DENVER -- The Nationals, who have not made the postseason since the franchise moved to Washington from Montreal, entered Thursday's game against the Rockies with the best record in the National League at 43-30. "It's all nice and good, but it's not October," manager Davey Johnson said. "I'll take it one day at a time. We haven't accomplished anything, but we're moving in the right direction." Following Thursday's finale in Colorado, the Nats head off to Atlanta to face the Braves in a key division showdown. Atlanta entered play Thursday in second place in the NL East. The club then heads home for six games -- three against the surging San Francisco Giants, and three against the Rockies -- before the All-Star break.