Colorado Rockies baseball: pennant drive or flash in the pan?

This afternoon the Colorado Rockies completed a four-game sweep of the Cincinnati Reds by stealing the final game - literally.

The winning run was scored on a steal of home plate by infielder Chris Nelson in the eighth inning to give the Rockies a 6-5 come-from-behind win.

Was this thriller, the Rockies seventh straight win, the start of a serious pennant drive or is it just a flash in the pan?