John Isner is into the semi-finals in Dallas where he will face J.J. Wolf.
The 6ft 10 American booked his spot in the Dallas Open last eight after beating his German opponent.
The home favourite began his campaign with a straight sets victory.
John Isner began his US Open campaign with victory.
Jenson Brooksby set up a semi-final with compatriot Frances Tiafoe in Atlanta after knocking out six-time champion John Isner.
The American is through to the quaterfinals after beating the German in straight sets.
The American got by his Serbian opponent in straight sets to reach the second round in Madrid.
Like a steadily rising tide, fresh generations are taking the reins of US tennis
Madison Keys and John Isner were left frustrated after exiting Miami Open.
The American was pushed to his limits in a three-set win over the Spaniard to reach the second round.
Isner already holds the record for longest match ever played. Now he holds the record with Opelka for the longest tiebreak.
The 6ft 10 American is through to the next round after a tough three-set win that included a long rain delay.
The 6ft 10 American got revenge on his American opponent for the loss he suffered last week in Los Cabos.
Brandon Nakashima stunned John Isner to reach the final in Los Cabos.
John Isner will face Brandon Nakashima in the Los Cabos semi-finals.
The American was pushed to the limits by his Russian opponent beating him in three tight sets.
The American is in Los Cabos, Mexico looking to start the hardcourt season on the right foot.
The American was dominant behind his first serve where he won 53 out of 58 points played.
The American has got off to a winning start at Roland Garros.
John Isner is into the Madrid quarter-finals after a last set tiebreak win over Andrey Rublev.