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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
−$143
Return on staked
-11.0%
Bets
6/13 won
Edge vs price
-7.8 pts ±13.6
Consistency check. Older half of bets: +14.0 pts (4/6). Newer half: -26.6 pts (2/7). The edge has faded in recent bets.
Cumulative hypothetical P&L, $100 per bet
Oct 01, 08:13 EDTOct 24, 15:24 EDT

Most recent bets in the test

MarketEntryResultPlaced
Spread: Heat (-3.5)50¢missed6h ago
Kansas State vs. Arizona State51¢missed13h ago
Clippers vs. Lakers76¢called1d ago
Grizzlies vs. Warriors60¢missed1d ago
Spread: Warriors (-3.5)52¢missed1d ago
Pelicans vs. Jazz47¢missed1d ago
Spread: Raptors (-10.5)50¢called3d ago
Kings vs. Clippers64¢called3d ago
Spread: Nets (-1.5)52¢called3d ago
Atlanta Braves vs. Los Angeles Dodgers59¢missed20d ago
Cardinals vs. Giants43¢called21d ago
Cowboys vs. Texans41¢called22d ago
Steelers vs. Browns57¢missed23d ago

Wallet page · Set an alert for this wallet

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.