CREATE TABLE table_3540 ("Week" FLOAT, "Date" TEXT, "Kickoff" TEXT, "Opponent" TEXT, "Final score" TEXT, "Team record" TEXT, "Game site" TEXT, "Attendance" FLOAT)

How many different kickoffs happened when the opponent was the Scottish Claymores
SELECT COUNT("Kickoff") FROM table_3540 WHERE "Opponent" = 'Scottish Claymores'
SELECT COUNT("Kickoff") FROM "table_3540" WHERE "Opponent" = 'Scottish Claymores'