I realize this may not be the greatest example to work with, but could somebody explain how to calculate the ideal betting amounts for the arbitrage. Say I have $100 to bet, would I bet $64.30 on Castillo and $35.70 on Corrales to ensure a profit of approxiametly $1.03 either way? Or would I somehow adjust my amounts to account for the fact that Castillo is more likely to win?