PFR (PFR)

Also known as: Preflop Raise %, Pre-Flop Raise

PFR is the % of hands a player raises preflop — the core measure of preflop aggression. Read it against VPIP: a tight gap means an aggressive reg, a wide gap means a limp/caller.

PFR (Preflop Raise %) is the share of hands a player raises preflop — opens, 3-bets, squeezes, anything where they put in a raise before the flop. It is the cleanest single number for preflop aggression and the natural partner to VPIP.

PFR is almost never read alone. The signal lives in the VPIP–PFR gap:

• Tight gap (e.g. 22/19, only ~3 points): a reg who enters pots raising — aggressive, balanced, tough. Their limps are rare and their range is built around fold equity.
• Wide gap (e.g. 28/8): a passive limp-and-call profile. They see flops cheaply and let you control the betting; punish by isolating limps, c-betting more, and value-betting thinner.

As a rule of thumb a healthy modern PFR tracks closely under VPIP. Compare it to RFI (open-raise frequency by position) and 3-bet % for a fuller aggression picture before you commit to a line.