Polymarket's most profitable account is sports prediction trader Swiss Tony, with profits of approximately $12.25 million.

BlockBeats news, October 28 - The Financial Times published an analysis stating that since April 2026, the most profitable account on Polymarket has been a sports prediction account under the pseudonym swisstony, which gained approximately $12.25 million during the period. After analyzing 170 million predictions from about 1.2 million retail accounts, the Financial Times found that the leaderboard includes both large high-odds bettors who nailed longshots and high-frequency trading-style accounts. swisstony opened positions approximately 184,000 times, covering more than 113,000 markets, with cumulative investment of about $657 million. Since June, there was a streak of 26 consecutive days on which it placed at least one prediction almost every hour.