CREATE TABLE table_23668 ("Player" TEXT, "Played" FLOAT, "Sets Won" FLOAT, "Sets Lost" FLOAT, "Legs Won" FLOAT, "Legs Lost" FLOAT, "100+" FLOAT, "140+" FLOAT, "180s" FLOAT, "High Checkout" FLOAT, "3-dart Average" TEXT)

How many legs has the player with high checkout of 80 won?
SELECT "Legs Won" FROM table_23668 WHERE "High Checkout" = '80'
SELECT "Legs Won" FROM "table_23668" WHERE "High Checkout" = '80'