Balshan represented Israel six times in World Student Team Chess Championships (1968–1972, 1974) winning the individual gold medal on fourth board, scoring 10/11, at Ybbs 1968. He also represented Israel in the 7th European Team Chess Championship at Skara 1980.
In 1967, he played in the World Junior Chess Championship in Jerusalem, as Julio Kaplan won. He played for Israel in the 20th Chess Olympiad at Skopje 1972, and won the individual silver medal at first reserve board (+10 –0 =6) there. In 1978/79, he took 15th in Hastings (Ulf Andersson won). He tied for 1st-2nd with Jacob Murey at Ramat Hasharon 1979, and shared 17th at Gausdal 1982 (Maxim Dlugy won).
