That column counts the number of times the player:
sum(if[
holdem_hand_player_statistics.flg_blind_def_opp
faces a steal from a blind positionand not(holdem_hand_player_statistics.cnt_p_raise > 0)
doesn't raise preflopand lookup_actions_f.action = 'XC'
exactly check/calls the flopand lookup_actions_t.action = 'XF'
exactly check/folds the turn, 1, 0])
Depending on exactly what you want to show you will probably need another similar column to count the number of times the player had an opportunity to make those actions. Exactly how you define that will depend on how you define an opportunity? I guess that would be exactly the same but that they check and then face action on the turn?
In which case your opportunities column would be this:
sum(if[holdem_hand_player_statistics.flg_blind_def_opp and not(holdem_hand_player_statistics.cnt_p_raise > 0) and lookup_actions_f.action = 'XC' and lookup_actions_t.action
LIKE 'X_%', 1, 0])
See
this tutorial for a walkthrough of how to build a stat from a pair of columns like this.
You may find the rest of the
Tutorial - Custom Reports and Statistics useful too, especially
this section if you want to make other similar stats.