ATLANTA (AP) -- They jumped on each other at the pitcher's mound, then headed off to the clubhouse to pop some champagne.

It was all new to the Houston Astros, but they seemed to know what they were doing.

In their 43rd year of existence and eighth trip to the playoffs, the Astros finally won a postseason series. After such a long, arduous journey, the final step wasn't tough at all: a 12-3 rout of the Atlanta Braves on Monday night in the deciding Game 5 of their first-round NL playoff series.

Carlos Beltran hit two more homers and drove in five runs, while original Killer B's Craig Biggio and Jeff Bagwell chipped in during a five-run seventh inning that buried the Braves.

``It's nice to move on,'' Biggio said. ``Finally.''