WASHINGTON — The Atlanta Braves came into Washington hopeful that they would be able to put a dent in the first-place Nationals' lead in the NL East. They will leave town after Wednesday night's game hoping the deficit isn't unmanageable. Stephen Strasburg struck out 10 and allowed one run in six innings for his 15th win in one of his final starts of the season as Washington beat Atlanta 4-1 on Tuesday night.