01 / BAD BEAT
They call outside their range.
Then hit the river.
Cash Games · 6-max · 100 BB
Every hand starts with a decision.Make yours part of a plan.
Train your preflop ranges, spot where you deviate and strengthen the decisions you find toughest. Build a GTO foundation to return to when doubts creep in or a session gets difficult.
Free · No card · In your browser
0+
hands trained
0
GTO drills + random mode
0
combos per range chart
100%
free
Variance, decisions and discipline
Played it right… and still lost?
02 / VARIANCE
You lose with AA.
And start questioning everything.
03 / TILT
After three tough losses…
You open a hand you would normally fold.
THE RESULT
Variance is part of the game. Changing your strategy out of frustration does not have to be.
Even with AA, you can play correctly and lose. One hand does not prove your decision was wrong, just as winning does not turn a mistake into a good play.
YOUR DECISION
You cannot control the river. You can train your next decision.
Practising GTO ranges helps you reduce preflop mistakes and gives you a reference when doubt creeps in. A well-practised plan can help you stay disciplined after a bad beat, but it does not eliminate variance or guarantee you will avoid tilt.
When the next bad beat comes, have a plan.
Train your ranges. Return to your strategy.
Everything you need
A complete preflop lab
Drills, ranges, stats and a coach that spots your leaks. In a single app, free.
8 drills + random mode
OR, 3-Bet, Squeeze, Cold 4-Bet and defenses. Every spot real, isolated and repeatable until you master it.
Stats and streak
Overall accuracy, streak, XP and breakdown by drill and position. Your real progress, not a feeling.
GTO range charts
13×13 grid per position colored RAISE / LIMP / FOLD. The exact range, instantly.
Gamification
Level, XP, daily streak, achievements and leaderboard. Preflop training goes from chore to habit.
Spaced repetition
Feeds your mistakes back at the optimal moment. You don't redo what you already know. See how →
AI coach
Analyzes your history and spots real leaks: where you over-defend or fold hands that are +EV.
Cross-platform (PWA)
Install it on mobile straight from the browser and use it like a native app. No app stores.
Free, no friction
One click and you're in. No forms, no card, no downloads.
The science of learning
The system remembers what you forget
Solving 50 random hands isn't training: you already knew most of them, and the two or three you missed you'll miss again next week. GTO Poker Lab doesn't work like that.
1
You miss a hand. The system flags that exact drill + position + hand combination that's costing you EV.
2
Prioritized review. It comes back more often — in mixed mode, ~30% of the questions are your own mistakes.
3
Mastered after 3 correct answers. Once you get it right three times in a row, it leaves the queue. Now it's long-term memory.
- It's not cramming: you drill exactly your weakest spots.
- Automatic prioritization based on your errors, not generic exercises.
✕
Miss
↻
Review
✓
Mastered
How it works
From zero to automatic in 3 steps
1
Sign in in one click
No forms, no friction. Sign in and you're in.
2
Decide at the table
We sit you at a 6-max with a real hand. You choose Fold, Call, Raise or 3-Bet — and the size in BB.
3
Feedback + review
You instantly see the correct GTO play. Your mistakes go back into the queue until you master them.
Range charts
The exact range, one tap away
Cash Games 6-max ranges for a 100 BB effective stack. A full 13×13 grid per position for every drill —Open Raise, 3Bet/Call, Squeeze, Cold 4Bet, Limp— each with its own action legend. Check the correct range before, during or after training.
Open Raise
3Bet / Call
Squeeze
Cold 4Bet
Limp / Raise
Open Raise
AI coach
Spot the leak you didn't even know you had
Analyzes your hand history and tells you what to fix, not just what you missed: positions where you over-defend, spots where you fold +EV hands, sizings off GTO.
Analyze my gameWhere am I losing EV preflop?
Leak detected: you defend too wide in BB vs squeeze. Fold combos like Q9o and J8s here.
Your HJ open is solid (99% GTO). Keep it up.
Suggested adjustment: lower your 3-bet/call vs CO by 6%. I've added it to your review queue.
What they say
Less intuition, more winrate
Sample testimonials
"I spent two years playing preflop on intuition. In three weeks I stopped defending my blinds with trash against 3-bets. You can see it in my winrate."
Nemesis_NL50Online NL50 reg · 🔥 21-day streak
"What sold me is that I don't redo what I already know. The system keeps throwing me the hands I miss, and now I don't miss them."
gto_grind88Cash grinder · NL100
"The AI coach pointed out a leak in my defense vs squeeze that I didn't even know I had. I adjusted the range and stopped bleeding BBs there."
Zorro_del_riverCash reg · NL25
Questions
Frequently asked questions
Is it really free? +
Yes. Training, checking the range charts, viewing stats and using spaced repetition is free. All you need is to sign in with Google.
Do I need prior experience? +
None in particular. If you know the basic rules of Hold'em, start with Open Raise and the range charts. If you already play regularly, jump straight into random mode or the defense drills against 3-bet and squeeze.
How does spaced repetition work? +
Every hand you miss gets flagged and comes back with priority, mixed into your normal training, until you get it right three times in a row. At that point it's considered mastered and stops repeating: you train long-term memory, you don't cram overnight.
What is GTO and why train it? +
GTO (Game Theory Optimal) is the mathematically balanced game that no opponent can exploit. Training it preflop gives you a solid baseline to later deviate from with judgment against exploitable opponents — but first you need to know what that baseline is.
Can I install it on mobile? +
Yes. It's a PWA: from your mobile browser you can add it to your home screen and use it like a native app, without going through any app store.
Is my data safe? +
Yes. We sign you in via Google OAuth: we only receive your email and profile name to identify your account. We never see your password.
Your next preflop mistake is going to cost you BBs.
Either you train it now, or you pay for it at the table. Start free and let spaced repetition turn your leaks into instincts.
Train for free No card · No install · No excuses