Profitable football systems
Backtesting
The term “backtesting” refers to actually checking profitable football systems effectiveness, based on historical data to see how they would have worked over the prior time period.
Backtesting is a key component of strategy development. In theory, if a system worked well in the past, it will continue to do so in the future. On the other hand, any system performed poorly in the past, it is likely to do so in future.