A check-raise is when you check, let another player bet, then raise. It is a cunning play that is best used seldom. Note that due to the typically very low check-raise percentage (2% or lower) –
and for the sake of meaningful comparisons – Poker Copilot shows this value to two decimal places. The formula for calculating CR is:
Check-raise % = (times check-raised) * 100 / (number of check- raise opportunities)