Another stat...even tougher to find, if it can be found at all:
Most number of pitches to a batter in single Plate Appearance.
https://video.search.yahoo.com/video/play;_ylt=A2KIo9X2169VITIAEW37w8QF;_ylu=X3oDMTByZWc0dGJtBHNlYwNzcgRzbGsDdmlkBHZ0aWQDBGdwb3MDMQ--?p=mcguire+Vs+Johnson+kingdom+Home+Run&vid=ad0e549e783727287b97f6f3210ed90c&turl=http%3A%2F%2Fts3.mm.bing.net%2Fth%3Fid%3DWN.PhEomtiGIdoJAfgD5%252bHHVw%26pid%3D15.1%26h%3D168%26w%3D300%26c%3D7%26rs%3D1&rurl=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DstUolWxG3wo&tit=OAK%40SEA%3A+McGwire%26%2339%3Bs+homer+one+of+Kingdome%26%2339%3Bs+farthest&c=0&h=168&w=300&l=62&sigr=11bl2e15b&sigt=11rqb0r9h&sigi=12mb1o7aj&age=1371748890&fr2=p%3As%2Cv%3Av&fr=yset_ff_syc_oracle&tt=b