Kasparov Rose quickly from the FIDE earth rankings. Because of an oversight through the USSR Chess Federation, which believed that a grandmaster tournament in Banja Luka, Yugoslavia, was for juniors, he participated in that party in 1979 even though still unrated. He was a substitution for the Soviet defector https://financefeeds.com/chainlink-adds-nav-data-to-tokenization-partnership-with-sygnum-and-fidelity/