Just enter a few details and it sends you a promo code to claim a free ticket for the Caufield Guineas on October 14.
In order to gain entry into the Promotion (an Entry), an Eligible Entrant must:
a. hold a valid ticket to the 2017 Wilson Security Sandown 500 and redeem the offer for one (per person) General Admission ticket to the 2017 Ladbrokes Caulfield Guineas Day either in person at the MRC Ticket Office Sandown Racecourse before 5pm Sunday September 17, 2017 or via entering correct promo code at mrc.racing.com/v8 before Midnight Wednesday 20 September 2017. (the Entry Period)
b. Promo Code may be used in conjunction with the purchase (at stated price at time of purchase) of additional General Admission tickets to 2017 Ladbrokes Caulfield Guineas Day.
OP perhaps amend title to Caulfield.