Sinner – Foto: Juarez Santos / Shutterstock.com
Jannik Sinner, world number 2, defeated compatriot Flavio Cobolli 2-0 in sets, with scores of 6-2 and 7-6(4), on Thursday, October 23, 2025, in the round of 16 at the Vienna ATP 500 in Austria. The match took place on the center court at Wiener Stadthalle and lasted 1 hour and 48 minutes. The victory advances Sinner to the quarter-finals of the indoor hard-court tournament. The Italian player aims to repeat his 2023 title win at the event.
Sinner faced no break points in the first set and converted two breaks of serve against Cobolli. In the second set, the match balanced out, with Cobolli saving four break opportunities. The tie-break decided the score, where Sinner remained more consistent.
The number 22-ranked Cobolli showed resistance but succumbed to the pressure from the top Italian. The match marked the first official meeting between the two athletes.
- Sinner recorded 4 aces compared to Cobolli’s 4.
- Cobolli committed 1 decisive double fault in the tie-break.
- Sinner won 82% of points on second serve, against 58% for his opponent.
Se quedó el duelo de compatriotas 💪
Jannik Sinner🇮🇹 consigue el boleto a los 4tos de final de Viena con victoria ante Flavio Cobolli🇮🇹 6-2 y 7-6
😎El No.2 del mundo llegó a 1️⃣8️⃣ victorias consecutivas en canchas bajo techo
‼️Su siguiente rival será Bublik#ErsteBankOpen pic.twitter.com/Qh6pBqkqcH
— Iván Aguilar (@ivabianconero) October 23, 2025
Dominance in first set puts Sinner ahead
Sinner started the match with solid serving and pressured returns from the third game. Cobolli, motivated after recent strong performances, fought to hold serve but lost the break in the third game after an unforced error. The 23-year-old Italian tried to vary the pace, but Sinner responded with deep shots.
The break came again in the fifth game, extending the lead to 4-1. Cobolli saved a set point in the eighth game, but Sinner closed in 45 minutes without conceding chances. This performance reinforces Sinner’s form on fast surfaces.
The set exposed the technical gap between the players, with Sinner landing 69% of first serves.
Cobolli’s resistance forces tie-break in second
Cobolli raised his level after the first set and held his opening service game without issues. Sinner created four break points throughout the set, but his compatriot neutralized all with solid defenses and timely aces. Balance prevailed until 6-6, forcing the tie-break.
In the tie-break, Cobolli led 3-1 but committed a double fault at 3-4, handing over the advantage. Sinner converted the next point and closed with precision on serve. Cobolli’s resistance lasted 63 minutes.
This phase of the match highlighted Cobolli’s improvement in ATP tournaments this year.
Sinner’s indoor winning streak impresses
Sinner extends his consecutive indoor court wins to 18, including the 2023 Vienna title. The player has 14 wins and 4 losses in the tournament throughout his career, according to official ATP data. This record positions him as a favorite for the back-to-back championship.
His unbeaten streak against compatriots reaches 17-0, with Cobolli as the latest victim. Sinner praised his opponent’s progress post-match, noting his rising season. Focus now shifts to upcoming challenges on the tour.
Path toward Vienna semifinals
In the quarter-finals, Sinner faces Alexander Bublik on Friday, October 24, no earlier than 5:30 PM local time. The two have met four times in 2025, with Sinner leading the head-to-head 5-2 overall. Bublik advanced by beating another Italian, Lorenzo Musetti, in the round of 16.
The potential path includes matches against Jack Draper in the semifinals and Alex de Minaur in the final, if the seeded players advance. Sinner seeks his eighth ATP 500 title this year.
The tournament offers 2 million euros in prize money, with the champion taking 390 thousand euros.
History of Italian derby in ATP
The Sinner-Cobolli clash was a first in the professional circuit. Sinner has dominated matches against Italians since 2021, with no recorded losses. Cobolli, in his second Vienna appearance, has one win and two losses at the event.
The match drew attention for the national rivalry but ended with clear superiority from the number 2. Cobolli, runner-up in Hamburg this year, has an 11-17 record on hard courts this season.
Key match statistics in numbers
Sinner scored 67 points total, against Cobolli’s 58. The winner converted 2 of 8 break points, while the loser had no opportunities. Sinner won 77 return points, showing efficiency in returns.
Cobolli landed 66% of first serves but lost 35% of those points. The total duration reflects the balance in the second set.
- Sinner: 8 service games won, 5 return games.
- Cobolli: 5 service games, 3 return games.
- Tie-break: Sinner 7-4 in points.


