This nifty site: http://www.classifiercalc.com/

will tell you where your score on a classifier ranks you.

Here are results for today’s match classifier (CM 03-05)

Shooter                  HF            %        Rank
John Allen            8.1531     82.18        A
Jeff Bailey            7.1429     72.00        B
Ken Nelson          6.8245     68.79        B
Adam Mann          6.7449    67.98        B
Jim Meade            6.7308    67.84        B
Charlie Wotykins  6.3719    64.22        B
Micah Evans         5.7937    58.40        C
Brian Nelson         5.3039    53.46       C
Bob Anderson       5.2004    52.42       C
Steve Thomas       5.1173    51.58       C
Daniel Evans         4.7856    48.23       C
Steve Brown         4.6139    46.50       C
Dan  Farwell         4.1806     42.14       C
Colby Seegmiller   4.0496     40.82      C
John Abbott           2.1622     21.79     D
Daniel Aleman       1.7781     25.60      D  (revolver)
Melodie Farwell     1.5763     15.88      D

Columns:

HF = Hit factor shot on the stage
%  = % your score is of the top submitted scores by all USPSA shooters

Rank:

GM = 95-100%
M = 85-94.9%
A = 75-84.9%
B = 60-74.9%
C = 40-59.9%
D = 39.9% or less