The Argentina Open finalist recorded his 13th victory in 23 tour-level matches this season after one hour and 41 minutes, saving nine of 13 break points to end Paire’s hopes of a debut win in Munich. Schwartzman levels his FedEx ATP Head2Head series at 1-1 against Paire, having lost their only previous meeting at the Internazionali BNL d’Italia last year.
Aiming to reach his fourth tour-level quarter-final of 2019, the 26-year-old will face Houston champion Cristian Garin for a place in the last eight. The Chilean fired eight aces and broke serve on four occasions to defeat Yannick Maden of Germany 6-4, 6-2 in 77 minutes. Schwartzman owns a 1-0 FedEx ATP Head2Head record against Garin.
Three-time champion Philipp Kohlschreiber opened his campaign with a 6-2, 7-5 win over Andreas Seppi. The World No. 41, who improved to 34-11 in Munich after 80 minutes, will meet second seed Karen Khachanov in the second round.
Denis Kudla produced a fine serving performance to beat fifth seed Kyle Edmund 6-4, 6-3. The 26-year-old American won 92 per cent of first-serve points (22/24) and did not face a break point en route to victory after 67 minutes. Kudla entered the tournament on a five-match losing streak, dating back to the Dubai Duty Free Tennis Championships in February.
In-form Guido Pella dropped just three games to defeat Mischa Zverev 6-2, 6-1. The Brasil Open champion saved all three break points he faced throughout the 53-minute contest and moved through to a second-round encounter against Taro Daniel of Japan.
Cordoba Open titlist Juan Ignacio Londero defeated German wild card Maximilian Marterer 6-2, 4-6, 6-2 to join countrymen Schwartzman and Pella in the second round. The Argentine will meet two-time defending champion Alexander Zverev for a quarter-final spot.
Thiago Monteiro needed just 51 minutes to book a second-round clash against eighth seed Marton Fucsovics. The Brazilian won 80 per cent of service points (28/35) to defeat 2014 semi-finalist Jan-Lennard Struff 6-1, 6-1.