« Reply #3 on: April 21, 2013, 10:33:55 PM »
ArbCruncher is the best I've used
Multiback part lets you back up to 10 selections
Back/Lay calc is excellent too and is more accurate than a lot I have seen
But I think this calculator only supports exclusive winner options (I mean, you win one option a lose all the others). This is easy (I have my Excel that does the same with 6 options, never needed more). But does it support the AH1(0.75)-AH2(1.0)-X-2 as asked?. In this case you receive money in more than one of your bets. If it does, its good.
The BMbets calculator seems to be much more complete, but is it reliable? There are a lot of options. But I don't think it support more that 3 way bets. Does it?