Tennis stats, records and data. From the fastest serve ever recorded to the all-time Grand Slam leaderboard, this section covers the numbers that define the sport’s history and shape its present. All records verified against official ATP, WTA and ITF sources.

ATP & WTA Season Leaders 2026

Who is leading the tour in aces, break points converted, tie-breaks won and serve rating? Our ATP & WTA Season Leaders 2026 page tracks the statistical leaders across three key categories:

• Serve Leaders — aces per match, first serve %, service games won
• Return Leaders — return rating, break points converted, return games won
• Under Pressure Leaders — tie-breaks won, break points saved, deciding sets record

Category	ATP Leader	WTA Leader
Serve Rating	Reilly Opelka (301.8)	Aryna Sabalenka
Return Rating	Jannik Sinner (165.7)	Iga Swiatek
Under Pressure Rating	Jannik Sinner (261.2)	Aryna Sabalenka
Win/Loss Record	Jannik Sinner	Aryna Sabalenka

View all 2026 season leaders →

Tennis Records

The records below represent the benchmarks of professional tennis. Each links to a dedicated page with full data, historical context and player comparisons.

Fastest Tennis Serve Ever

Sam Groth holds the official ATP-recognised record for the fastest serve ever recorded in professional tennis, clocking 263 km/h (163.4 mph) at the 2012 Busan Open Challenger in South Korea. The all-time fastest recorded serve is disputed — several readings above this figure exist but were not recorded under conditions accepted by the ATP. On the women’s side, Sabine Lisicki holds the WTA record at 210.8 km/h (131.0 mph). Full records, top 10 lists and active player comparisons are covered in our fastest tennis serve page.

Most Grand Slams Won

Novak Djokovic holds the all-time record for Grand Slam singles titles with 24, ahead of Rafael Nadal (22) and Roger Federer (20). On the women’s side, Serena Williams leads with 23 titles, followed by Steffi Graf (22) and Chris Evert and Martina Navratilova (both 18). With Carlos Alcaraz, Jannik Sinner and Iga Swiatek all in their mid-twenties, the all-time records remain very much in play over the coming decade. Full data and rankings on our most Grand Slams won page.

Head-to-Head Records

For career head-to-head records between the top players, visit our H2H comparison pages. The Alcaraz versus Sinner page covers every meeting between the two players across all surfaces and tournaments.

Player Rankings

Current ATP and WTA singles rankings are covered in our rankings section, updated every Monday.