$11,388 on Karen Khachanov - Ethan Quinn — ATP Halle, Germany Men Singles

Ethan Quinn attracted four high-roller bets tracked on tail.bet, totaling $52,339 across singles and a parlay. The largest single wager was $17,012 on Alejandro Tabilo, which settled as a winner but realized just $7,518. Despite a perfect 100% win rate on two settled outcomes, the entity posted a $20,740 loss overall, reflecting significant cashouts that offset winning positions and resulted in negative 39.6% ROI.