[['year', 'championship', '54 holes', 'winning score', 'margin', 'runner (s) - up'], ['1954', 'the open championship', 'tied for lead', '9 (72 + 71 + 69 + 71 = 283)', '1 stroke', 'bobby locke , dai rees , syd scott'], ['1955', 'the open championship (2)', '1 shot lead', '7 (71 + 68 + 70 + 72 = 281)', '2 strokes', 'john fallon'], ['1956', 'the open championship (3)', '3 shot lead', '2 (70 + 70 + 72 + 74 = 286)', '3 strokes', 'flory van donck'], ['1958', 'the open championship (4)', '2 shot lead', '6 (66 + 72 + 67 + 73 = 278)', 'playoff 1', 'dave thomas'], ['1965', 'the open championship (5)', '1 shot lead', '7 (74 + 68 + 72 + 71 = 285)', '2 strokes', "christy o'connor snr , brian huggett"]]
Peter Thomson 's largest major Championship victory was in 1956 , when he led Runner Up Flory Van Donck by 3 Stroke
[ENT] 's largest major [ENT] victory was in [ENT] , when he led [ENT] [ENT] by 3 [ENT]