Does anyone understand the logic behind "Over (2)" bets in football? If this means more than 2 goals, then what's the difference between "over 2" and "over 2.5"? And if it means 2 or more goals, then how's that different from "over 1.5"? The odds are different for each.
Is this some sort of bug, or am I missing something?
It is not a bug and there is nothing strange about that.
You can find the same goal markets in Sportsbet and other gambling website in Asian total goal lines.
Odds are lower for Over 2 than for over 2.5, and with over 2 goals you win a bet if there is 3 or more goals, with 2 goals your stake is returned back to you.