Dane Holger Rune, the second seed, advanced to the second round of the Hamburg Open with a victory over Hungarian Fabian Marozsan 6-4, 6-4 at the Rothenbaum Tennis Center.
Rune, who is ranked No. 17, will face Argentinian qualifier Marco Trungelliti in the next round.
Hamburg ATP 500, other first-round results (Rothenbaum Tennis Center, clay, EUR 1.891.995, most recent results first):
- Alexander Zverev vs. Jesper De Jong
- Facundo Diaz Acosta vs. Hugo Gaston
- Sebastian Baez (3) beat Dominik Koepfer: 6-2, 6-3
- Marco Trungelliti beat Sebastian Ofner: 6-1, 4-3 ret.
- Zhizhen Zhang (8) beat Thiago Seyboth Wild: 7-6 (6), 6-0
- Dusan Lajovic beat Felipe Meligeni Alves (Q): 6-2, 6-7 (5), 6-3
- Arthur Fils (5) beat Jaume Munar: 5-7, 6-3, 6-1
- Luciano Darderi (7) beat Nick Hardt (LL): 6-1, 2-6, 6-0
- Pedro Martinez beat Matteo Arnaldi (6): 7-6 (4), 6-1
- Francisco Cerundolo (4) beat Francisco Comesana (LL): 7-5, 6-4
- Alexander Shevchenko beat Rudolf Molleker (WC): 6-4, 4-6, 6-4
- Laslo Djere beat Zizou Bergs: 6-3, 7-6 (4)
- Maximilian Marterer (WC) beat SoonWoo Kwon: 6-4, 6-7 (6), 7-5
- Ugo Blanchet (Q) beat Alexei Popyrin: 4-6, 7-6 (6), 6-2
- Flavio Cobolli beat Daniel Altmaier: 6-4, 6-7 (6), 6-3
