competition | International Tchaikovsky Competition | Queen Elisabeth Music Competition | Sydney International Piano Competition | Leeds International Pianoforte Competition | FIRST Robotics Competition | William Lowell Putnam Mathematical Competition | Long-Thibaud-Crespin Competition | International Chopin Piano Competition | Gina Bachauer International Piano Competition | Architectural design competition | Robert Schumann International Competition for Pianists and Singers | Lionel Tertis International Viola Competition | Competition | Australian Competition and Consumer Commission | International Wine and Spirit Competition | Geneva International Music Competition | Australian Football League pre-season competition | Tough Guy Competition | Superclub competition | Mandelbrot Competition | International Besançon Competition for Young Conductors | International Aerial Robotics Competition | Competition law | architectural design competition | 1994 Superclub competition | 1993 Superclub competition | Yale Series of Younger Poets Competition | USA International Ballet Competition | Philip C. Jessup International Law Moot Court Competition |
Hegedűs has participated in 20 international piano competitions and has won several prizes among them first prizes in Monza and at the Rachmaninov Competition in Morcone, both in Italy.
He sat as a jury member in more than 40 international competitions including the Rachmaninov Competition (which he founded), the International Tchaikovsky Competition in Moscow, the Chopin Competition in Warsaw, the Bartók-Liszt Competition in Budapest, and international competitions in Montreal, Tokyo, Brussels and others.