Tennis Australian Open 1979 at Melbourne (aus) Men: Singles December 26-January 3: Quarterfinals: Arthur Ashe (usa) * - Peter Feigl (aut) 4-6 6-2 4-6 6-2 9-7 John Marks (aus) * - John Alexander (aus) 6-4 6-4 7-5 Hank Pfister (usa) * - Paul Kronk (aus) 7-5 6-3 6-3 Guillermo Vilas (arg) * - Tony Roche (aus) 3-6 6-1 3-6 6-3 6-2 Semifinals: John Marks (aus) * - Arthur Ashe (usa) 6-4 6-2 2-6 1-6 9-7 Guillermo Vilas (arg) * - Hank Pfister (usa) 6-2 6-0 6-4 Final: Guillermo Vilas (arg) * - John Marks (aus) 6-4 6-4 3-6 6-3