Different odds for a same bet

[Triffin]

I guess each website is basing their result within its researcher's research and sometimes the survey they get from different sports junkies and analysis will surely differ, well even though you are basing two or multiple websites doesn't mean they will have exact results as the others would be, In my opinion,

you would sure include your own research when getting your full results on the matter, I guess it is OK to have such a result for some variety purpose but if you would have any difficulties making a decision I think you can base on your own assumption regarding this matter.

That is correct. All platforms or in this case websites come up with their own research and results. They all have different ways to collect data and then process it to get some meaningful result. Due to this, it is not astonishing to see a difference among their final predictions. So the best way to mark right answer is by doing some work on your own and then comparing it with others and choose the one with highest votes.

[nakamura12]

That is correct. All platforms or in this case websites come up with their own research and results. They all have different ways to collect data and then process it to get some meaningful result. Due to this, it is not astonishing to see a difference among their final predictions. So the best way to mark right answer is by doing some work on your own and then comparing it with others and choose the one with highest votes.

Doing your own research might be the same as the site's result that they get from their research. I agree to previous reply about having an error or the update of the odds might be delayed for some reason. It is possible that what they did to get their results is by comparing their results to others then choose the closest one.

[ralle14]

Those are only on the pre live odds though, once it's live all odds will be the same at least in the sportsbook i've used. Imo the reason why other pre live odds are higher on some markets because the limits are much smaller or they've set a lower profit margin for those markets to be competitive against other sportsbook.

[DarkStar_]

Those are only on the pre live odds though, once it's live all odds will be the same at least in the sportsbook i've used. Imo the reason why other pre live odds are higher on some markets because the limits are much smaller or they've set a lower profit margin for those markets to be competitive against other sportsbook.

That's not necessarily true. It might just happen to occur that way because live odds are generally all pretty bad, but even then, the margin still varies:

[Trofo]

The main reason is because different outcomes will often have different margins. The most popular ones (ML, Spread, O/U) usually have low margins as they are generally more accurate and have more volume, while more "exotic" bets have higher margins. The backend raw probability should be very similar if not identical between each option.

I actually believe that there is more to this. I just started tracking these differences so I could be wrong but two games I checked out had bigger differences in odds as the kick off was coming nearer.

My working theory is that odds start with small difference due to different margins. Than users start betting on more popular markets causing them to drop more on favourite side. It seems that odds adjusting algorithm doesen't track wages across all same markets. Instead it works only on individual odds.

Now as I write this I realised that if my theory is correct the odds for favourite and underdog should be moving in different directions.

*In my post when you see word favourite it actually means market outcome that is getting more money, not the team which is more probable to win. Vice versa for underdog. Maybe there are better terms to use but it is still very early in my part of the world and my brain still needs some time and coffeine to hit working temperature.