World No. 1 Jannik Sinner is through to the Wimbledon men’s singles semifinals after a straight-sets win over Jan-Lennard Struff on Court 1 in London. The top seed closed it 7-5, 7-6(4), 6-3 in an ATP Grand Slam quarterfinal that balanced fine margins with firm serving. It was tight early, then tilted Sinner’s way as the numbers stacked up. Sofascore tracked every point and told a clear story in the box score. Here is how the stats shaped the result on grass.

Serve set the tone on grass

On a surface that rewards first-strike tennis, Sinner’s serve led the way. He struck 16 aces to Struff’s 12 and kept his double faults at just two, compared with three from the German. The bigger gap came in first-serve consistency, where Sinner landed 70 of 108 first serves for 65 percent, while Struff hit 50 of 101 for 50 percent. When the first ball went in, Sinner won 84 percent of those points to Struff’s 80 percent, a steady advantage in hold pressure.

Even the second serve leaned Sinner’s way in reliability. He landed 36 of 38 second serves, with Struff making 48 of 51, both exceptionally high accuracy for a grass-court match. Points won behind the second ball were close at 50 percent for Sinner and 49 percent for Struff, but the Italian’s greater first-serve volume reduced exposure on that wing. Across the match, Sinner won 78 service points to Struff’s 65, protecting his games more cleanly. He also produced the longest hot streak of the day with seven points in a row, compared with five for Struff. Those serve-led patches were key in taking two tight sets before closing out the third with authority.

Return pressure and break-point math

Sinner didn’t just serve well; he returned with bite. He claimed 36 receiver points to Struff’s 30, finding small but steady gains. Against first serves, Sinner won 20 percent of return points compared with 15 percent for Struff, which matters when the margins are thin. On second-serve returns, both players won 50 percent overall, but Sinner saw more of them, facing 51 Struff second serves to Struff’s 38 from Sinner. More looks brought more pressure.

The break-point column delivered the headline difference. Sinner converted three break points, while Struff managed just one. That tallied with the save numbers too. Struff faced nine break points and saved six, a strong effort that still left him under the pump. Sinner faced only two and saved one. Struff’s lone break came in the second set, but the Italian immediately kept the door shut elsewhere. Sinner also produced three return winners, while Struff had none, a small detail that reflects who was dictating on key returns.

Winners, errors and shot selection

The pure aggression numbers were close, yet the efficiency gap was not. Sinner finished with 30 total winners to Struff’s 27. The unforced errors told the bigger story, with Sinner at 16 and Struff at 29. That winners-to-unforced ratio gave Sinner a wide cushion in rallies that decided games. On the unforced ledger, Sinner’s forehand and backhand sat at 8 and 6 respectively, while Struff logged 14 and 12. Clean hitting beat risk without reward.

Shot selection was a theme. Struff collected seven volley winners and clearly looked to finish points at net. Sinner, by contrast, recorded zero volley winners but did strike 11 groundstroke winners to Struff’s eight, keeping the balance on the baseline. Interestingly, total errors on groundstrokes were higher for Sinner at 51 to Struff’s 46, yet the Italian kept the unforced count far lower, suggesting most of his misses came under pressure. Sinner did tally more total forehand errors than Struff, 26 to 21, but he offset that with fewer backhand mistakes and better control of big points. Add the three return winners for Sinner, and the picture sharpens further. Efficiency, not just volume, pushed him through.

Set-by-set: 7-5, 7-6(4), 6-3

The first set hinged on a single break. Sinner’s first-serve numbers were steady at 65 percent in and 83 percent points won, while Struff posted 57 percent and 82 percent. The German did a good job saving two of three break points, but he never created a chance on Sinner’s serve. A seven-point run from the Italian underlined where the late momentum lived, and it was enough for 7-5.

Set two was the knife edge. Each player broke once, but Sinner’s serve raised its ceiling again. He fired nine aces in the set, landed 63 percent of first serves, and won 83 percent behind them. Struff remained dangerous, saving two of three break points and grabbing his only break of the match, yet Sinner edged the service-points tally 31 to 27. In the tie-break, the top seed closed 7-4, leaning on that first ball when it mattered.

The third set showed the clearest split. Struff’s first-serve percentage dipped to 36 percent, which left too many second serves exposed. Sinner took 55 percent of second-serve return points in the set and 20 percent against the first serve, numbers that speak to constant pressure. Behind his own serve, Sinner won 88 percent of first-serve points and 63 percent on the second, and he added four more aces. He converted one break from three chances, allowed zero breaks, and wrapped it 6-3. With Sinner serving five games to Struff’s four, the scoreboard flowed to a clean finish.

What the numbers say about form

Total points landed at 114 for Sinner and 95 for Struff, a comfortable margin that matches the straight-sets score without overstating dominance. The game count, 20-14 to Sinner, and service games won, 16-13, track cleanly with three breaks to one. Max games in a row favored Sinner 3 to 2, which reads as consistent control rather than streaky swings. The only tie-break went the Italian’s way 7-4, another nod to clutch serving.

As the ATP’s top seed at Wimbledon, Sinner handled a tricky opponent with measured aggression and tidy decision-making. Struff, currently ranked 40, brought plenty of heat and volleyed well, but the gap in unforced errors and first-serve consistency proved costly. On grass, those fractions usually decide who gets across the line. Sofascore users could see it live in the point-by-point and the full post-match box score. For deeper context, the Sofascore Rating and advanced stats present how service dominance and return pressure stacked up over three sets. With this win locked in, Sinner marches on to the semifinals with numbers that travel well on grass.

For fans following Wimbledon, Sofascore remains a reliable way to track live scores, tie-break swings, return points, and serving trends in real time. This match was a blueprint example of how small edges add up across a Grand Slam quarterfinal. When a player lands more first serves, owns the clutch return points, and keeps unforced errors low, the score usually follows. Sinner did exactly that.