Table: tennis_match_results_4
Columns: outcome
date
tournament
surface
partner
opponents_in_the_final
score_in_the_final

Question: On what surface was the tournament with opponents kathleen horvath marcella mesker in the finals?
SQL: SELECT "surface" FROM tennis_match_results_4 WHERE "opponents_in_the_final" = 'kathleen horvath marcella mesker'

Question: What is the date of the final that has a score of 3–6, 6–3, 6–4 and penny barg paula smith was the opponent?
SQL: SELECT "date" FROM tennis_match_results_4 WHERE "score_in_the_final" = '3–6, 6–3, 6–4' AND "opponents_in_the_final" = 'penny barg paula smith'