Originally posted on 07/07/2012:

No problem. This might be obvious but you don't seem like the type who will give a duhh response so in case not, will explain a bit more.

Cents / moneyline odds format are like a low level encryption that catches novice bettors and just gets them thinking wrong. In other ares where decimal odds are used you think a little a different naturally along the way. But kind of off topic.

It's all implied probability (which is how often you need to win to break even). This is risk/return=implied probability. Where return is how much a win pays stake + win.

So -110 is risk $110 to win $100 (the return is $110 stake + $100 win = $210). Implied probability is: $110 risk / 210 return = 52.38%.

From here just use the odds converter. If you add say 3% (55.38% entered under implied probability) this moves it to -124.

Now take some huge favorites -450, this is $450 to win $100 so return is $550. 450/550=81.82% implied probability. Add 3% to this (84.83) and it's -559.

See the difference 14 cent move versus a 109 cent move. Therefore cents are meaningless as a way of thinking.

Side topic is how a bookmaker adds vig / juice / bookmaker advantage (whatever you want to call it). If he's building in a 5% advantage on -550. He doesn't just give side A 2.5% and Side B 2.5%. In order to maintain an equal vig he needs to give a team who is going to win 85% of the time, 85% of that and the team going to win 15% of the time, 15% of that. And that's equal (meaning same vig on both sides).

So back to OP. A ten cent move on one example, and a twenty cent move on the other you're being shorted about the same amount. A common mistake people make is saying there's more juice on big favorites or big underdogs. Yes in some cases (baseball due to novelty pricing) this can be the case.. but more of the time people are just saying that because they're confused how cents work, and the juice is pretty much, if not exactly, the same. If you're going to win 85% of the time adding some mark up is going to be a lot of cents. If your going to win 50% of the time it's not as much.

Also I had assumed the difference in pricing was due to higher juice, but also as another posted pointed out with the looking at the wrong side, this might be part of it too. maybe they have a little higher juice, and also slightly favor the other fighter as the two sites compared. Either way you obviously should make the bet at 5Dimes not Legends when those are the lines.