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Put the costume on, take one photo, and upload it below. Entries open October 1 and close October 30.
Four winners, announced on four Fridays: October 9, 16, 23 and 30.
Each winner takes home $500 in Summit Animal Health equine products.
While you're deciding on the costume, make sure your horse is supported this fall.
One bite a day, given straight from your hand, with an Advanced Liposomal Formula.
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Daily support for a balanced gut through training, travel, and feed changes.
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Daily powder for hoof wall integrity, growth and resilience.
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Supports muscle development and recovery through training and show season.
Shop →Show jumping, reining, barrel racing, endurance, hunters. When the program matters, this is what they reach for.
I depend on Summit for my horses. It's the product you're going to run with or against, so you'd better get on board.
One winner is announced every Friday in October on our Facebook and Instagram pages. This updates automatically.
Contest rules. No purchase necessary. Open to legal residents of the United States (50 states + DC), age 18+. The contest opens October 1, 2026 and closes October 30, 2026 at 11:59 PM ET. To enter, complete the entry form with your name and email address and upload one (1) photo of your horse in costume to receive one (1) entry. Each week, the Summit Animal Health team will choose the best costume from the entries received. That week's winner will be announced on the Summit Animal Health Facebook and Instagram pages on October 9, 16, 23 and 30. Entries that are not selected stay eligible for the following weeks. Winners will also be contacted via the email address provided at entry. Prize: four (4) winners will each receive $500 in Summit Animal Health equine products. Prize non-transferable. Sponsor: Summit Animal Health.