In the past 11 games at Coors Field, either the home team or the visitors have scored at least double-digit runs eight times. This has caused the attention that many are giving Coors Field. But the realty is that runs per game have been creeping up for some time in Denver. When the humidor was installed, it dropped the scoring difference between a neutral park and Coors Field from 25 percent more offensive than the norm to seven. The humidor worked, at least for a while.
Over the past two seasons, Baseball-Reference.com entails Coors Field’s run environment to be 20 percent higher than average, brining baseball in Denver back to near pre-humidor levels.