Chess

Chess Ratings

              HISTOGRAM OF USCF RATINGS 

Min = 45 (lowest rated), Max = 2789 (highest rated), 
N = 51,265 (number of rated players), 
mu = 1391 (average rating), sigma = 449

     <  100 :     4      0.000 0.000
 100 -  199 :    26      0.001 0.001
 200 -  299 :    72      0.001 0.002
 300 -  399 :   188      0.004 0.006
 400 -  499 :   457      0.009 0.015
 500 -  599 :   867      0.017 0.031
 600 -  699 :  1514      0.030 0.061
 700 -  799 :  2161      0.042 0.103
 800 -  899 :  2988      0.058 0.161
 900 -  999 :  3119      0.061 0.222      
1000 - 1099 :  3218      0.063 0.285      ******Class E
1100 - 1199 :  3451      0.067 0.352      ******Class E
1200 - 1299 :  3564      0.070 0.422      ******Class D
1300 - 1399 :  3566      0.070 0.491      ******Class D
1400 - 1499 :  4060      0.079 0.571      ******Class C
1500 - 1599 :  3975      0.078 0.648      ******Class C
1600 - 1699 :  3976      0.078 0.726      ******Class B
1700 - 1799 :  3577      0.070 0.796      ******Class B
1800 - 1899 :  3088      0.060 0.856      ******Class A
1900 - 1999 :  2529      0.049 0.905      ******Class A
2000 - 2099 :  1978      0.039 0.944      ******Expert
2100 - 2199 :  1315      0.026 0.969      ******Expert
2200 - 2299 :   862      0.017 0.986      ******Master
2300 - 2399 :   327      0.006 0.993      ******Master
2400 - 2499 :   194      0.004 0.996      ******Senior Master
2500 - 2599 :   105      0.002 0.998      ******Senior Master
2600 - 2699 :    77      0.002 1.000
2700 - 2799 :     7      0.000 1.000
2800 - 2899 :     0      0.000 1.000
     > 2900 :     0      0.000 1.000