How to correlate data in 2 csv files

Question

I am a swim coach. I want to correlate 2 CSV file data.

one file I have dryland data of swimmers[i.e. pull-ups, push ups]

In another file, I have the swimming timing of the swimmer. [i.e. 50mtrs, 100 mtrs]

How can I compare data? like how much a swimmer timed when he did pull-ups, and how much he timed when he did push-ups..

I hope u understood my question.