Does this help???
I've on on some of my post posted this:In a 9-Ball Tournament race to 7
Dec.1997 "All About Pool" magazine, article by Bob Cambell
Handicap rankings
D- Player
-will not run a rack
-average run is about 3 balls
-with ball in hand, will get out from the 7, one out of 3 times
-rarely plays a successful safe
C-Player
-will probably run one rack, but usually not more than one
-avg. run is 3 to 5 balls
-with ball in hand, will get out from the 7, two out of 3 times
-mixed results when playing safe
-inning ends due to botched position, missed shot or attempting a safe.
B-Player
-Able to run 1 to 3 racks
-avg. run is 5-7 balls
-with ball in hand will get out form the 5, 2 out of 3 times
-most of the time a "B" player will play a "safety" which maybe hit easily 2 out of 3 times
-a typical inning will end with a missed shot, a fair safety, or a won game
A-Player
-will string 2 to 3 racks
-avg. ball run, 7-9
-with ball in hand, will be out from the 3 ball, 2 out of 3 times
-typical inning will end with a well executed safety or a win.
OPEN-Players
-average 8+ balls
-string racks together more than once in a match
-is a threat to run out from every ball, from every position, every inning
-typical inning will end in excellent safety or win