Jannik Sinner delivered 15 aces in his semi-final victory over Alexander Zverev at the Miami Open, showcasing a transformed serve. The world No. 2 has hit around 60 aces across five matches, averaging 11.1 per match this year. He now faces Jiri Lehecka in the final, one win from the Sunshine Double.
Sinner's serve has reached new heights in 2026. He lands 67.5% of first serves, up from 61.9% last year, winning 81% of those points—a career best. Service games won stand at 94%, despite a slight dip in second-serve points to 57.8% from 59.1% in 2025. According to ATP Beyond The Numbers, these gains have doubled his aces from a 6.3-match average last year to 11.1 now. In Miami, he struck 9 aces against Damir Dzumhur, 7 versus Corentin Moutet, 15 against Alex Michelsen, 14 over Frances Tiafoe, and 15 on Zverev. He lost serve only once, to Michelsen in the fourth round. Against Zverev, Sinner landed 74% of first serves, won 78.9% of points behind them, and held every service game. Sinner, who captured Indian Wells earlier this month, leads Lehecka 4-0 head-to-head without dropping a set—their last meeting a 6-0, 6-1, 6-2 rout at the 2025 French Open. Only seven men have achieved the Sunshine Double: Jim Courier, Michael Chang, Pete Sampras, Marcelo Rios, Andre Agassi, Roger Federer, and Novak Djokovic. The last came nine years ago. Lehecka advanced by dominating Arthur Fils 6-2, 6-2, landing over 70% of first serves without facing a break point. Sinner remains cautious about the feat. In an interview with Tennis Channel, he said, “Grand Slams are always different. I feel like Grand Slams are best of five, and also in an emotional part, you feel it a bit more.” He added, “But everything is very tough in our sport. Winning at every level. Even 250’s or 500’s are tough, tough tournaments to win, so every victory is great.”
