player
ratings Dr.
Dave's answers to frequently-asked questions (FAQs),
mostly from the BD
CCB and AZB
discussion forums
maintained for the book: The
Illustrated Principles of Pool and Billiards
and the monthly Billiards
Digest "Illustrated Principles"
instructional articles
Is there a drill that can be used to measure my level of play?
I have a 9-ball rating drill that can be used to rate a player and track improvement over time. The purpose of this drill is to evaluate your offensive skills (shot making, position play, handling of clusters and problem balls, and breaking) and assign a 1-10 (or A-D) rating to those skills. Note - safety play, a very important part of the game, is not addressed in this drill.
More rating drills can be found under drills here.
from
Eric.:
Joe Tucker has a thing he uses that proves to be pretty accurate.
It goes like this:
Rack up some 10 ball. Break from anywhere. After the break, take ball in hand and run out, in rotation (1, 2, 3, etc...) All balls made on the break count. Any balls made on a scratch are spotted. Once you miss, the rack is over. You should shoot 10 racks and count the total balls made for each rack. After 10 racks, take your total and compare it to this chart:
30-35
D+
36-40 C
41-45 C+
46-50 B
51-55 B+
56-60 A
61-65 A+
66-70
A++
71-up Pro
I'm not sure if it matters what size table. I like this
rating system because it takes a lot into account as far as player ability i.e.
shotmaking, position play, cluster breaking, break skill. It makes no difference
if you play 10 ball or not, the results are very close to reality.
How does Accu-Stats' player rating system work?
The Tournament Performance Average (TPA) can be used to measure a player's performance in a match or tournament. It is a single number (like a batting average) based on the following formula:
TPA = (# of Balls Made) / (# of Balls Made + # of Errors)
Errors are any of the following:
For example, if you make 100 balls in a match and commit 25 errors, your TPA would be 0.8 or 80% (100/125). A perfect score, with no errors, would be 1.0 or 100%.
How do you interpret the letter ratings (A-D) sometimes used to refer to player ability?
from Tom_In_Cincy:
9-Ball Tournament race to 7
(paraphrased from 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 rack in a typical race to 7
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
Mr. Cambell continues this article with a handicap chart for the 4 levels of each type of player. The chart would look like this;
Lowest handicap is D4, then D3, then D2 and so on until the highest would be OPEN 1
Pool Quotient (PQ) progressive-drill ability test
Is there a set of drills I can use to get a good measure of my overall ability?
The
Pool Quotient (PQ) ability test, based on progressive practice drills is a good
tool to measure ability and track improvement over time. Here it is: PQ
Ability Test.