Evaluating Sports Betting Systems with the Sharpe Ratio

During our selection process of the systems, we apply some filters such as average profit or average number of picks per season. In some leagues, we have multiple similar systems to choose from, and we must select only one to prevent duplicate picks.

For instance, in the Premier League, we have two similar-performing systems:

	System A	System B
Average Count	40.5	51.0
Average Profit	7.46	9.52
ROI	18.41%	18.67%
Min Return	1.63	-2.55
Max Return	18.10	22.71

While System B offers potentially higher profits, it also carries greater risk due to a wider return range. To balance return and risk, we employ the Sharpe Ratio, a financial metric measuring risk-adjusted return.

System A has a Sharpe Ratio of 1.33, while System B's is 1.19. A higher Sharpe Ratio indicates better return for the same level of risk. Therefore, we select System A.