Why These Three Stats Are Crucial

A [HUD] (Heads-Up Display) is a key tool for online poker players to analyze opponents. Among all statistics, VPIP, PFR, and 3Bet are the three most fundamental and practical metrics. They allow you to form an initial judgment of an opponent’s style after just a few hands, enabling you to tailor your preflop strategy accordingly.

VPIP: Voluntarily Put In Pot

Definition

VPIP measures how often a player voluntarily puts money into the pot. Preflop actions such as betting, raising, or calling count toward VPIP, but checking from the blinds does not. It is usually expressed as a percentage—for example, 22% means the player voluntarily enters the pot in about 22 out of 100 hands.

Typical Ranges

• TAG (Tight-Aggressive): 17%–24%
• LAG (Loose-Aggressive): 25%–35%
• Tight-Passive: 12%–16%
• Loose-Passive: 35%+

Interpretation & Application

• VPIP below 15%: The opponent is very tight, usually only playing strong hands. You can frequently raise to steal blinds because they are unlikely to fight back.
• VPIP 20%–25%: Standard range; the opponent has a reasonable range. Pay attention to whether their PFR aligns.
• VPIP above 30%: The opponent is loose and may enter with many weak hands. You should widen your raising range to exploit them, but be cautious postflop.

PFR: Pre-Flop Raise

Definition

PFR indicates how often a player raises preflop. Only raises (including 3-bets) count toward PFR; calls do not.

Typical Ranges

• TAG: 14%–18%
• LAG: 20%–28%
• Weak-Passive: 5%–10%

Interpretation & Application

• High PFR (e.g., 20%+) with high VPIP: LAG player; counter with more 3-bets.
• PFR significantly lower than VPIP (e.g., VPIP = 30%, PFR = 10%): Passive player who calls more than raises. You can squeeze them with a wider range because they rarely re-raise.
• PFR and VPIP close (e.g., both around 22%): Usually a TAG player whose raises deserve respect.

3Bet: Pre-Flop Re-Raise Rate

Definition

3Bet measures how often a player re-raises after someone else has raised. It is often expressed as a percentage or per-mille—for example, 4% means they 3-bet 4 times out of every 100 opportunities when facing a raise.

Typical Ranges

• TAG: 3%–5%
• LAG: 6%–10%
• Aggressive: 10%+

Interpretation & Application

• 3Bet < 3%: Very tight, usually only re-raising with KK, AA, or AK. You can steal blinds frequently, but should fold when they 3-bet you.
• 3Bet 5%–8%: Normal range, including JJ+, AQ+, and some bluffs.
• 3Bet > 10%: Aggressive player with a wide range of bluffs. You should widen your 4-bet range and watch for their continuation bets postflop.

Combining the Three Stats

Looking at any single stat in isolation can be misleading; combining them gives accurate conclusions.

Example Scenarios

• VPIP = 25%, PFR = 20%, 3Bet = 6%: Typical LAG player with a wide, aggressive range. Counter with strong hands—call less and 3-bet or 4-bet more.
• VPIP = 18%, PFR = 12%, 3Bet = 3%: Tight-passive player who enters many pots but raises rarely. Exploit by raising from position and applying constant pressure postflop.
• VPIP = 40%, PFR = 8%, 3Bet = 1%: Very loose-passive, almost never raises. Take advantage of their passivity by betting aggressively postflop.

The Trap of Small Samples

These stats become reliable only after 100+ hands. Against opponents with fewer than 50 hands, don’t over-rely on the data—observe their actual play instead.

Practical Tips

1. Quick classification: Use VPIP and PFR to place opponents into one of four quadrants: TAG, LAG, tight-passive, or loose-passive.
2. Adjust accordingly: Bluff more against tight-passive players; value-raise strong hands against LAGs.
3. Monitor 3Bet: When an opponent’s 3-bet frequency is abnormal, adjust your own opening range.
4. Review regularly: Use your HUD to review your own stats and check for leaks.

Mastering these three stats gives you the foundation of poker data analysis. Next, you can learn advanced stats like CBet, Fold to 3Bet, and WTSD.