Player name: Blackstone, JohnSee rating chart
    Most recent federation:   United States
    Date of birth: 27 July 1944
    Most recent ID: 2002850
    Sex: man
      list        pos  Player_ID  Name                                 Title Fed  Rtng   +/-  Gms   Birthday   Sex  Flag 
    Oct 2001    10568=  2002850  Blackstone, John                            USA  2227     0    0  1944.07.27            
    Jul 2001    10664=  2002850  Blackstone, John                            USA  2227     0    0  1944.07.27            
    Apr 2001    10801=  2002850  Blackstone, John                            USA  2227     0    0  1944.07.27            
    Jan 2001    10623=  2002850  Blackstone, John                            USA  2227   -28    4                        
    Oct 2000        x   2002850  Blackstone, John                            USA  2255     0    0  1944.07.27         i   
    Jul 2000        x   2002850  Blackstone, John                            USA  2255    -2    1  1944.07.27         i   
    Jan 2000        x   2002850  Blackstone, John                            USA  2257     0    0                     i   
    Jul 1999        x   2002850  Blackstone, John                            USA  2257     0    0  1944.07.27         i   
    Jan 1999        x   2002850  Blackstone, John                            USA  2257    +7    3  1944.07.27         i   
    Jul 1998        x   2002850  Blackstone, John                            USA  2250   -10    3  1944.07.27         i   
    Jan 1998        x   2002850  Blackstone, John                            USA  2260     0       1944.07.27         i   
    Jul 1997        x   2002850  Blackstone, John                            USA  2260     0       1944.07.27         i   
    Jan 1997        x   2002850  Blackstone, John                            USA  2260     0    0  1944.07.27         i   
    Jul 1996        x   2002850  Blackstone, John                            USA  2260     0    0  1944.07.27         i   
    Jan 1996        x   2002850  Blackstone, John                            USA  2260     0    0  1944.07.27         i   
    Jul 1995        x   2002850  Blackstone, John                            USA  2260     0    0  1944.07.27         i   
    Jan 1995        x   2002850  Blackstone, John                            USA  2260     0    0  1944.07.27         i   
    Jul 1994        x   2002850  Blackstone, John                            USA  2260     0    0  1944.07.27         i   
    Jan 1994        x   2002850  Blackstone, John                            USA  2260     0    0  1944.07.27         i   
    Jul 1993        x   2002850  Blackstone, John                            USA  2260     0    0  1944.07.27         i   
    Jan 1993        x   2002850  Blackstone, John                            USA  2260     0    0  1944.07.27         i   
    Jul 1992        x   2002850  Blackstone, John                            USA  2260     0    0  1944.07.27         i   
    Jan 1992     6290=  2002850  Blackstone, John                            USA  2260     0    0  1944.07.27            
    Jul 1991     6019=  2002850  Blackstone, John                            USA  2260     0    0  1944.07.27            
    Jan 1991     5746=  2002850  Blackstone, John                            USA  2260     0    0  1944.07.27            
    Jul 1990     5434=  2002850  Blackstone, John                            USA  2260     0    0  1944.07.27            
    Jan 1990     5198=    69396  Blackstone, John                            USA  2260     0    0  1944.07.27            
    Jul 1989     4182=           Blackstone, John                            USA  2260     0    0                        
    Jan 1989     4053=           Blackstone, John                            USA  2260     0    0                        
    Jul 1988     3760=           Blackstone, John                            USA  2260     0    0                        
    Jan 1988     3577=           Blackstone, John                            USA  2260     0    0                        
    Jul 1987     3368=           Blackstone, John                            USA  2260     0    0                        
    Jan 1987     3061=           Blackstone, John                            USA  2260     0    0                        
    Jul 1986     2893=           Blackstone, John                            USA  2260   +10   11                        
    Jan 1986     3008=           Blackstone, John                            USA  2250     0    0                        
    Jul 1985     2792=           Blackstone, John                            USA  2250     0    0                        
    Jan 1985     2671=           Blackstone, John                            USA  2250     0                             
    Jul 1984     2567=           Blackstone, John                            USA  2250     0                             
    Jan 1984     2419=           Blackstone, John                            USA  2250     0                             
    Jul 1983     2399=           Blackstone, John                            USA  2250   -15                             
    Jan 1983     2119=           Blackstone, John                            USA  2265   +20                             
    Jul 1982     2382=           Blackstone, John                            USA  2245    +5                             
    Jan 1982     2411=           Blackstone, John                            USA  2240     0                             
    Jul 1981     2203=           Blackstone, John                            USA  2240     0                             
    Jan 1981     2164=           Blackstone, John                            USA  2240     0                             
    Jan 1980     1942=           Blackstone, John                            USA  2240   -90                             
    Jan 1979                                   --- no data available ---
    Jul 1978        x            Blackstone, John                            USA  2330     0                             
    Jan 1978      903=           Blackstone, John                            USA  2330