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Tools · Backtest

What if you had copied them?

Put a fixed stake on every graded flag a wallet made, at the price it paid, and see the hypothetical result. This looks backward only, and it is not a prediction or a recommendation.

Hypothetical P&L
+$174
Return on staked
+19.4%
Bets
8/9 won
Edge vs price
+15.3 pts ±14.3
Cumulative hypothetical P&L, $100 per bet
Aug 13, 20:09 EDTSep 17, 16:36 EDT

Most recent bets in the test

MarketEntryResultPlaced
Lions vs. Bills70¢called37d ago
Will Real Betis Balompié win on 2026-09-17?64¢called37d ago
Will Elche CF win on 2026-09-15?95¢called39d ago
Will Deportivo Alavés win on 2026-09-15?57¢missed39d ago
Dota 2: Team Yandex vs Team Spirit (BO3) - The International Playoffs67¢called63d ago
Will United Russia (ER) gain the most seats in the next Russian parliamentary election?72¢called65d ago
Will United Russia (ER) gain the most seats in the next Russian parliamentary election?75¢called67d ago
Will United Russia (ER) gain the most seats in the next Russian parliamentary election?76¢called68d ago
Will New People (NL) gain the most seats in the next Russian parliamentary election?86¢called72d ago

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Why this overstates what you'd get

  • You'd be late. Flags show up after the trade, often after the price has moved. Use "Copy delay" to price each bet 1 to 24 hours later from market history, or add an extra cost per fill.
  • Picked after the fact. Wallets that look good here were chosen because they did well. Tick the out-of-sample box to test only bets made after the cutoff.
  • Small samples are noisy. Look at the ± standard error. A few lucky long shots can make the P&L.
  • Fees: many Polymarket markets charge no trading fee. Some charge a taker fee of rate × min(price, 1−price) per share. Set "fee rate" to model it.
  • Ignores spreads, liquidity, partial fills, and sells before resolution. It counts only graded flags (placed ≥1h before close, 3¢–97¢).

Hypothetical results from public data. Not financial advice.