Before we get to Opening Day, let me introduce the new lineup of ballparks. We have used every park that was in service in 1969-1992 for more than just a season or two. The factors are based on an average of what the park displayed during those years. This time, instead of normalizing the parks by league, I normalized them by division, so that all the park factors in a division average out to 1.
Giant Stadium is a clone of Yankee Stadium. Its factors are only based on what it displayed after the renovation of the mid-1970's.
Gilmore Stadium is a clone of Dodger Stadium.
The only two teams that play in parks not used in 1969-1992 are Miami and Denver. Miami's Joe Robbie Stadium is based on 1993-2000 and Denver's Coors Field is based on 2002-20011 with the left and right hit factors toned down a bit from real life.
The Beavers park is Metropolitan Stadium which was the home of the Twins before they moved into the Metrodome. It is quite hitter friendly.