... What is the deal when we know some but not all match scores? ...
How about using the results of all the DCC 9-Ball matches streamed by Accu-Stats and reported in threads like these:
2018 -- http://forums.azbilliards.com/showthread.php?t=468558
2017 -- http://forums.azbilliards.com/showthread.php?t=445680
2016 -- http://forums.azbilliards.com/showthread.php?t=417901