Poker HUD Stats: Profiler & Reliability Tool (2026)
Three tools in one: read an opponent from their VPIP, PFR and 3-bet, see a 95% confidence band on every number so you know when the sample is real, and look up what each HUD stat means.
Opponent's HUD line
A balanced, competent regular. Tight enough to respect, aggressive enough to be dangerous. The default profile of most winning players.
A small gap means they raise most hands they play. A wide gap means they limp and call a lot, which is the passive leak you attack.
Decent sample. Preflop stats are reliable; postflop and 3-bet are firming up but not final.
95% confidence on each stat
Over your 2,000-hand sample, the true long-run number most likely sits inside these bands. A wide band means do not act on that stat yet.
AF is a ratio, not a percentage, so it has no confidence band here. It needs a large postflop sample (several thousand hands) before it means much. Read it alongside WTSD: high AF with low WTSD is a bluffer, low AF with high WTSD is a calling station.
How to attack TAG (tight-aggressive)
Solid winning style: good hands, played hard.
Respect their raises but 3-bet them in position with a wider range to deny their positional edge.
Look for specific leaks rather than a global one. A high fold-to-cbet means you can bluff; a high WTSD means you value bet thinner.
You will not run them over. Win by picking your spots and avoiding big pots without a real edge.
How the HUD suite works
Enter the line
Type the opponent's VPIP, PFR and however many other stats you have, plus the hand sample they came from.
Read the confidence
Each number gets a 95% band from the effective sample, so you can separate a real tendency from small-sample noise.
Get the exploit
The profiler names the player type and lays out how to attack it preflop and postflop, with the right hedges.
A HUD number is a sample, not a fact
The single mistake that costs HUD users the most money is treating an early number as the truth. A stat is an estimate from a sample, and a small sample is mostly noise. Everything on this page is built around that idea.
Two stats carry most of the information
VPIP and PFR, and the gap between them, tell you the bulk of what you need: how loose they are and whether they are aggressive or passive about it. They also fire on every hand, so they become reliable fastest. Lead with them and treat the rest as confirmation.
The gap is where the money is
A small VPIP-PFR gap means they raise most hands they play, which is a sign of a competent aggressive player. A wide gap means limping and calling, the passive leak that pays your bills. A 35/8 player is a goldmine; a 24/21 player is not.
Why some stats lie for thousands of hands
A stat only updates when its trigger appears. VPIP updates every hand; 3-bet only when someone opens in front of them; W$SD only when a hand reaches showdown. So over the same 2,000 hands, VPIP can be sharp while 3-bet is still a coin toss. The confidence band makes that visible instead of hidden.
Exploits should be hedged, not absolute
Real opponents are not their archetype. A player can sit on the nit-TAG border, or be a station preflop and a nit postflop. Use the type as a hypothesis and let the specific stats, with their confidence bands, refine it. The reads here are written as tendencies to lean on, not laws to autopilot.
Where a HUD stops
A HUD shows tendencies, not the current hand. It will not tell you that this particular river bet is a bluff, only how often this player bluffs rivers in general. Combine it with the board, the line, and your own read. I use the HUD to set a prior, then trust my eyes for the deviation.
Poker HUD stats: what they mean and how to trust them
A heads-up display turns thousands of hands into a handful of numbers, but those numbers are only as good as the sample behind them. As of 2026 the difference between a winning HUD user and a losing one is rarely the stats they track. It is knowing which ones to trust yet, and what to do with them. This guide covers what each stat means, how to tell a real read from noise, and how to use the profiler and sample-size tools above.
What a HUD actually measures
A HUD counts events. Every time a player voluntarily puts money in preflop, that is a VPIP datapoint; every preflop raise is a PFR datapoint; every re-raise of an opener is a 3-bet datapoint. Divide by the chances that situation came up and you get a percentage. Stack a few of those percentages next to a player and you have a profile of how they tend to play, before you have seen a single one of their cards.
The catch is hidden in the word tend. A HUD stat is a sample estimate of a long-run frequency, not the frequency itself. Over enough hands the sample converges on the truth, but early on it can be wildly off. That is why the profiler above pairs every number with a 95% confidence band: it shows the range the real value most likely lives in, so a 30% VPIP over 40 hands reads as the rumour it is.
The read that paid for my HUD was not exotic. A 41/6 player with a 9% WTSD sat down, and I just isolated and value bet for an hour. No bluffs, no hero calls, no fancy lines. The numbers said calling station, the sample was big enough to believe it, and the rest was discipline.
Why sample size is the whole game
Most HUD mistakes are not about which stats to read. They are about acting on numbers that have not earned trust yet. Four ideas follow from taking sample size seriously.
Small samples are mostly noise
Over a hundred hands, a true 20% VPIP can easily show as anything from the low teens to the low thirties. Acting on the displayed number instead of the range is how solid regs get misread as nits and stations.
Different stats settle at different speeds
VPIP fires every hand, so it sharpens fast. 3-bet, fold-to-cbet and showdown stats only update in their specific spots, so they lag thousands of hands behind. The same sample can make one number trustworthy and another meaningless.
Trust the style before the precision
Even on a small sample, tight-versus-loose and aggressive-versus-passive usually come through. You can lean on the archetype long before you can lean on the exact percentage. Read the shape first, the decimals last.
More hands change the plan, not just the number
When a stat tightens from a wide band to a narrow one, it can flip your strategy. A fold-to-cbet you were not sure about becomes a green light to barrel once the sample backs it up. The confidence band is what tells you the moment has arrived.
How the confidence bands are computed
Each percentage is a binomial proportion, so the tool uses a Wilson score interval, which behaves correctly for small samples and for stats near 0% or 100% where the simpler normal approximation breaks down. The narrower the band, the more the sample has pinned the number down.
The key step is converting your hand count into the right number of opportunities for each stat. A thousand hands is a thousand VPIP opportunities but only a few hundred 3-bet opportunities and fewer still showdowns. The profiler applies a realistic opportunity rate per stat, which is why 3-bet and showdown bands stay wide long after VPIP has sharpened.
The sample-size calculator runs the same maths in reverse. You pick a stat and how tight you want the read, and it returns the hands you need to reach that precision. The opportunity rates are practical approximations rather than exact constants, but the ordering, VPIP fast and 3-bet or showdown slow, reflects how these numbers behave at the tables.
How to use the HUD tools on toolsgambling.com
On toolsgambling.com you can use the HUD profiler and sample-size calculator for free, just like all our other tools. Here is the routine I run on a new opponent.
- 01
Start with VPIP and PFR
Enter the two stats that matter most and the hand sample. The type and the gap give you a working read before anything else loads.
- 02
Check the confidence bands
Look at how wide each band is. Lean on the sharp ones and ignore the noisy ones until you have more hands on the player.
- 03
Add 3-bet, AF and WTSD
Fill in whatever else your HUD shows. These refine the read, but remember they settle slower, so weigh them by their band, not their headline number.
- 04
Follow the exploit plan
Read the preflop and postflop plan for the player type and apply it, keeping the hedges in mind. No opponent is a perfect archetype.
- 05
Share or embed the read
Copy the link to send a profile to a study group, or grab the embed code to put the profiler on your own blog or coaching site.
Three reads worth practising
Plug these into the profiler to see how the type and the confidence bands move.
The obvious station
A 42/7 line with a low WTSD over 3,000 hands. Wide VPIP, tiny PFR, huge gap, and enough hands to believe it. The plan writes itself: isolate in position, value bet every street, never bluff.
The trap of a tiny sample
A 33/27 line over 60 hands. It looks like a LAG, but the bands are enormous. That same player could be a 22/18 reg running hot. Note the type, but do not commit to the exploit until the sample grows.
The reg with a single leak
A clean 21/18 TAG, except their fold-to-cbet is 64% over a real sample. The global read is respect, but that one number says barrel their continuation defence relentlessly. Exploits often hide in a single stat, not the headline type.
Common HUD mistakes
The display is simple to read and easy to misuse. These are the errors that cost the most.
Acting on a tiny sample
The number one leak. Forty hands is not a read. Until the band tightens, default to solid balanced poker rather than an exploit built on noise.
Trusting every stat equally
VPIP over 500 hands is reliable; 3-bet over 500 hands is barely a guess. Weighting them the same gets you bluffed and stacked. Read each stat by its band.
Staring at the HUD instead of the table
The numbers describe tendencies, not this hand. If the board, the line and the timing all scream strength, do not bluff-catch just because their bluff stat is high.
Labelling instead of reading
Calling someone a TAG and switching off ignores the leak that actually matters. The type is a starting point; the exploit usually lives in one specific stat.
Ignoring the VPIP-PFR gap
Two players with the same VPIP can need opposite strategies. The gap, not the looseness alone, tells you whether to bet for value or bluff them off hands.
Forgetting that good players adjust
Strong regulars change gears and know you have a HUD too. The stats are a prior; against a thinking opponent, expect deviation and do not autopilot the exploit.
HUD stats glossary
The shorthand you will meet across these tools and at the tables.
Key terms
- Voluntarily Put $ In Pot. The share of hands a player chooses to enter preflop. The main looseness stat and the one that settles fastest.
- Pre-Flop Raise. How often a player raises preflop. Read it next to VPIP: the closer they are, the more aggressive the style.
- VPIP minus PFR. A small gap means an aggressive raiser; a wide gap means a passive limp-and-call player, the classic exploitable leak.
- Re-raising a preflop opener. A low number means premiums only; a high number means a wide, aggressive range you cannot fold to.
- Continuation bet. A bet on the flop by the preflop raiser. High frequencies leave a lot of air to attack.
- Went to Showdown. How often a player reaches showdown after seeing a flop. High WTSD with a low win rate is the calling-station signature.
- AF. The ratio of bets and raises to calls postflop. High is aggressive, low is passive, and it needs a big sample to be meaningful.
- The 95% Wilson interval around a stat. It shows the range the true value most likely sits in, given the sample. A wide band means do not act on that number yet.
VPIP
PFR
VPIP-PFR gap
3-bet
C-bet
WTSD
Aggression factor
Confidence band
A note on accuracy
The confidence bands are exact for the sample you enter, but the opportunity rates that convert hands into per-stat samples are practical approximations. Use the bands to judge trust, not as a lab measurement.
Free poker tools on toolsgambling.com
The HUD suite pairs naturally with the rest of our free poker maths tools. Use them together to study a hand and an opponent from every angle.
Play within your limits
A HUD is a tool for better decisions, not a promise of profit. Poker is high variance, so only play with money you can afford to lose, and take a break if the game stops being fun. For free, confidential support visit BeGambleAware.org.
Evgeniy Volkov
Fullstack developer with a background in mathematics. I build the calculators and game-style tools on ToolsGambling with Pixi.js and modern web tech, and every result uses transparent probability formulas you can verify yourself.
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