Kumstat beat Pucinelli de Almeida 6-4, 5-7, 6-2 in Hamburg, sealing the result with a dominant third set. He broke four times and saved six of eight break points faced.
Kumstat edged the opener with the only break, in game 9. Pucinelli de Almeida hit back in the second, breaking in game 10 and game 12 after losing his serve in game 5. The decider was one-way traffic as Kumstat broke in game 1 and game 5 to take it 6-2.
Kumstat won 81% of first-serve points and 12 of 14 service games overall; Pucinelli de Almeida had more aces, 4-3, but lost all seven points behind his second serve in the final set.