It was another good day for Keeneland.  And, another good day for Airdrie Stud’s impressive rookie stallion Cairo Prince — who has caught the eye and pocketbooks of Thoroughbred yearling buyers all over the land.

On Monday, bloodstock agent Mike Ryan shelled out $350,000 for a colt by Cairo Prince to top the day’s activities. Consigned by Lane’s End, agent, the colt is out of the winning Horse Chestnut (SAF) mare Precious Princess. He is a half-brother to Grade 3 winner Zipessa, who finished second by a neck in the Kentucky Downs Ladies Turf (G3) on Sept. 9.

Glen Hill Farm’s Craig Bernick spent $285,000 on a filly by Orb, consigned by Claiborne Farm, agent. She is out of the winning Langfuhr mare Maxinkuckee Miss and from the family of Grade 3 winner Fly’n J. Bryan.

Select Sales was the day’s leading consignor, selling 35 horses for $2,374,000. EQB, agent, purchased four yearlings for $485,000 to be the leading buyer.

The real winner this September is Keeneland. After a brisk Monday full of action, Keeneland’s gross sales of $273,298,000 through seven sessions of the 12-day September Yearling Sale surpassed total sales of $272,890,500 recorded during last year’s entire 13-day auction.

Imagine that? The sales auction company has already surpassed last year’s total sales numbers and they have six days to go.

Monday marked the first of the two-day Book 4. Keeneland sold 276 horses for $18,385,000, for an average of $66,612 and a median of $50,000. All told, Keeneland has now sold 1,455 horses for $273,298,000, for an average of $187,834 and a median of $120,000.

“Today’s session was strong, and there was a lot of activity in the barn area with buyers inspecting horses for tomorrow’s session,” Keeneland Director of Sales Operations Geoffrey Russell said.

The September Sale continues through Saturday, with all sessions beginning at 10 a.m. ET.

A couple of others go through the ring on Monday: