A September to Remember: Record-smashing $500M+ in Sales. The Keeneland September Yearling Sale just set a new standard. With over $500 million in cumulative sales it became the largest-grossing Thoroughbred auction ever. The sale concluded with session 12 yesterday. “Surpassing $500 million at the September sale marks a pivotal moment for our sport—a milestone the entire industry can celebrate together,” Keeneland president and CEO Shannon Arvin said. #horse #auction #horses #record #horsesofinstagram #trending #horseracing #thoroughbred #sports