Bookmaker a participant a – 1. 36 (73. Five%) player b – three. 17 (31. 5%) in case you add 73. 5% to 31. 5% that totals up to a one hundred and five% chance on this healthy. What is that greater 5 percentage approximately, as it have to be a 100%? This is the bookmaker’s margins that they work into their odds and why arbitrage can’t work at simply the only bookmaker. Bookmakers commonly run at across the 5% profit margin on bets. You have to find odds that general much less than one hundred% an example of a running arbitrage situation might be (odds taken from special bookmakers): player a – 1. 6 (62. 5%) participant b – three. 0 (33. Three%) add those percentage numbers together and you've 95. 8% and that means that there may be an arbitrage opportunity open to you.