Input (grade 11): The "East" portion of the course consists of the pit straight to the first half of the Dunlop curve (turn 7), before leading back to the pit straight via a tight right-hander.
Output (grade 3): The "East" course is made of of the pit straight to the first half of the Dunlop curve (turn 7). It then leads back to the pit straight via a tight right hand turn.