These are my 2 cents, based on my knowledge of sports betting, statistics, money management theory and my experience as a user of Odds Wizard/Stake Wizard. How much you should be willing to risk on a bet, or a series of bets, is a function of the expected value AND the probability of winning. As an example, let’s say we have two bets:
Bet A: Fair odds 1.5 Line odds 1.8
Bet B: Fair odds 4 Line odds 4.8
Both bets have the same expected value of 20% (1.8/1.5 - 1 = 4.8/4 - 1). However, the probability of winning is very different. Bet A has a probability of winning of 1/1.5 = 66.67% while Bet B only has a probability of winning of 1/4 = 25%. Hence, the variability of your bank roll if you play a series of Bet B will be a significantly greater than for Bet A.
My question is how can I determine through SW which bets I am looking at have a probability of winning?