In which two years did John Isner reach the quarterfinals at the US Open?
2011 and 2018
2009 and 2014
2013 and 2016
2010 and 2017
Answer
John Isner reached the quarterfinals at the US Open in 2011 and 2018. His performance in 2018 helped qualify him for an ATP Finals appearance later that year.
Acing the John Isner Quiz: Test Your Knowledge on the Towering American Tennis Star!