S‑Works Loses $247.5K on NO Side of UFC Prelim Market After Outcome Turns YES

On May 16, 2026 at 10:26 PM UTC, a trader using the label S‑Works bought $247,470 worth of shares on Polymarket, wagering that the outcome of the UFC Fight Night: Alice Ardelean vs. Polyana Viana (Women’s Strawweight, Prelims) would be NO. The position comprised 247,719 shares at an entry price of 100 cents each. The market later resolved with a YES outcome at 12:53 AM UTC on May 17, resulting in a realized loss of $247,470.

Large trades on prediction markets can shift liquidity and signal a participant’s conviction, but they do not predict future results. The size of S‑Works’ bet—over a quarter of a million dollars—drew attention from observers watching whale activity on Polymarket, illustrating how a single large position can dominate a relatively thin market.

Data compiled by Polywhale captured the trade details, including the condition identifier and the on‑chain record of the transaction, allowing the public to view the timing and size of the wager.

Because the market resolved YES, the NO shares expired worthless, locking in the loss for S‑Works. The outcome is final and the loss cannot be recovered, underscoring the risk inherent in binary‑outcome markets.

The UFC Prelims market, while niche, can experience heightened volatility when a whale places a sizable bet, making it a focal point for those tracking unusual activity on Polymarket.