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
+$39
Return on staked
+5.6%
Bets
5/7 won
Edge vs price
+4.4 pts ±14.3
Cumulative hypothetical P&L, $100 per bet
Oct 28, 23:42 EDTSep 13, 08:07 EDT
Most recent bets in the test
| Market | Entry | Result | Placed |
|---|---|---|---|
| Will Manchester City FC win on 2026-09-13? | 45¢ | called | 41d ago |
| Argentina vs. Cabo Verde: Team to Advance | 94¢ | called | 113d ago |
| Will England win on 2026-06-17? | 58¢ | called | 129d ago |
| Will France win the 2026 FIFA World Cup? | 83¢ | called | 131d ago |
| Will Spain win on 2026-06-15? | 92¢ | missed | 131d ago |
| Australian Open Men's: Carlos Alcaraz vs Alexander Zverev | 85¢ | called | 268d ago |
| Will Zohran Mamdani win the 2025 NYC mayoral election? | 12¢ | missed | 361d 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.