[['year', 'competition', 'venue', 'position', 'event'], ['1988', 'olympic games', 'seoul , south korea', '5th', '4x100 m relay'], ['1989', 'world indoor championships', 'budapest , hungary', '4th', '200 m'], ['1989', 'european indoor championships', 'the hague , netherlands', '5th', '200 m'], ['1990', 'european indoor championships', 'glasgow , scotland', '1st', '200 m'], ['1990', 'european championships', 'split , yugoslavia', '8th', '200 m'], ['1990', 'european championships', 'split , yugoslavia', '3rd', '4x100 m relay'], ['1991', 'world championships', 'tokyo , japan', '5th', '4x100 m relay'], ['1991', 'mediterranean games', 'athens , greece', '3rd', '200 m'], ['1994', 'european championships', 'helsinki , finland', '3rd', '4x100 m relay'], ['1995', 'world championships', 'gothenburg , sweden', '3rd', '4x100 m relay'], ['1997', 'mediterranean games', 'bari , italy', '1st', '4x100 m relay']]
Sandro Floris participated in the 4x100 M Relay most often with 6 appearance
[ENT] participated in the [ENT] most often with 6 appearance