[['year', 'date final', 'venue', 'prize money', 'champion', 'runner - up', 'score in final', 'commercial name'], ['1989', 'apr 26 - 30', 'atlanta', '500000', 'andre agassi', 'michael chang', '6 - 3 , 6 - 2', 'at&t challenge of champions'], ['1988', 'apr 28 - may 1', 'atlanta', '500000', 'ivan lendl', 'stefan edberg', '2 - 6 , 6 - 1 , 6 - 3', 'at&t challenge of champions'], ['1987', 'oct 6 - 11', 'atlanta', '500000', 'john mcenroe', 'paul annacone', '6 - 4 , 7 - 5', 'at&t challenge of champions'], ['1986', 'nov 25 - 30', 'atlanta', '500000', 'boris becker', 'john mcenroe', '3 - 6 , 6 - 3 , 7 - 5', 'at&t challenge of champions'], ['1986', 'jan 6 - 12', 'atlanta', '500000', 'ivan lendl', 'jimmy connors', '6 - 2 , 6 - 3', 'at&t challenge of champions'], ['1985', 'jan 1 - 6', 'las vegas', '1290000', 'john mcenroe', 'guillermo vilas', '7 - 5 , 6 - 0', 'at&t challenge of champions'], ['1984', 'jan 3 - 8', 'rosemont', '250000', 'jimmy connors', 'andrés gómez', '6 - 3 , 6 - 2 , 6 - 1', 'lite challenge of champions'], ['1983', 'jan 4 - 9', 'rosemont', '250000', 'ivan lendl', 'jimmy connors', '4 - 6 , 6 - 4 , 7 - 5 , 6 - 4', 'lite challenge of champions'], ['1982', 'jan 6 - 11', 'rosemont', '310000', 'jimmy connors', 'john mcenroe', '6 - 7 , 7 - 5 , 6 - 7 , 7 - 5 , 6 - 4', 'michelob light challenge of champions'], ['1981', 'jan 7 - 12', 'rosemont', '310000', 'john mcenroe', 'jimmy connors', '6 - 2 , 6 - 4 , 6 - 1', 'challenge of champions']]
there are 2 Year in which the Challenge Of Champion had a Commercial Name Of Lite Challenge of Champion
there are 2 [ENT] in which the [ENT] had a [ENT] [ENT] of [ENT]