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An anonymous Polymarket account, swisstony, generated about $12.25 million in profits from sports betting, the Financial Times reported. Based on the FT’s analysis of 1.2 million Polymarket user accounts and around 170 million betting records since April 2026, swisstony posted the largest profit among the accounts reviewed. The account’s cumulative wagers totaled about $657 million, with an average return of 1.86%, as the gains were built by consistently reinvesting capital. The account has not placed any new bets over the past two months, however, and its identity remains unknown. Separately, 68% of accounts that placed bets of more than $100 recorded losses.