VPIP
Voluntarily Put money In Pot — % of hands played voluntarily
Definition
VPIP (Voluntarily Put money In Pot) is a HUD statistic that indicates the percentage of hands where a player voluntarily puts money in before the flop — by calling or raising. Forced big blinds don't count. It's the most basic indicator of an opponent's playing style. A low VPIP (15–20%) indicates a tight player who only plays good hands. A high VPIP (35%+) is a loose player who plays too many hands. In 6-max Cash Game, a VPIP of 22–26% is typical of a solid TAG (Tight-Aggressive). On the BTN, a good player's VPIP can climb to 45%+ because position justifies playing many hands. VPIP alone isn't enough to qualify a player — you always have to analyze it together with PFR to understand whether the player is passive or aggressive.
A VPIP 15 player is very tight. VPIP 30 is loose. In 6-max, VPIP 22–26 with PFR 18–22 corresponds to a solid TAG profile. A VPIP 40 with PFR 8 is a passive player who calls too much.