The issue with collecting tennis data and predicting matches is that with hundreds of players and thousands of matches the spreadsheet is a massive 12mb and the calculations must be switched to manual.
In addition tournaments come thick and fast during the summer across multiple time zones so keeping up to date is a considerable feat.
So an alternative is to focus on predicting the outright winner though the downside is that only a limited number of bookmakers and exchanges offer reasonable odds.
The 2019 Tennis Season is coming to a close.
Here are a few of the 2019 spreadsheets. We will be back in 2020.