So if I have percentages that three things are going to happen and I need to convert it into two lines, I was wondering what to do. For example, if I have for a match between Arsenal and Chelsea that Arsenal will win 23% of the time, Chelsea will win 31% of the time, and the match will result in a draw 46% of the time, how would I calculate a direct two-way line between Arsenal and Chelsea where a draw just results in a canceled bet?
Apologies if this has been asked before, but there didn't seem to be a calculator on the subforum home page, and I tried doing a search for this sort of thing to no avail.
Thinking about it a little bit I assume it's as simple as dividing each individual win percentage by the total of the two. So in this example 23/(23+31) and 31/(23+31) but if someone could confirm this I'd appreciate it.