CREATE TABLE table_41794 ("Year" FLOAT, "Competition" TEXT, "Venue" TEXT, "Position" TEXT, "Event" TEXT, "Notes" TEXT)

What Position was achieved in the World Championships Competition in Tokyo, Japan?
SELECT "Position" FROM table_41794 WHERE "Competition" = 'world championships' AND "Venue" = 'tokyo, japan'
SELECT "Position" FROM "table_41794" WHERE "Competition" = 'world championships' AND "Venue" = 'tokyo, japan'