Purdia Capital risk calculator
Size every trade on the Purdia Capital Pro Evaluation $100K from its real capital: the $3,000 max drawdown, not the $100K account. See how many losing trades end the day and the account, then run your plan 10,000 times under Purdia Capital's own rules.
Your three numbers
- stop after 2 losses
- stop at −$375
Today
Purdia Capital Instant Funded (EOD) $50KBefore each trade
Purdia Capital Instant Funded (EOD) $50KYour real capital is $1,500, not $50,000: no daily loss limit is stated, 20 end the account. Size every trade so a normal losing streak cannot reach that limit, and set a daily limit of your own.
The loss side
your edge: +0.13R · $9 a trade on averageThe firm states no daily limit: yours is the only one.
End of day: the floor rises with your best closing balance, so after a run of winning days it takes fewer.
The longest losing streak to expect is worked out once the simulation has run: it needs the length of a typical run.
| Losses in a row | All lose next | In a day | In 100 trades | In a typical run |
|---|---|---|---|---|
| 2 · Your stopends the day by your choice | 30% | 44% | 100% | — |
| 20 · Max drawdownthe account is lost | 1 in 155,864 | — | 1 in 4,213 | — |
“All lose next” is the chance that the coming trades are all losers. The other columns are the chance that such a streak happens at least once: in a day of 3 trades and in 100 trades. The typical run is known once the simulation has run. All are exact, from your win rate.
The gain side
goal $2,500 · $113 a winNet of losses it takes more trades: the simulation counts them.
Trade by trade at your win rate, under the firm's rules and your limits.
| Winning trades in a row | Chance in a row | What it means |
|---|---|---|
| 23 wins of $113 | 1 in 94,648,162 | the first target in one go: the one-day rush |
| 12 wins of $113 | 1 in 14,503 | half of the first target in one go |
Consistency
10,000 simulated runs to your payout goal
same seed every timeAssumes a fixed stop (−$75) and target (+$113), independent trades at a 45% win rate, the same size every trade, $0 of costs a trade, no slippage; Purdia Capital's rules as published, checked Sep 27, 2026.
What this does not model
Variable R (stops and targets that move) · partial exits · news gaps · slippage · correlated trades · the firm's discretion · taxes.
Updating the simulation…
Your first payout
Instant Funded (EOD)Updating the simulation…
Cost to reach your goal
price, resets, fee after passingUpdating the simulation…
Ways to size, compared
your plan 10,000 runs · the others 5,000 eachUpdating the simulation…
If you risked…
your row 10,000 runs · the others 2,000 eachUpdating the simulation…
The drawdown floor
end of dayIt follows your end-of-day best balance, $1,500 below it, and never stops rising.
Every new high raises the line for good: keep a fixed buffer and take profits off the table with payouts.
Rushing against your plan
the same win rate and rewardUpdating the simulation…
Kelly and the risk of ruin
what the formulas sayKelly = win rate − loss rate ÷ reward = 0.45 − 0.55 ÷ 1.5 = 8.3% a trade, applied here to your real capital, the $1,500 drawdown. Full Kelly grows fastest with deep swings on the way; most traders use a quarter to a half of it. You are at 0.6 Kelly: above half, losing runs get long.
The chance a losing run eats the whole drawdown (20 losses of room) if you traded these numbers without end, on one account.
The real figure for this account: its daily limit and its targets included.
Risk of ruin ≈ e^(−r × U), where U is the losses of room (the drawdown ÷ the risk of one trade) and r solves p · e^(−r × reward) + q · e^(r) = 1 (p the win rate, q the loss rate). Kelly and ruin assume trades of the same size, one after another.
My plan
keep it beside your chart, share it
MY PLAN · Purdia Capital Instant Funded (EOD) $50K Risk per trade: 5.0% of the $1,500 drawdown ($75) · reward 1.5R · win rate 45% (my estimate) Position: 1 MNQ (20 points stop) Stop for the day: after 2 losses in a row or at −$375 Stop for the day when up: no cap The firm states no daily limit and ends the account after 20 losses in a row Simulated with these numbers: still computing Rules from purdia.com, checked Sep 27, 2026 · fundedkeys.com/tools/risk-planner
The card is this plan's share image: posted in Discord, Telegram or X, the link opens this exact plan.
Each run trades your numbers under the account's rules: its daily loss limit, its max drawdown (static, trailing, end of day or locking at the starting balance as the firm states it), its targets, its minimum days and its consistency rule, and under your own limits. A rule the firm does not publish is left out and named. Rules of the accounts are data of Oct 5, 2026. A calculation, not a promise. Check your own days in the consistency calculator