table: [['outcome', 'date', 'championship', 'surface', 'opponent', 'score'], ['runner - up', '25 march 1985', 'rotterdam , netherlands', 'carpet', 'miloslav mečíř', '1 - 6 , 2 - 6'], ['runner - up', '4 august 1986', 'hilversum , netherlands', 'clay', 'thomas muster', '1 - 6 , 3 - 6 , 3 - 6'], ['runner - up', '11 july 1988', 'gstaad , switzerland', 'clay', 'darren cahill', '3 - 6 , 4 - 6 , 6 - 7 (2 - 7)'], ['runner - up', '10 october 1988', 'basel , switzerland', 'hard (i)', 'stefan edberg', '5 - 7 , 3 - 6 , 6 - 3 , 2 - 6'], ['winner', '14 november 1988', 'wembley , england', 'carpet', 'jonas svensson', '6 - 7 (4 - 7) , 3 - 6 , 6 - 4 , 6 - 0 , 7 - 5'], ['winner', '21 november 1988', 'johannesburg , south africa', 'hard (i)', 'christo van rensburg', '6 - 7 , 6 - 4 , 6 - 1 , 7 - 6'], ['runner - up', '28 november 1988', 'brussels , belgium', 'carpet', 'henri leconte', '6 - 7 (3 - 7) , 6 - 7 (6 - 8) , 4 - 6'], ['winner', '13 february 1989', 'rotterdam , netherlands', 'carpet', 'anders järryd', '6 - 1 , 7 - 5'], ['runner - up', '27 february 1989', 'lyon , france', 'carpet', 'john mcenroe', '3 - 6 , 6 - 7 (3 - 7)'], ['winner', '12 november 1990', 'wembley , england', 'carpet', 'michael chang', '7 - 6 (9 - 7) , 6 - 3'], ['winner', '30 september 1991', 'basel , switzerland', 'hard (i)', 'john mcenroe', '7 - 6 (7 - 4) , 6 - 0 , 6 - 3'], ['runner - up', '11 november 1991', 'moscow , russia', 'carpet', 'andrei cherkasov', '6 - 7 (2 - 7) , 6 - 3 , 6 - 7 (5 - 7)'], ['runner - up', '17 july 1995', 'gstaad , switzerland', 'clay', 'yevgeny kafelnikov', '3 - 6 , 4 - 6 , 6 - 3 , 3 - 6'], ['runner - up', '18 september 1995', 'bordeaux , france', 'hard', 'yahiya doumbia', '4 - 6 , 4 - 6']]
ref: Jakob has not won an event on a Clay Surface
template: [ENT] has not won an event on a [ENT] [ENT]