CREATE TABLE table_25824 ("Outcome" CLOB, "Year" FLOAT, "Championship" CLOB, "Surface" CLOB, "Opponent in the final" CLOB, "Score in the final" CLOB)

On what year did Newcombe first face Clark Graebner in a final match?
SELECT MIN("Year") FROM table_25824 WHERE "Opponent in the final" = 'Clark Graebner'
SELECT MIN("Year") FROM "table_25824" WHERE "Opponent in the final" = 'Clark Graebner'