The bookies are so designed that any option you chose will have a corresponding odd which increases as the risk increases and vice versa.
The payout in sports betting does not depend on the actual probability of a given team winning/losing/drawing, but on how other players bet. Therefore, it is possible that the draw is underestimated and therefore gives disproportionate returns in relation to the risk, because, as I note in this thread, most people only bet on winning/losing because you can win more. What I mean is that adding to the DRAW bet may actually reduce your payout by, for example, 20%, but it increases the probability of winning by 50%.