CREATE TABLE table_51302 ("Outcome" TEXT, "Year" FLOAT, "Tournament" TEXT, "Surface" TEXT, "Opponent in the final" TEXT, "Score" TEXT)

who is the opponent in the final when the year is before 1883?
SELECT "Opponent in the final" FROM table_51302 WHERE "Year" < '1883'
SELECT "Opponent in the final" FROM "table_51302" WHERE "Year" < '1883'