Home Glossary Prop firm challenge
Prop firm challenge
Prop firm challenge — A paid evaluation with a profit target and two drawdown limits, where the limits — not the target — decide almost every outcome.
Almost everyone entering an evaluation focuses on the profit target, and almost nobody fails because of it. The failures come from the daily loss limit and the drawdown rule — and from the fact that both are usually measured on intraday equity, which is stricter than any statement can confirm.
In plain English
A challenge is an evaluation you pay to attempt. Reach a profit target — commonly 8–10% — without breaching a daily loss limit, usually around 5%, or a maximum drawdown, usually 6–12%, and you are given a funded account and a share of its profits. Breach anything and the attempt is over.
The two limits are different in kind, and confusing them is expensive. The daily limit resets each day, so it is about a single bad session. The maximum drawdown does not reset, so it is about the whole attempt. You can pass the first every day for a month and still fail the second by accumulating.
Then there is static versus trailing, which is the distinction that catches people. A static drawdown floor sits at a fixed percentage below your starting balance and never moves. A trailing one follows your equity high upward — so making money moves the floor up behind you, and giving some back can breach a limit you were nowhere near when you started the day. Under trailing rules, an account that is up 4% and gives back 6% can fail while still in profit.
The formula
Static floor = starting balance × (1 − max drawdown %) Trailing floor = highest equity so far × (1 − max drawdown %) Daily limit = starting balance × daily loss % (usually reset at the firm’s daily rollover)
- Most firms measure both limits on INTRADAY EQUITY, not on closed balance — so a floating loss can breach a rule you never realised.
- Some firms trail only until the account reaches its target, then freeze the floor at the starting balance. Read which.
- A minimum trading-days requirement is common, and it stops a single lucky trade from passing.
Any statement-based check of these rules is an approximation, and its direction of error is known: it is more lenient than the real rule, because it cannot see the intraday equity lows that actually trigger breaches.
Worked example — the demo account
The bundled demo account tested against a typical 10 / 5 / 10 rule set on a $25,000 account, using its own trades.
| Account size | $25,000.00 | |
|---|---|---|
| Profit target, 10% | $2,500.00 | |
| Net profit achieved | +$4,293.45 | |
| Daily loss limit, 5% | $1,250.00 | |
| Worst single day | −$418.59 | |
| Max drawdown, 10% static | floor at $22,500.00 | |
| Lowest balance reached | $24,679.52 | |
| Deepest fall from a peak | $3,005.56 |
It passes — and the last two rows are the reason this page exists.
Look at them together. The account fell $3,005.56 from a peak, which is more than the $2,500 the drawdown rule permits. It did not breach anything, because a STATIC floor is measured from the STARTING balance, and by the time that fall happened the account was well into profit — the lowest balance it ever printed was $24,679.52, comfortably above the $22,500 floor. Peak-to-trough drawdown and a prop drawdown rule are two different measurements, and confusing them is how people misread their own chances.
Under a trailing floor the same trades also pass, but with far less room: a trailing rule would have lifted the floor behind every new high, so most of that $3,005.56 fall would have been eating into the allowance rather than into profit already banked.
And the balance-based caveat is not a technicality — it is the whole risk. The real breach test runs on intraday equity, which was lower than any closed-balance figure in this file at moments the file does not record. A pass here means "not obviously failed", and nothing stronger.
Every figure above is from the demo account TapeSheet ships with — 96 closed trades, generated from a fixed seed. Open the same account →
What this does not tell you
The caveat is the part worth reading. Most tools put it in a footer, if they print it at all.
- A statement cannot verify an intraday-equity rule. The file has closed trades only, so every check is against balance and is therefore more lenient than the firm’s. Passing on a statement is not passing.
- Rules vary far more than the marketing suggests. Reset timing, whether the floor trails after the target, weekend-holding rules, news-trading restrictions and consistency rules all differ between firms and between products at the same firm.
- Consistency rules are not modelled by anyone. Several firms cap the share of total profit that may come from a single day or trade, which can fail an otherwise passing account for the offence of having one very good day.
- Passing is not the outcome you are buying. The funded phase usually carries the same limits, and the same trading that passed a challenge must then survive them indefinitely.
Where TapeSheet shows it
The prop tracker runs your statement against configurable rules — account size, target, daily limit, maximum drawdown, static or trailing, minimum days — and shows the day the first breach occurred, if any, with a day-by-day table. It states plainly next to the verdict that the evaluation is balance-based and therefore more lenient than the firm’s.
Questions
Why did I fail while still in profit?
Almost certainly a trailing drawdown. The floor follows your equity high upward, so a run of profit lifts the level you must not fall below. Give back more than the drawdown percentage from a new high and you breach it while your account is still above where it started. Check whether your firm trails on equity or on balance, and whether it stops trailing once the target is reached — those two details decide most of these cases.
Can TapeSheet tell me if I would have passed?
It can tell you whether your CLOSED TRADES would have passed, which is a useful approximation and not the same test. Firms measure intraday equity, and your equity was lower than your balance at various points that no statement records. Treat a pass in the tracker as "not obviously failed" rather than as a pass — the error runs in the lenient direction, always.
What is the most common reason people fail?
The daily loss limit, usually in one session after an early loss — the position size goes up to make it back, and the limit is reached long before the target is. That failure is a position-sizing decision rather than a market event, which is why the most useful preparation is checking whether your normal risk per trade could produce a daily loss near the limit in a bad but ordinary run.
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