El quinto sembrado Basilashvili, que ganó en Qatar en marzo, comenzó bien y se reanudó después de una interrupción de lluvia de 30 minutos para ganar su quinto título ATP.
Basilashvili lost just three service points in the 35-minute first set, and he saved the only break point he faced in the sixth game. Both players served well in the tiebreaker until Struff struck a backhand into the net.
Basilashvili won two matches on Saturday to reach the final. His quarterfinal with Norbert Gombos was suspended Friday due to rain. The Georgian player completed a 6-4, 6-4 win before sweeping past Casper Ruud 6-1, 6-2 in the semifinals.
Basilashvili did not drop a set in five matches in Munich and now has a 5-2 career record in finals.
Though he lost, the 44th-ranked Struff shed his record of being the highest-ranked men’s player yet to have played an ATP singles final.