Below are the park adjustments for runs and home runs for each of Japan’s Central and Pacific league teams since 2011, when Nippon Professional Baseball introduced a standard ball for the first time.
The big change this year was in Fukuoka, where the SoftBank Hawks, unable to replicate the team’s home run figures of 10-15 years ago, added field seats in left and right fields in front of the towering outfield walls at Yafuoku Dome.
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