CREATE TABLE table_79990 ("Outcome" CLOB, "Date" CLOB, "Tournament" CLOB, "Surface" CLOB, "Opponent" CLOB, "Score" CLOB)

What was the surface of the game that resulted in a final score of 6-1 7-5?
SELECT "Surface" FROM table_79990 WHERE "Score" = '6-1 7-5'
SELECT "Surface" FROM "table_79990" WHERE "Score" = '6-1 7-5'