ATLANTA — Julio Teheran pitched around trouble through six scoreless innings and a tired Atlanta bullpen held on as the Braves beat the Washington Nationals 2-1 on Sunday. The Braves won two of three in the series and stretched their NL East lead over the second-place Nationals to 15 ½ games. Both teams exhausted their bullpens in the Nationals' 8-7 win in 15 innings on Saturday night.