CREATE TABLE table_26918 ("Round" FLOAT, "Circuit" TEXT, "Date" TEXT, "Pole Position" TEXT, "Fastest Lap" TEXT, "Winning Rider" TEXT, "Winning Team" TEXT)

Who was in the pole position for knockhill?
SELECT "Pole Position" FROM table_26918 WHERE "Circuit" = 'Knockhill'
SELECT "Pole Position" FROM "table_26918" WHERE "Circuit" = 'Knockhill'