Most poker advice tells you how to win. Pokeroi is interested in a quieter question: are you actually winning? The site exists to make poker results easier to read honestly, focusing on the few numbers that hold up over time, return on investment, variance, bankroll pressure and the sample size that gives any of them meaning, rather than the streak you happen to be on.

// the four ideas behind every tool
01

ROI

A return only means something next to the sample and the format behind it.

02

Variance

Swings are the cost of an edge, not a sign that something is broken.

03

Bankroll

Sizing decides whether a real edge survives an ordinary bad run.

04

Sample size

One session proves nothing. The long run is the only honest verdict.

Why this site exists

Poker results are noisy. A great week and a terrible week can both be luck, and most players read far too much into a single session. The usual answers do not help much either: spreadsheets are clumsy, and a lot of online advice is vague, hyped or quietly selling something. Pokeroi takes the opposite approach. The aim is clearer maths, not bigger promises, so you can see what your results are likely worth over the long run rather than what they felt like last night.

What the site offers

That principle turns into something concrete. Four interactive tools, the ROI calculator, variance calculator, bankroll calculator and win-rate converter, let you put your own figures in and see what they imply. Alongside them sit guides that explain what a good ROI actually looks like, how variance behaves over a sample, how to size a bankroll and how metrics such as bb/100 fit together.

What Pokeroi is not

  • Not a guarantee of profit.
  • Not gambling advice.
  • Not a prediction engine for any single hand or session.
  • Not a substitute for discipline or a genuine sample of results.

Who it is built for

  • Tournament players checking whether an ROI is real or just a small sample.
  • Cash-game players turning a win rate into clearer long-run expectations.
  • Players moving up stakes who need to resize a bankroll for tougher games.
  • Anyone tired of guessing whether they are actually winning.

Playing responsibly

Poker carries real financial risk. Pokeroi is for adults aged 18 and over, the tools are educational, and they are never a reason to stake money you cannot afford to lose. If the game stops being fun, free and confidential support is available at BeGambleAware.

The goal of Pokeroi is not to glamorise gambling, but to make poker results easier to read honestly.

// faq
Is Pokeroi free to use? +

Yes. Every calculator and guide on the site is free, with no account to create and nothing to install.

Does Pokeroi offer real-money poker? +

No. Pokeroi is an educational resource only. It explains the numbers behind the game and never hosts or promotes real-money play.

Do I need a large sample before the numbers mean anything? +

Usually, yes. Most poker metrics, ROI especially, stay noisy until you have a few thousand tournament entries or hundreds of thousands of cash hands. Below that, treat any figure as a rough indicator rather than a verdict, which is exactly why the tools here ask for your sample.