Almagro broke Hernych four times and saved two of the three break points he faced.
The clay-court tournament had only one match scheduled Sunday.
Earlier, defending champion Fernando Gonzalez pulled out because of an ankle injury. The Chilean lost to top-ranked Rafael Nadal in the semifinals of the Rome Masters on Saturday and flew to Munich on Sunday to announce his withdrawal.
East Notes: Rough start for Crew
Warzycha not panicking over slow start
Serena Williams withdraws from Family Circle Cup
