Polymarket market · Sports

US Open WTA: Kimberly Birrell vs Petra Marcinko

Resolved: Kimberly Birrell won · See it on Polymarket ↗

5 whales put $63K into this market since Aug 30, 97% of their buying on Petra Marcinko. Kimberly Birrell won. Of the 4 whales whose whole position we captured, 0 made $0 and 4 lost −$8.5K: −$8.5K between them.

The whales on this market

5 whales
Whale · recordBackedBoughtSold Made on it
Dapper-Pub-Warmth
74 settled bets Can't tell from luck
Petra Marcinko @ 81¢ $41K $13K —
Powerless-Savannah
2,259 settled bets Beat the odds*
Petra Marcinko @ 76¢ $5.0K — −$5.0K
Witty-Matrix-Numismatist
1 settled bets Too few bets
Petra Marcinko @ 82¢ $1.3K — −$1.3K
Critical-Play-Yellowjacket
1 settled bets Too few bets
Petra Marcinko @ 83¢ $1.2K — −$1.2K
Mindless-Monopoly
14 settled bets Can't tell from luck
Petra Marcinko @ 74¢ $1.0K — −$1.0K

Where the whale money went

  1. Petra Marcinko lost
    $48K
    97% of whale buying · 5 buyers · $11K sold
  2. Kimberly Birrell won
    $1.7K
    4% of whale buying · 1 buyer · $2.4K sold

From the whale trades we capture ($1,000+) on this market, Aug 30 to Aug 31, 2026. Whether it resolved, and each whale's record, are from the weekly run. “Made on it” is what each whale took out plus what its shares paid at the end ($1 for the winner, nothing for the rest), counting only trades we captured. A dash means it sold more than we saw it buy, so part of its position is missing and it's left out of the totals. How profit is counted.

Results and records from the weekly run (1791223421).

About this data · weekly run 1791223421, computed 2026-10-05 18:03 UTC
Source: hopium_compute run 1791223421 (PG metrics_*)
  • Poly: only >=$1k trades captured -> per-wallet PnL partial
  • Limitless: price/contracts only since 2026-09-05
  • latest window has the most unresolved markets
  • Limitless wash/value-transfer trades excluded (see wash); Poly off-book is report-only
  • fair value covers Limitless crypto markets only (Binance); stocks have no reference feed