As of this afternoon there were only 12 players who were in the top 50 in all 4 "positive" gammon games. Here we are:

Name/Avg. Rating/Avg. Rank
arpa/2072/6.50
alanback/2049/5.00
frolind/2018/13.25
jelly/2015/18.75
qusar/2012/12.50
Pedro Martínez/1995/14.75
mrbugs001/1990/18.00
Hrqls/1987/20.00
Brian1971/1962/27.75
cindsman/1961/29.50
Zach/1936/37.50