6/9, along with Darga, ahead of Spassky and Keres. He won at Palma de Mallorca 1967 with 13/17, ahead of Smyslov, Botvinnik, Portisch, Gligorić, and Borislav Ivkov. He was awarded the first Chess Oscar in 1967. Somewhat unusually for the late 1960s, Larsen—as one of the world's top players—often entered large Open tournaments run on the Swiss system, and had plenty of success. He won the Canadian Open Chess Championships at Toronto 1968 and St. John's 1970. He also won the U.S. Open Chess Championship of 1968 at Aspen, Colorado, and that at Boston in 1970. Larsen won at Monte Carlo 1968 with 9½/13, ahead of Botvinnik, Smyslov, Vlastimil Hort, Robert Byrne, Portisch, and Pal Benko. This completed a string of five consecutive clear wins of major tournaments, a feat that had not previously been accomplished in modern chess. Larsen shared 2nd–3rd places at Palma de Mallorca 1968 with 13/17, along with Spassky; Viktor Korchnoi won. In a playoff match for third place in the Candidates Tournament, he defeated Tal at Eersel 1969 by 5½–2½ in a rematch of their 1965 encounter. He won at Palma de Mallorca 1969 with 12/17, ahead of Petrosian, Korchnoi, Hort, and Spassky. There was a further victory at Buesum 1969 with 11/15, ahead of Polugaevsky. At San Juan 1969, he scored 9/15 for a shared 6th–7th place (Spassky won). He defeated International Master Heikki Westerinen by 6–2 at Helsinki in 1969 in a match in which every game was decisive. Larsen won at Lugano 1970 with 9½/14, ahead of Olafsson. In the USSR vs Rest of the World match at Belgrade 1970, he played first board for the World side, ahead of Fischer, and scored 2½/4 against Spassky and Leonid Stein. At Leiden 1970, he shared 3rd–4th places with 5½/12, (Spassky won). He defeated Lubomir Kavalek in a 1970 exhibition match at Solingen by 6–2. He won at Vinkovci 1970 with 10½/15, ahead of David Bronstein, Hort, and Gligorić. At Palma de Mallorca 1970, he shared 6th–7th places with 9/15 (Panno and Ljubomir Ljubojević were joint winners). Larsen shared 8th–9th places at San Antonio 1972 on 8½/15 (Portisch, Petrosian, and Karpov triumphed). He won at Teesside 1972 with 11/15, ahead of Ljubojević and Portisch. At Las Palmas 1972, he shared 2nd–3rd places on 11/15 (Portisch won). Larsen won at Hastings 1972–73 on 11½/15, ahead of Wolfgang Uhlmann. At Bauang 1973, he scored 6/9 for