The last time the Reds got off to such a good start, they ended up winning the World Series. Chris Heisey drove in three runs, and the Reds used a patient approach at the plate to beat the Houston Astros 8-2 on Tuesday night for their best start in 21 years. At 4-0, they're the only unbeaten team left in the National League. They hadn't won their first four since 1990, when they opened 9-0 and went on to sweep Oakland for their last World Series championship. "You get off to a good start and try to keep the momentum going and keep winning," Heisey said. "I'll say we're probably going to lose a game before long, but if we go 162-0, we'll be making some serious headlines." The defending NL Central champs showed a lot of confidence in their first four, playing up to a title that's had a carry-over effect. Read more: http://sports.espn.go.com/mlb/recap?gameId=310405117