John Robert Isner is an American professional tennis player. He has been ranked as high as world No. 8 in singles and No. 19 in doubles by the Association of Tennis Professionals.

Considered one of the best servers ever to play on the ATP Tour, Isner achieved his career-high singles ranking in July 2018 with his maiden Masters 1000 crown at the 2018 Miami Open and a semifinal appearance at the 2018 Wimbledon Championships.

He has also twice reached the quarterfinals at the US Open in 2011 and 2018, the latter of which helped qualify him for an ATP Finals appearance later that year.

At the 2010 Wimbledon Championships, he played the longest professional tennis match in history, requiring five sets and 183 games to defeat Nicolas Mahut in a match that lasted 11 hours and 5 minutes, and was played for three days.

Isner holds the record for hitting the ATP’s fastest official serve ever and third-fastest on record in tennis at 157.2 mph or 253 km/h during his first-round 2016 Davis Cup match. He currently has the second-most aces in the history of the ATP Tour, having served over 13,000.

Madison McKinley Isner height: How tall is John Isner’s wife?

John Isner’s wife Madison McKinley stands 5 feet 8 inches.

How much does Madison McKinley Isner weigh?

Madison McKinley’s weight is not known to the media, Moving on, Mckinley is 29 years old currently.