CREATE TABLE table_68472 ("!Aces" FLOAT, "Player" FLOAT, "Opponent" TEXT, "Round" TEXT, "Year" TEXT, "Event" FLOAT, "Surface" TEXT, "Sets" TEXT)

What is the highest number of players during 1r year with a clay set and more than 4 aces?
SELECT MAX("Player") FROM table_68472 WHERE "Year" = '1r' AND "Sets" = 'clay' AND "!Aces" > '4'
SELECT MAX("Player") FROM "table_68472" WHERE "!Aces" > '4' AND "Sets" = 'clay' AND "Year" = '1r'