CREATE TABLE table_64670 ("Year" FLOAT, "Tournament" TEXT, "Venue" TEXT, "Discipline" TEXT, "Result" TEXT, "Extra" TEXT)

What tournament had an extra of 3:06.94 s?
SELECT "Tournament" FROM table_64670 WHERE "Extra" = '3:06.94 s'
SELECT "Tournament" FROM "table_64670" WHERE "Extra" = '3:06.94 s'