RangeConverter GTO Poker Trainer was created to help you easily level up your poker skills and become a well-rounded, solid player at any game type. The Trainer is an online GTO trainer: it deals you a spot and grades your decision against the solver. The latest version rebuilds the whole training loop around progress you can see: structured courses, Reports on your own game, and a queue that learns your mistakes and re-deals the trouble spots until you play them right.
This guide walks through every part of the trainer and applies to every sim in your lobby: Hold'em cash, MTT, Spins, Short Deck and PLO (PLO, PLO5 and PLO6 are preflop only).
Starting a session
Open My Lobby, pick a sim and press Play now: the Trainer opens ready to deal. Drill N due blunders, on the same panel, opens it straight onto your Mistakes queue for that sim. You can also jump in from the Range Viewer, where Drill this spot opens the Trainer on the spot you are studying.
No account yet? Get free preflop sims across all five game types. Confirm your email to start training.
Create a free account
The Trainer opens on a welcome screen. The Start or Resume button starts a pathway or picks up the one you were on, and Pick my own lets you choose. Recommended for you offers up to three cards built from your own record: a leak to fix, a step of progress and something to explore. Session setup sets Difficulty, Study mode and Animations before the first hand.
The first time you play, a short guided tour opens by itself. It comes in nine parts, from the table to Reports and importing your hands, and you can replay any part from Tour in the menu.
The header row
Left to right across the top of the Trainer: the two side-panel tabs (Hand History and Progress) and the Reports button, a list icon that hides or shows that whole panel, the name of the sim you are playing, and the 1 / 2 / 4 buttons that set how many tables you play at once.
The right side keeps score for the session: points, current streak, best streak and accuracy, which turns green when you are running hot. Milestones get called out as you pass them, a little "Streak 10" or "New best" floating off the counter. Summary opens the full session breakdown, covered further down. The menu button on the far right holds the options menu.
Reading the table
The table itself reads like any online client: stacks and positions on the plates, the dealer button, bet chips with amounts, the board and pot in the middle, your cards at the bottom. A gold highlight marks whose turn it is, and the small rotate icon by your seat means the Trainer is dealing you a fresh position each hand (more on pinning a seat later).
Two lines above the table carry the context. The coach line names what you are training and, when the queue has picked the spot for a reason, says so: "Weak area", "Reviewing a past mistake", "Fixing a blunder". Once you hold a crown on a pathway, a crown pill on the same line shows how far you are from the next one, such as "Crown 3 · 14 to Crown 4". Below it, the action path spells out how the hand got here, every fold, call and raise, street by street, with the board cards inline and a chip marking who is to act.
The action buttons
The decision buttons' colours carry information: checks and calls are green, bets climb from orange through red to near-black as the sizing grows, and fold is blue. That is the Classic palette; Action colours in the options menu switches to Colour-blind or Reports colours. Sizes show in big blinds, or as a percentage of pot with Sizes as % of pot, a setting the Trainer shares with the Range Viewer.
The keyboard is quicker than the mouse once you are in a rhythm:
- F folds, C checks or calls, A shoves all-in
- Space or N deals the next hand
- 1, 2, 4 switch the table count
The table controls
Each table carries its own control strip, top right of the felt:
- Sit out (the pause icon) holds the dealer on that table on a first click, and sits you back in on a second click.
- Timer (the clock) puts you on a 30-second shot clock per decision, with a countdown ring that drains from blue through amber to red. Run it out and the hand moves on, with timed-out hands tracked in your session summary. It is off by default; the slash through the clock means disabled.
- New Hand skips the current spot. No grade, no penalty, just a fresh deal.
- Create drill (the crosshair) builds a repeating drill from any spot in the tree, covered below.
- Table settings (the gear) opens the per-table setup: course, pathway, seat and hand filter.
With the timer on, the countdown ring sits beside your buttons and drains as the clock runs down, blue while you have time, red when you do not.
Feedback on every decision
The Last Action panel under the buttons grades each decision the moment you make it. Four verdicts cover everything:
- Correct. You picked the right line for the difficulty you play on.
- Small Mix and Large Mix. A real line, but not the one you should lean on. The panel shows how far off frequency you were.
- Blunder. A line the solver plays less than 2% of the time.
Next to the verdict, the Solver Mix bars show the full strategy for your exact hand and for the whole range, so you can see at a glance whether your pick was a reasonable mix or a pure action you missed. The EV by Action table ranks every available line and prices the gap: in the shot above, folding AT offsuit in the CO gave up a raise worth +0.14bb, and the panel says so in plain terms. You chose Fold, the solver plays it 0% here.
If your hand cannot reach the spot, because the solver never plays it that way, the hand ends there with no grade. The card reads "Hand ends here", and your streak survives.
The Last Action panel can be collapsed to a single verdict line if you would rather keep the felt clean.
Easy, Normal and RNG: pick how you are graded
The Trainer has three grading modes. Set one on the welcome screen, or switch mid-session from the Difficulty selector in the options menu:
Easy counts any action the solver plays at 2% or more as correct. Anything below 2% is a blunder, in every mode. Right when you are new to a format and want to learn the shape of ranges without sweating frequencies.
Normal grades you against the solver's most-played action. A different but valid line counts as a mixing error rather than a blunder, and a line within 5 points of the top one still counts as correct, so a true coin flip never reads as a leak. This is where most players should live.
RNG deals a number from 1 to 100 alongside each spot, and your job is to pick the action whose frequency band the number lands in. It trains your actual mixing frequencies rather than your first instinct.
Easy scores ×1, Normal ×2 and RNG ×3. Difficulty changes your session score only: badge accuracy and mastery work the same in every mode, so grinding Easy cannot inflate a badge.
One detail worth knowing: mixing errors share EV with the main line, so they never cost bb in your stats. Only blunders show an EV loss.
The little i button next to Difficulty opens this exact explanation in the menu whenever you need it.
Study Mode: the solver's answer after every mistake
Study Mode turns the Trainer from a drill into a study tool. Switch it on in the options menu, or on the welcome screen's Session setup card, and two things change:
- After a mistake, the full strategy review opens by itself, and the felt waits behind it while you read.
- When you face a bet, a pot odds readout beside the buttons shows the price of the call and the equity you need to break even, such as "1.6:1 · 38%".
The review shows the solver's strategy for the spot with your hand ringed in gold, the EV of each action, and the answer in one line: what you chose, how often the solver plays it and the best action. Load spot in viewer opens that exact spot in the Range Viewer, in a new tab. You can open the same review in any mode by clicking the mini grid in the Last Action panel.
PLO hands have no 13x13 grid, so in PLO a mistake does not pause the table.
Click a hand to see its combos
From the flop on, the strategy review breaks any hand into its individual combos. Above the grid it says "Click a hand for its combos". Click a square and the opponent's range on the right is replaced by a panel for that hand. Back to [opponent] range brings the range back.
The top of the panel gives the hand, how much of it is in your range at this point ("In range"), and its overall mix. Below that, each combo still possible on this board gets its own card with:
- the two cards
- what the combo makes on this board, such as "Ace High + Nut Flush Draw"
- its equity
- how often the solver takes each action with it, and the EV of each action
The combo you were dealt is tagged Your hand. This matters because one square on the grid can hide combos that play very differently.
Preflop, the review shows each hand as a whole and doesn't split it into combos.
The options menu, top to bottom
The rest of the menu:
- View Sim opens the full solution in the Range Viewer in a new tab, for when a spot deserves a deep dive. The Online Range Viewer tutorial covers that side.
- Sound toggles the chips, cards and milestone audio.
- Animation speed runs from Off (instant results, no motion) through Slow and Normal to Fast.
- Spot intro shows each new spot type's badge on the felt as it comes up. Switch it off and hands run straight into each other.
- Study Mode turns the Trainer into a study tool, covered in the section above.
- 4 colour deck colour-codes the suits so flushes never sneak up on you.
- Action colours, Square size by weight, Normalise squares and Sizes as % of pot are display settings shared with the Range Viewer, so a change here applies there too. On a screen bigger than 1920 x 1080, Display size sets how large both are drawn.
- Tour lists the nine parts of the guided tour, marked New or Seen, so you can replay any of them.
- End Session opens My Session, the summary covered below. Ending takes a second press, so a stray click cannot wipe a good run.
- Back to Lobby returns you to the sim list.
Courses and Key Skills
The Progress tab on the left is the spine of the new Trainer.
At the top sit the Courses. General is the one to click if you only ever click one thing: an endless queue across the whole sim that leans toward your weak areas and quietly weaves your past mistakes back in. The coach line tells you when it has done exactly that. Preflop and Postflop work through those halves of the game, so the Trainer doubles as a dedicated preflop trainer or postflop trainer when you want one, and Mistakes gets its own section below.
Under the courses, the sim's Key Skills are laid out as individual badges: First In, vs RFI IP, Blind Defence, Blind vs Blind, vs 3bet, vs 4bet, vs Limp, then the postflop set (SRP: IP vs BB, SRP: RFI OOP, 3BP: IP and friends, depending on the sim). Click any badge and the dealer pulls spots from that skill alone.
Two things to read on every badge:
- Ring fill is milestone progress, through five levels, and the Trainer celebrates on the spot when you cross one.
- Ring colour is accuracy: red, orange, yellow, green as your average score on that skill climbs.
From the first milestone a crown sits on the badge, and its metal shows the hardest mode you reached it in: Steel while in progress, Silver on Easy, Gold on Normal and Amethyst on RNG. After your first crown, the Trainer offers to "Go for gold" and reopens the same pathway on a harder mode.
When you play more than one table, a table picker appears at the top of this panel so each table can train its own thing.
The Mistakes queue
Every blunder or mixing error you make goes into an inbox, and the Mistakes course deals them back to you on a spaced-repetition schedule, measured in days. Get it wrong and it comes back tomorrow. Fix it once and it returns in three days to check the fix held. Get it right twice in a row and the leak is marked mastered. Up to 20 returning mistakes come back each day; new ones are never held back.
The badge wears the count of mistakes due now, split into new and re-checks, and a green tick when you are caught up. While you replay them, the coach line keeps you oriented with lines like "Mistakes: vs RFI IP · Fixing a blunder". Clear the queue and the Trainer says so and hands the dealer back to General until there is new material to work on. You can also go straight to the queue from My Lobby, with Drill N due blunders on the sim's panel.
Hand history that shows where the chips went
Every hand of the session stacks up in the Hand History tab. Each row carries the verdict icon, your hole cards, and the worst EV loss in the hand when there was one, so the expensive hands are visible from across the room.
Expand a hand and you get the street-by-street story: board and pot size per street, opponents' actions dimmed, your own decisions colour-coded by result with a small frequency bar showing the solver's mix at each node, and a Drill button on each of your decisions to deal that spot again. Hands replayed from the Mistakes queue carry their leak-fixing progress here too: pips that fill as your streak on the spot grows, then "Leak fixed" when it sticks.
Click any of your decisions and the full strategy grid for that exact node opens: every hand in the range, every action, every frequency, with your holding highlighted and the verdict restated above the grid. It is the same picture you would build in the Viewer, one click from the hand that made you want to look. Load spot in viewer opens that exact spot in the Range Viewer, in a new tab.
When you pull hands in from Reports, for example with Review worst hands, the tab lists them with Replay all N · worst first, which replays them one after another, starting with the most expensive.
Reports: your long-run numbers against GTO
The Reports button swaps the tables for your long-run record on the sim: your own game, graded stat by stat against the solver. Two tabs sit at the top: Me for your play and GTO for the solver's own numbers. Source picks what counts (Trainer + Imports, Trainer or Imports), and the date range runs All time, 90d, 30d or 7d, with Compare to set it against the previous period.
Across the top: hands, VPIP, PFR, your Preflop GTO score and Mixing, with Blunder rate and EV lost below. The Overview leads with Review worst hands and Your biggest leaks · bb lost, ranked by what each leak is costing you.
The centrepiece is the Preflop grid: stats down the rows, positions across the top, your number beside the solver's, the way a tracker lays it out. Click any stat and a card opens with your frequency, GTO with your hands (what the solver does with the exact cards you were dealt, so a lucky run of strong hands cannot make your numbers look better than your play) and GTO with all hands. Three buttons let you act on it: Train this spot deals fresh hands there, Study in Viewer opens it in the Range Viewer, and Replay my mistakes re-deals the hands you misplayed, worst first, with your own hole cards.
Further down, Postflop spots covers your postflop play in the Trainer, where the sim has postflop. Hand classes colours every starting hand by GTO %, Mistake % or EV lost, so you can see at a glance whether it is the suited connectors or the offsuit broadways doing the bleeding. Mixing tracks your frequencies in the solver's mixed spots, and Trends follows your accuracy week by week.
Import hands brings in the hands you played for money. Upload hand histories from PokerStars (including Zoom), Sisal, CoinPoker or PokerBros, and every preflop decision is graded against the same sim and joins your stats; set Source to Imports to see them on their own. A blunder in your imported hands carries Replay this hand, which deals that spot again in the Trainer with the cards you held. Import reads cash games, with 250 new hands a month on Reg and no cap on Pro.
Reports here is your own game graded against the sim. It is not the same as aggregated reports (the Flop report) in the Range Viewer, a Pro feature that shows the solver's strategy across every flop.
Drill any spot you like
Create Drill, on the table control strip, walks the sim's action tree. Each node shows the position and action with a "drill" hint where the line continues; click through to the spot you care about, say UTG opens and it folds to you, and hit Start Drill Here. Set a hand limit or leave it unlimited.
While a drill runs, an indicator next to the coach line names the spot and counts the hands, and the × ends it whenever you are done. Each table can run its own drill, so two tables can grind two different spots side by side. You can also start a drill from Train this spot in Reports, or from Drill this spot in the Range Viewer.
Table settings: course, pathway, seat and hand filter
The gear on the table control strip opens that table's setup. The Course and Pathway pickers at the top do the same job as clicking courses and badges in the Progress tab, with your completion percentage next to each entry. A course outranks a pathway, so while a course runs, no pathway is selected.
Player position. By default the Trainer rotates you through every seat that has spots to train, a fresh one each hand. Want to grind one position? Tap a chair on the seat ring to pin it, and every hand deals you there until you unpin; a list view does the same job if you prefer names to a diagram. Seats with nothing to train in the current sim are greyed out. Rotate is the right default: position is half the game, and the queue makes sure you do not only practise the comfortable seats.
Hand filter. The range grid below lets you train specific holdings only: click hands in or out, drag the top-% slider, or tick Playable hands only to skip the trivial folds. Short Deck uses a 9x9 grid, and PLO sims swap the grid for a hand search box with Group and Connected to menus; the PLO hand search guide explains the search. Save applies it to that table; Discard backs out. While a filter is on, a gold Filter chip sits at the start of the coach line, so you never forget you are training only part of the range; click it to get back to the filter.
Play more tables
The 1 / 2 / 4 buttons in the header (or the same keys on your keyboard) set how many tables you play at once. Each table runs its own hand, its own controls and its own training focus, so table one can grind First In while table two clears your Mistakes queue. At four tables the Last Action panel is hidden to make room.
Multi-tabling is the closest thing to real volume: decisions come at you the way they do in a session, not one at a time with unlimited time to think.
My Session: the summary
Summary, next to the score bar, opens My Session: scored hands and highest streak up top, then the full breakdown into Correct, Small Error, Large Error and Blunder with counts and percentages, plus hands that were not in range, and your EV loss. What's next closes it with up to three suggestions for what to train next. Close keeps playing; End Session wraps up the run, after a second press on "Really end session?".
Training on your phone
The Trainer runs in the browser, phone included. The mobile layout leads with the table and your score strip, with icon buttons along the top for Hand history, Progress, Stats (Reports on a phone), Table settings and Options. Each one slides up as a sheet, with the same toggles as the desktop menu. Under the felt, New, Sit out and Timer sit in one row, and Options adds Show recommendations, which brings back the welcome screen, and Create Drill. Same grading, same queue, same progress as your desktop sessions, because it is the same account.
Free GTO trainer: what's free and what isn't
A free account gets free preflop sims across several games, in both the Trainer and the Range Viewer, so you can try the Trainer without a subscription. Confirm your email and they sit in the Free tab of My Lobby. On a free sim the Trainer deals preflop decisions. Sims outside your plan do not open in the Trainer.
Full access is sold per game type. RangeConverter Reg is the full Trainer, with preflop drills and postflop drills wherever the sim has postflop, plus the preflop Range Viewer and Reports. RangeConverter Pro adds the full postflop online browser and aggregated reports (for sims with postflop). If you are weighing the two, Range Reg vs Range Pro covers the difference.
Start training
Create a free account, open the lobby. Choose a sim, hit Play now and deal the first hand. Reading a chart shows you the answer. Playing the spot and getting graded shows you whether you know it, and the Trainer keeps the receipts on whether you are actually improving.
Related reading: Online Range Viewer tutorial and What is GTO Poker Trainer and how do I know if I am making progress?
FAQ
What is a GTO poker trainer?
A GTO poker trainer deals you poker spots and grades each decision against a solver's strategy. RangeConverter's GTO Poker Trainer grades you against the same sims you study in the Range Viewer, in Hold'em cash, MTT, Spins, Short Deck and PLO, and tracks your progress spot by spot.
Is there a free GTO poker trainer?
Yes. RangeConverter's GTO Poker Trainer is free on several preflop sims. Confirm your email and you get free preflop sims across several games, in both the GTO Poker Trainer and the Range Viewer. They sit in the Free tab of My Lobby. No credit card needed.
Does the GTO trainer include postflop?
Yes. Wherever the sim has postflop, it is a postflop GTO trainer too, on Reg and Pro. Reg already includes postflop drills, so you do not need Pro to train postflop. PLO sims are preflop only.
How does the Trainer grade my decisions?
You choose Easy, Normal or RNG. Easy counts any action the solver plays at 2% or more as correct. Normal grades you against the solver's most-played action. RNG gives you a roll from 1 to 100 and asks you to play the action whose frequency covers it. Anything the solver plays below 2% is a blunder in every mode.
Can I check my own hands against GTO?
Yes. Upload hand histories from PokerStars (including Zoom), Sisal, CoinPoker or PokerBros in the Reports tab, and every preflop decision is graded against the sim. Imports come with Reg (250 new hands a month) and Pro (uncapped), for cash games.
Start training GTO ranges today! Subscribe to Reg or Pro for Hold'em cash, MTT, Spins, Short Deck or PLO, PLO5 and PLO6 now.