How to Rank Traders Fairly (and Why ROI Fails)
Raw ROI crowns the luckiest gambler, not the best trader. How to rank traders fairly: risk adjustment, field strength, many events and one person, one rating.
Ranking traders sounds simple: sort by profit. In practice that produces the worst possible ranking — one that rewards the luckiest gamble and hides everyone who trades well.
This article sets out what a fair ranking of traders needs, and how the PnL World Rating (PWR) is built to meet each requirement.
Why raw ROI fails
Look at the winners of almost any open demo trading contest scored by return on investment. Winning returns of thousands — sometimes tens of thousands — of percent are common. Those results say very little about skill:
- Variance wins. In a large field, someone taking maximum leverage on every trade will get lucky. ROI ranks that person first.
- There is no denominator for risk. A +500% that came after a −90% fall looks the same as a smooth +500%.
- One event is a sample of one. Even a fairly won contest can be a good week.
- Accounts multiply. If entering is free, ten accounts with ten strategies guarantee one winner.
A fair ranking has to fix all four.
Requirement 1: Score risk, not just return
Inside each tournament, PnL World ranks traders by return ÷ (1 + maximum drawdown). A return that cost a deep fall in the account scores lower than the same return earned with control. An account that is liquidated is ranked below everyone who kept theirs. See drawdown-adjusted return for the full calculation.
Requirement 2: Rank places, not percentages
A rating should not add up percentages across events. A +4% that won a strong field is a better result than a +40% that finished tenth in a field where everyone took huge risks.
PWR is ordinal: it counts the place you earned, not the size of your return. The winner of a tournament takes the full points for that format, and places below take a published share of them.
Requirement 3: Weigh the field
Beating two inactive accounts is not the same as winning a deep, strong field. Every PWR result is multiplied by field strength, which grows with:
- the rating level of your opponents,
- the share of opponents who are verified,
- the size of the field.
A win in a near-empty table brings only a fraction of the format's points; a top finish against many strong, verified traders brings the full amount.
Requirement 4: Many events, weighted by length
One result can be luck; a career cannot. PWR is the sum of every rated result, and longer tournaments carry far more weight — a Monthly Major is worth forty Hourly tournaments. To reach the top of the ranking, a trader has to perform repeatedly, including in the long formats where luck averages out.
Requirement 5: One person, one rating
A ranking is only as honest as its identities. To appear on the public World Rankings, a trader verifies they are a unique person. Extra accounts cannot farm points against each other or bury a bad record.
Requirement 6: Results nobody can edit
Self-reported numbers can be edited, cropped or chosen. On PnL World every order is executed by the platform's engine on live market data, and the result is calculated by the platform. Final standings stay public permanently. See verified trading track record.
The ranking, in one table
| Problem | What fixes it on PnL World |
|---|---|
| Lucky all-in wins | return ÷ (1 + max drawdown); liquidation ranks last |
| Huge returns in weak fields | places, not percentages; field strength |
| One good week | sum of all results, long formats weighted most |
| Multiple accounts | verified to rank, one person — one rating |
| Edited or selected results | platform-executed trades, permanent public standings |
FAQ
Why not rank by profit in dollars? Because everyone would need the same account to make it fair — and then the question is still how much risk was taken. Tournaments solve the first part with an equal bankroll; the drawdown-adjusted score solves the second.
How many tournaments make a reliable rating? More is better, and long formats count most. You are placed in a division after your first five rated tournaments.
Can a new trader reach the top quickly? A strong run shows up immediately on the Today, Week and Month boards. The all-time ranking is built to take a sustained record, especially in the long formats.
PnL World tournaments are simulated: trades are executed against live market data, but no real-money positions are opened on any exchange. Nothing here is financial advice.
Next: PnL World Rating (PWR) explained · See the World Rankings