CREATE TABLE table_62115 ("Outcome" TEXT, "Date" TEXT, "Championship" TEXT, "Surface" TEXT, "Opponent in the final" TEXT, "Score in the final" TEXT)

What type of surface did they play on 23 October 2000?
SELECT "Surface" FROM table_62115 WHERE "Date" = '23 october 2000'
SELECT "Surface" FROM "table_62115" WHERE "Date" = '23 october 2000'