Five pitchers combined on a four-hitter for Don Mattingly’s undermanned, gritty and first-place Miami Marlins, who beat the Baltimore Orioles 2-1 Wednesday night for a doubleheader sweep.

Brian Anderson homered in opener, and Miami won 1-0 despite getting only two hits.

The sweep kept the Marlins atop the NL East and earned Mattingly his 281st win as Miami’s manager, tying Jack McKeon’s club record.

The Marlins won their third straight game since emerging from a coronavirus-prompted layoff that left them with a roster filled with callups, free agents and rookies. Miami has allowed a total of one run and 10 hits in those three games at Camden Yards.

In the nightcap. Jon Berti hit an RBI double off Asher Wojciechowski (0-2) in the first inning and scored on a fly ball by Jesús Aguilar. That proved to be enough. Josh A. Smith started, Brian Moran (1-0) struck out three over one inning and Stephen Tarpley got four outs for his first save.

In the opener, Anderson produced the game’s lone run with an opposite-field drive to right off Alex Cobb (1-1).

Miami starter Elieser Hernandez gave up a one-out double to Chance Sisco in the fifth and Pedro Severino followed with a single before Nick Vincent (1-0) got Hanser Alberto to hit into a double play, ending Baltmore’s only threat.