Easiest Way to Extract Data from Professional Games?

I know there are third-party website who publish different metrics from pro LoL games, but is there a way to extract a spreadsheet of this data directly from the results? It is just a pain to have to manually enter each piece of data and it would be incredibly helpful if there was a feature that would allow someone to extract players' and teams' data (KDA, gold/min., dmg/min., etc.) so some real analysis can be done.

Any ideas would be really appreciated.