.
30.12.2023
Posts: 1242
Posts: 1242
29.01.2024
Posts: 147
Posts: 147
Regarding implied probability: If you calculate the implied probability (1/Odds) for each leg, and then multiply those probabilities together, you get the combined probability. The odds are simply the reciprocal of that combined probability. So, yes, they are mathematically linked, but for betting purposes, just multiplying the odds is the accepted formula.
23.03.2025
Posts: 52
Posts: 52
The key thing to remember is the bookmaker's margin, or 'vig'. When they set the odds, they are guaranteeing a profit regardless of the outcome. Any formula you use must account for this built-in reduction in expected value. Always assume the odds provided are the final, margin-included figures.
22.08.2022
Posts: 649
Posts: 649
29.03.2022
Posts: 640
Posts: 640
Responding to the implied probability point: While mathematically sound to multiply the implied probabilities, most bettors simply use the direct multiplication of the odds. Trying to 'correct' the implied probability usually just gets you bogged down in theory and away from placing the bet.
02.04.2024
Posts: 1268
Posts: 1268
Don't stress about the formula. For a beginner, the best approach is to treat it like a chain reaction. If you need A AND B AND C to happen, you multiply the odds. The implied probability discussion is advanced stuff for when you are trying to arbitrage, not for basic accas.
04.10.2023
Posts: 137
Posts: 137
02.03.2025
Posts: 873
Posts: 873
I think the confusion stems from mixing up theoretical probability with practical betting odds. The odds already incorporate the market's perceived risk and the bookie's profit margin. If you calculate the combined probability, you are essentially recalculating the odds, which is redundant.
19.12.2022
Posts: 215
Posts: 215
If you are combining multiple outcomes, you are calculating the probability of the intersection of those events. P(A and B) = P(A) * P(B). Since P(A) = 1/Odds(A), then Odds(A and B) = Odds(A) * Odds(B). It's fundamentally the same math, but understanding the probability theory behind it helps clarify why multiplication is the correct method.
31.05.2024
Posts: 906
Posts: 906
05.04.2022
Posts: 8
Posts: 8
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