CREATE TABLE table_30130 ("Round" FLOAT, "Date" TEXT, "Grand Prix" TEXT, "Circuit" TEXT, "MotoGP winner" TEXT, "Moto2 winner" TEXT, "Moto3 winner" TEXT, "Report" TEXT)

Name the circuit for hertz british grand prix
SELECT "Circuit" FROM table_30130 WHERE "Grand Prix" = 'Hertz British Grand Prix'
SELECT "Circuit" FROM "table_30130" WHERE "Grand Prix" = 'Hertz British Grand Prix'