I made large changes to the wall height and distances for a park, but it didn seem to affect the number of homeruns. Why not?
It’s the statistical park factors that control the rates of singles, doubles, triples and homers for the park. The wall heights and distances are used by the game to determine where in the park these events occur. If you don’t change the factors, but you do move the left field wall in and the right field wall out, you should see more homers to left and fewer to right. This is the only way we know of to maintain statistical accuracy. There are a lot of things that affect offense in a park — the physical configuration, prevailing winds, altitude, temperature, quality of the hitting background, and so on. These things interact to a degree that makes it difficult, if not impossible, how much to increase homers if you bring in a fence by ten feet and cut the height in half. So we continue to rely on the statistical factors to establish the offensive parameters for the park.
