chess | Round-robin tournament | Chess | tournament | World Chess Championship | Single-elimination tournament | Chess Records | United States Chess Federation | Masters Tournament | Football at the 2012 Summer Olympics – Men's tournament | Chess Olympiad | Tournament of Champions | 2010 NCAA Men's Division I Basketball Tournament | U.S. Chess Championship | round-robin tournament | Candidates Tournament | Tournament | Internet Chess Club | Chess (musical) | 2012 FIBA World Olympic Qualifying Tournament for Men | NCAA Basketball Tournament Most Outstanding Player | American Chess Congress | 2006 NCAA Men's Division I Basketball Tournament | Tournament of Champions (squash) | poker tournament | Poker Superstars Invitational Tournament | NAIA Basketball Tournament Most Valuable Player | men's tournament | Men's Basketball Tournament | Maui Invitational Tournament |
He was a winner at Madrid in 1961 (with Borislav Milic) and achieved outright or shared second place at Kapfenberg 1955, Varna 1957, Utrecht 1961 and Beverwijk 1962.
Tournaments he has won or shared first include the 1969 Swedish Chess Championship, Göteborg 1971, Dortmund 1973, Camagüez 1974, Cienfuegos 1975, Belgrade 1977, Buenos Aires 1978, Hastings 1978–79, Phillips & Drew 1980, Johannesburg 1981, Phillips & Drew 1982, Turin 1982, Wijk aan Zee 1983, Reggio Emilia 1985, Rome 1985, and Rome 1986.