$10,000 parlay (6 legs) — ATP Tokyo, Japan Men Singles

Matteo Arnaldi tracked 10 high-roller bets on tail.bet totaling $177,211, with backers settling at a 55.6% win rate across nine singles and one parlay. The largest captured wager was $27,875 on a single against Hubert Hurkacz, which lost. Despite the majority of positioned bets favoring Arnaldi directly, the aggregate position returned negative $52,771 and a negative 29.8% ROI on closed outcomes, with ATP Challenger Cagliari representing the most common tournament context.