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
−$84
Return on staked
-9.3%
Bets
4/9 won
Edge vs price
-2.0 pts ±16.2
Cumulative hypothetical P&L, $100 per bet
Jan 23, 14:59 ESTOct 04, 10:50 EDT
Most recent bets in the test
| Market | Entry | Result | Placed |
|---|---|---|---|
| Chiefs vs. Raiders | 67¢ | called | 20d ago |
| Steelers vs. Browns | 58¢ | missed | 22d ago |
| Spread: Eagles (-3.5) | 52¢ | called | 25d ago |
| Eagles vs. Bears | 36¢ | called | 25d ago |
| Panthers vs. Falcons | 43¢ | missed | 34d ago |
| Spread: Duke Blue Devils (-6.5) | 51¢ | called | 210d ago |
| Patriots vs. Broncos | 34¢ | missed | 272d ago |
| Rams vs. Seahawks | 44¢ | missed | 272d ago |
| Patriots vs. Broncos | 33¢ | missed | 273d 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.