After the Austrian defeated Lucas Miedler in straight sets, he faced Sandro Kopp in his 2nd match of the tournament. After Thiem lost the first set 5-7 and leveled the score of the match after winning the second 6-3, he became unbeatable for his opponents.

Thiem defeated Kopp 6-0 in the third set to win the second match of the group stage. In the third match, he faced David Pichler. World no. 3 in the ATP Ranking, continued in the same style as he finished the previous match. He didn't lose a single game in the match; winning it 6-0, 6-0 to top Group A of the Austrian Pro Series.

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