Fundamentals
PFR (Preflop Raise)
PFR（翻前加注率）
PFR measures how aggressively a player plays preflop by tracking the percentage of hands they raise. The gap between VPIP and PFR shows how often a player calls preflop. A large gap indicates a passive player who calls too much.
Example
A player with 25% VPIP and 20% PFR has a 5% gap, showing some limp-calling tendencies.
Related Terms
More Fundamentals Terms
Range
The set of all possible hands a player could have in a given situation.
Stack Depth
The size of a player's chip stack relative to the blinds or pot.
Variance
The natural ups and downs in poker results due to the element of chance.
Bankroll Management
The practice of managing your poker funds to survive variance and avoid going broke.
Limping
Calling the big blind to see the flop instead of raising.
VPIP (Voluntarily Put Pot In)
The percentage of hands a player voluntarily puts money into the pot.