The Potomac Nationals beat the Winston-Salem Warthogs 7-5 on Sunday thanks to five Winston-Salem errors.
The errors came in the first five innings.
Nationals starting pitcher Jeff Mandel earned the victory to improve to 5-4.
Mandel allowed three runs, two earned, on seven hits and recorded three strikeouts in six innings.
Josh Wilkie pitched the final inning and a third to earn his fourth save.
Francisco Plasencia went 3-for-5 with a double, two RBI and two runs scored for Potomac.
Dee Brown was 2-for-4 with an RBI and run scored.
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