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UFC Announcer’s Miscall Lets Polymarket Trader Turn $676 Into About $67,000

The slip highlights a latency gap in live prediction markets vulnerable to split‑second errors.

Overview

  • A Polymarket user known as LlamaEnjoyer, who posts as Verrissimus on X, bought Tyrell Fortune shares at about 1 cent after Bruce Buffer briefly named Marcin Tybura the winner, then booked roughly $67,000 when the result was corrected.
  • Prices on the platform swung because prediction markets sell $1 outcome shares that track perceived odds, so Fortune’s shares crashed on the wrong call and then jumped to $1 once the official winner was restated.
  • The mistake came from the bout announcer, which raises a settlement issue because platforms rely on an official source to resolve contracts, and coverage has not reported any payout reversal tied to this trade.
  • Lawmakers are already pressing the sector, with a March 23 bill from Senators Adam Schiff and John Curtis that seeks to treat sports prediction contracts as gambling under state control, which could add pressure on platforms like Polymarket.
  • Polymarket has been courting a mainstream image with a new Washington, D.C. venue that displays live UFC and geopolitical markets, a push that now faces questions about integrity when real‑time errors move prices.