According to the Elias Sports Bureau, only three other teams have scored seven or more runs immediately following a perfect game.
The 1904 Philadelphia Athletics defeated Washington, 16-6, after Boston's Cy Young pitched a perfect game against them. David Wells threw a perfect game against the Twin while pitching for the Yankees in 1998. The next day, the Twins defeated Detroit, 8-3. And finally, the 1880 Cleveland Blues of the National League defeated the Worcester (Mass.) Ruby Legs, 7-1. Cleveland was the only team to do so against the same opponent; in fact, it did it against the same pitcher, Lee Richmond.