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can you actually prove a sportsbook calculated odds incorrectly

Came across a line today that seemed wildly off, to the point where I thought it might be a genuine mistake and not just market movement. Kinda got me thinking - if you actually spot a spot like this, is there any real way to prove the odds were set incorrectly and not just chalk it up to "juice" or late-breaking news? Sometimes I worry I’m seeing patterns that aren’t really there, but also don’t want to get burned if a book just refuses the bet later and calls it a palpable error.

Has anyone actually gone through the process of challenging a line on the grounds of miscalculation? Curious how you’d even start making that argument.

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23••3 replies

You can usually build a case by comparing the line with multiple reputable sportsbooks and checking the relevant market data at the time. But proving it was actually calculated incorrectly can be difficult, especially if there was breaking news or a genuine market move. I’d also check the sportsbook’s terms for how they define and handle obvious or palpable errors.

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649•

Screenshots are the whole game here lol, time stamp the line and 3 books beside it or they just mutter palpable error and move on. Was this a poker side market or a main line, and how far off was it, like +180 vs +110?

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529•

Roulette brain says typo, book says nopeee

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518•

Maybe, but books hide behind palpable error. I had a poker line voided once and yeah, still a little bitter about it

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351••2 replies

Yeah nah, if an online casino/sportsbook wants to call it a palpable error after the fact, you’re basically arguing with drywall lol. I had an esports total sit as accepted for 14 hours, then get voided with some canned T&C quote. That’s the whole game. If a line is like 25+ cents weird, I assume they’ll protect themselves, not me 😒

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385•

The thing people miss is “wrong” and “stale” are different beasts. In Live Dealer land the wheel can be right there on camera and the backend STILL decides what counted haha, same with lines, if your betting history shows you keep smacking stale feeds, they’ll call it error and keep walking

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908•

14 hours is CRAZY. Had a blackjack mispay sit pending half a day once, same canned garbage after that

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564•

I thought I saw one once in live betting. Turned out I misread the Poker prop!!!

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