 <unk> Jeff <unk> , in examining data from 266 @,@ 000 games played between 1994 and 2001 , concluded that White scored 54 @.@ 1767 % plus 0 @.@ <unk> times White 's Elo rating advantage , treating White 's rating advantage as + 390 if it is better than + 390 , or − 460 if it is worse than − 460 . He found that White 's advantage is equivalent to 35 rating points , i.e. if White has a rating 35 points below Black 's , each player will have an expected score of 50 % . <unk> also found that White 's advantage is smaller ( 53 % ) in rapid games than in games at a slower ( " classical " ) time control . In the 462 games played at the 2009 World Blitz Chess Championship , White scored only 52 @.@ 16 % ( <unk> <unk> L 34 @.@ 63 ) . 
