He also is the ATP's record holder for most career aces with 14,470 -- he added 48 more to his total in his final match -- and for the fastest serve at 157.2 miles per hour.

He will retire as the all-time King of Aces, with more than 14,000 untouched rockets — and the fastest serve of all time at 157.2 mph. There is much to admire about the guy: Isner always ...

He has worked with some of the sport’s biggest servers, including former US player John Isner, who set the ATP-recognized record for the fastest serve in 2016, when he blasted a ball 157.2 mph ...

John Isner nails a 146 mph ace at the US Men’s Clay Court Championship in Houston, which is said to be the fastest serve ever fired at the historic River Oaks Country Club.

The towering North Carolina native crushed an ATP-record 14,411 aces in his career and has the fastest serve ever officially recorded, a 157.2 mph (253 kph) bomb he unleashed in the first round of ...

He has worked with some of the sport’s biggest servers, including former US player John Isner, who set the ATP-recognized record for the fastest serve in 2016, when he blasted a ball 157.2 mph ...

He has worked with some of the sport’s biggest servers, including former US player John Isner, who set the ATP-recognized record for the fastest serve in 2016, when he blasted a ball 157.2 mph ...