A Polymarket trader turned $676 into $67,608 by exploiting a rare announcing error during a UFC heavyweight bout between Tyrell Fortune and Marcin Tybura. The trader, known on Polymarket as LlamaEnjoyer and on X as Verrissimus, noticed UFC presenter Bruce Buffer briefly declared Tybura the winner, which caused Polymarket shares backing Fortune to plunge to one cent.
LlamaEnjoyer canceled an almost $100,000 order on Tybura after realizing something was “off,” then bought one-cent shares in Fortune with $676. Seconds later, Buffer corrected himself and declared Fortune the winner, yielding the trader a near 100x return and roughly $67,000 in profit.
The trader said the trade was placed within about 50 seconds of the incorrect announcement and before commentators said, “We have a mistake.” LlamaEnjoyer described it as “easiest 100x ever.”
The episode highlights how quickly odds on prediction markets can swing during live events. Prediction markets have seen rapid growth in crypto, with trading volumes surpassing $10.4 billion in March — a tenfold increase from March 2025 — and more than 865,000 users placing bets in March across platforms such as Polymarket, Kalshi and Opinion. Markets now cover a wide range of events from sports and politics to finance and culture.
Related industry moves include a new $600 million investment in Polymarket by ICE’s parent company. The incident and broader market activity underscore both the opportunities and the speed-driven risks inherent in live-event prediction trading.
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