Chess/WorldChampions

 The first is the winner of the match:

 1866 Steinitz-Anderseen  
 18xx Steinitz-Zukertort
 18xx Steinitz-Chigorin
 18xx Steinitz-Chigorin
 1894 Lasker-Steinitz   
 189x Lasker-Tarrasch
 19xx Lasker-Schelecter  
 1921 Capablanca-Lasker
 1927 Alekhine-Capablanca
 1931?Alekhine-Bogoluybov
 1933?Alekhine-Bogoluybov
 1935 Euwe-Alekhine
 1937 Alekhine-Euwe
 1948 Botvinnik (win tournament)
 1951 Botvinnik-Bronstein
 1954 Botvinnik-Smyslov
 1957 Smyslov-Botvinnik
 1958 Botvinnik-Smyslov
 1960 Tal-Botvinnik
 1961 Botvinnik-Tal
 1963 Petrosian-Botvinnik
 1966 Petrosian-Spassky
 1969 Spassky-Petrosian
 1972 Fischer-Spassky
 1975 Karpov-Fischer (absence)
 1978 Karpov-Korchnoi
 1981 Karpov-Korchnoi
 1984 Karpov-Kasparov
 1985 Kasparov-Karpov
 1986 Kasparov-Karpov
 1987 Kasparov-Karpov
 1990 Kasparov-Karpov
 1993 Karpov-Timman (FIDE)
 1993 Kasparov-Short (PCA)
 1995 Kasparov-Anand (PCA)
 1998 Karpov-Anand (FIDE)
 1999 Khalifman-Akopian (FIDE)
 2000 Kramnik-Kasparov (Braingames)
 2000 Anand-Shirov (FIDE)

See also /FamousPlayers