 He won the Ontario Open Championship in 1959 and 1963.Vranesic placed 2nd, with 8/11, in the 1961 Canadian Chess Championship, at Brockville, Ontario 1961 (Lionel Joyner won); he repeated this placing in the 1963 Canadian Chess Championship, Winnipeg, Manitoba 1963, with 11.5/15 (Daniel Yanofsky won).Vranesic placed 2nd, to GM Pal Benko, at the 1964 Canadian Open Chess Championship.