HUD Identification Checklist: Key Data Differences Between Regs and Fish

Introduction

In online Texas Hold'em, a HUD (Heads-Up Display) is a powerful tool to improve decision-making efficiency. However, just looking at numbers is not enough. You need to know which stats can quickly distinguish between regular players (Reg) and recreational players (Fish). This article focuses on 6-max No-Limit Hold'em, providing typical ranges for key indicators and explaining the strategic logic behind them.

Note: The following values are based on general observations at NL50-NL500. Deviations may occur across different platforms/stakes. Data from weak Regs (Tight-Passive) and aggressive Regs (LAG) may also fall within Fish ranges, and vice versa. Always combine with hand samples and dynamic adjustments.

Comparison Table (Text Description)

Detailed Breakdown by Stat

1. VPIP (Voluntarily Put $ In Pot)

• Reg: Usually 18-24%, due to strict position and hand selection.
• Fish: 30-50% or even higher, playing many marginal hands.
• Application: If VPIP >30, you can isolate them with a wider range and apply pressure postflop.

2. PFR (Preflop Raise)

• Reg: 14-20%, with a PFR/VPIP ratio close to 0.8-1.0, meaning they rarely limp and mostly raise.
• Fish: 8-15%, often limping or calling raises, PFR/VPIP below 0.5.
• Application: Against low-PFR Fish, you can raise wider preflop (especially from the blinds) since they rarely re-raise.

3. AF (Aggression Factor)

• Reg: 2.0-3.5, actively betting and raising.
• Fish: 1.0-1.8, more calling, less raising.
• Application: Against low-AF players, you can steal when they show weakness and be cautious against raises.

4. 3bet Preflop

• Reg: 6-10%, especially on the button and against UTG.
• Fish: 2-5%, almost only 3bet with strong hands.
• Application: Against low-3bet players, you can 4bet bluff more often since they rarely re-raise.

5. Fold to 3bet

• Reg: 55-70%, protecting their raising range.
• Fish: 45-60%, sometimes calling with small pocket pairs or suited connectors.
• Application: Against high fold-to-3bet Regs, increase 3bet bluffs; against low-fold Fish, use value 3bets and be ready for postflop.

6. Cbet Flop / Fold to Cbet

• Cbet Flop: Regs c-bet 60-75% of their range on the flop; Fish 40-55% (more likely to check-call).
• Fold to Cbet: Regs fold 45-55%; Fish fold 30-45% (call more).
• Application: Against high-cbet Regs, you can increase check-raise bluffs; against low-fold-to-cbet Fish, bet for value and bluff less.

7. WTSD & W$SD

• WTSD: Regs about 25-30%; Fish 32-40%+.
• W$SD: Regs about 50-55%; Fish 45-50%.
• Application: Players with high WTSD and low W$SD tend to call down with weak hands. You can value bet medium-strength hands on the river.

Respective Strengths

• Reg Strengths: Tight structure, hard to exploit, balanced preflop ranges, frequent postflop pressure. Good for learning GTO strategies.
• Fish Strengths: Wide preflop range, passive postflop, easily exploited by value bets. However, they sometimes call down unexpectedly, causing your bluffs to fail.

Recommended Scenarios

• Against Fish: Tighten value range, reduce bluffs, use more floating, and bet medium-strength hands on the river.
• Against Reg: Pay attention to range balance, use HUD stats to find leaks (e.g., high cbet -- raise, high 3bet -- 4bet, etc.).
• General Advice: Accumulate at least 100 hands of data for statistical relevance; prioritize VPIP, PFR, and AF.

Conclusion

HUD is a data tool, not a magic key. The line between Reg and Fish can sometimes be blurry, and players adjust. The typical ranges provided help you quickly categorize, but always combine with table dynamics, opponent history, and your intuition. Remember: Exploit Fish with value, counter Regs with balance.

(Example: A player with VPIP=40%, PFR=10%, AF=1.5, 3bet=3% can be initially classified as Fish. Suggestion: Isolate with a wider range and reduce postflop bluffs.)