World number 12 and the 2nd seed here in Hamburg Diego Schwartzman is back on the winning way for the first time since that great Roland Garros run where he reached the quarter-final, beating the German qualifier Daniel Masur 6-2 6-2 in an hour and 20 minutes to reach the last eight for the fourth time this season. Diego lost 18 points in eight service games, fending off all six break points he faced to keep the pressure on his rival who dropped almost 50% of the points behind his initial shot, playing against 11 break points and suffering four breaks, two in each set.
Schwartzman opened the match with a break when Masur sent a forehand long and he saved three break points in game two to confirm the break and move 2-0 ahead. Masur lost serve again in game five after a poor drop shot and the Argentinian sealed the opening set with a service winner in game eight after 30 minutes.
Daniel saved two break points at the start of the second set to avoid an even bigger disaster but Schwartzman broke him in the fifth game when the German's forehand landed long. The result could have been leveled again in the following game, with three break points up for grabs for Masur, only to be denied by three winners from Diego who made an important hold to move 4-2 ahead.
An amazing forehand down the line winner delivered another break for Diego in game seven and a service winner in the next game pushed him over the finish line, advancing into his second ATP 500 quarter-final after Rio de Janeiro in February where he won the title. Second round results: