CREATE TABLE table_68348 ("Round" TEXT, "Kick Off" TEXT, "Opponents" TEXT, "H / A" TEXT, "Result" TEXT, "Attendance" FLOAT, "Report" TEXT)

What was the kickoff date for the round value of R4?
SELECT "Kick Off" FROM table_68348 WHERE "Round" = 'r4'
SELECT "Kick Off" FROM "table_68348" WHERE "Round" = 'r4'