TFT coach for Windows · Set 17 · Patch 17.6
The coach
Dolfo reads your round, factors in the lobby — including what your opponents buy out of the pool — and tells you what to do RIGHT NOW. Not telepathy. Hypergeometrics.
ALL-IN: Roll for Xayah 2★ right now — until your board holds.
One loss costs at least 8 HP — you only have 31 left.
Xayah 2★: 2 copies to go — 80% after ~39 rolls (78 gold rolling + 8 buying = 86).
Calculated in advance, not hoped for — the math is below, check it.
Live calculator — the same math as in the app
Check the math yourself.
This is not a demo animation — it's Dolfo's real engine in your browser. Set up your situation and Dolfo tells you what your wanted champion will cost in gold, before you roll.
Or pick an example:
Pro option: how drained is the pool for your champion?
Dolfo's call:
grey = below 50% · teal = above 50% · gold = above 80%
Shop odds for this cost tier: 30,0 %
Total cost = rolling (2 gold per roll) + buying the copies. Copies of your champion you spot on opponents go into the pro option — in the app, Dolfo counts scouted enemy copies automatically.
Three proofs instead of three claims
One instruction. One reason. One number.
Dolfo doesn't speak in maybes. Every call ships with its why — verbatim from the app:
Slow-roll: only roll the gold above 50 for Xayah 3★ — your interest stays intact.
This keeps +5 interest per round while you dig through the pool.
You are loss-streaking: set your stabilization point NOW.
A loss streak of 4 pays +1 gold per round — but it only pays off with a planned exit.
// P(target unit in one shop slot)
P(slot) = odds(level, cost) × copies left ÷ tier left
P(slot) = 0.30 × 7 ÷ 127 ≈ 1.7%
P(shop) = 1 − P(no hit in 5 slots) ≈ 8.0%
We don't promise 100% — we calculate it.
This is the complete formula for one shop slot. No magic, no secret model:
Level 8, 4-cost: 30% tier odds × 7 copies left ÷ 127 tier cards ≈ 1.7% per slot. “Left” means 3 of 10 copies of your champion are already gone — yours and the ones you scout on opponents. Across five slots, drawn without replacement: ≈ 8.0% per shop. Exactly what the calculator above computes — and the app, every single round.
Survival › streak › tempo › economy.
Behind every instruction stands a principle. Every "Why?" learning box in the app cites it — for example:
Keep your gold at full ten-steps between fights. Every full 10 gold pays 1 gold of interest per round.
Sitting just below a breakpoint all game leaks 10–20 gold — the difference of an entire rolldown.
— econ-interest-breakpoints, from the app's principles database
What Dolfo can't do
80% means: one in five rolldowns fails.
Dolfo tells you that in advance — and that's exactly why you can trust him.
- He doesn't guarantee wins.
- TFT stays variance. Dolfo shifts your decisions from "feels right" to "calculated right" — the game still rolls the dice.
- He can't see opponent buys during your rolldown.
- No model in the world can predict simultaneous purchases. Dolfo calculates with the pool state you give him — scouted copies sharpen the math.
- He doesn't play for you.
- No memory reading, no process injection, no auto-play. Dolfo is a coach, not a cheat — every decision stays yours.
- He doesn't replace practice.
- Dolfo explains every instruction with the principle behind it. If you only click without reading, you won't improve — if you read along, you will.
One price. Everything included.
Get the coach that never guesses.
No ads, no data selling. Dolfo runs locally on your PC and belongs on your second monitor — your game data stays with you.
Honesty stays honesty: Dolfo doesn't guarantee wins — he guarantees you'll never roll blind again.
Dolfo Premium
€15/ month, cancel anytime
- Live trainer: one clear call per round, backed by a number
- Exact roll odds & rolldown plans (50/80/95%) — scouted enemy copies sharpen the math
- Gold, interest and streak math in real time
- Data updates for every patch — set rotations included
- Fully in English and German, 2 themes
- Runs locally · works offline · your data stays with you
Windows 10/11 · one account for web and app · 24 h free trial
Questions, answered honestly
Is Dolfo a cheat?
No. Dolfo reads nothing from the game — no memory reading, no process injection, no auto-play. You enter your round yourself (in ~20 seconds, with autocomplete), Dolfo calculates and explains. He's a coach next to the game, not an intrusion into it.
What does Dolfo cost — and can I try it first?
Dolfo Premium costs €15 per month, cancel anytime. Trying it is free: the calculator at the top of this page runs with no account at all, and a free account gets you 24 hours of full access to the app — no payment details required, no auto-conversion.
Do I need an account?
For the calculator here on the page, no — it runs with nothing attached. For the app, yes: one account of email and password, the same for the website and Dolfo. After login the server issues a short-lived license, then Dolfo keeps working offline — your game data never leaves your machine. One account is bound to one device; you can switch it yourself on dolfo.xyz.
Where do the probabilities come from?
From the shop odds and pool sizes of Set 17 (patch 17.6), combined with binomial and hypergeometric distributions — exact, not simulated. The formula is right on this page; the calculator runs the same code as the app, locked in with golden tests.
Does Dolfo run on Mac or Linux?
Currently Windows 10/11 only. Honest answer: Mac/Linux are not in development — demand will decide whether that changes.
What happens when the set rotates?
Set 17 is expected to end on 2026-07-29. Dolfo's knowledge base (constants, comps, principles) is maintained per patch and updates at the push of a button — a set rotation means a data update, not a reinstall, and no extra charge.