PokerTracker

Hello!

Basically I am trying to make a custom filter to figure out the win rate of players that have at some point open limped in the session (not just the specific hand). Any idea how to do so?

I don't have a filter for that but you can create an 'All Players' report, add the 'Preflop Open Limp' stat (download it from the Download Warehouse) and 'BB/100' statistics and filter for the timeframe you want although that will also filter the winrate to the timeframe so that's not going to work if you want to see session open limps with lifetime winrates.