Mastery’s first yearlings lived up to lofty expectations at the recently concluded Sept. 9-10 Fasig-Tipton Kentucky Showcase sale, averaging $257,143, over ten times his stud fee.

The Claiborne Farm stallion had six lots bring at least $140,000, with a top colt for $450,000 and filly for $400,000.

Both the colt and filly sold on Thursday.

The colt, consigned by Eaton Sales, agent, and cataloged as hip No. 413, sold to JCM. Out of the Tiznow mare Texas Gem, who is out of the graded stakes winner Gemswick Park.

The filly was hip No. 350, consigned by Sam-Son Farm and purchased by John McCormack Bloodstock.

The impeccably-bred filly is out of Breeders’ Cup Filly and Mare (G1) heroine Shared Account, making her a half-sister to last year’s Breeders’ Cup Juvenile Fillies Turf (G1) winner Sharing.

“I loved her and I’m very surprised I bought her,” said McCormack to the TDN, noting that the purchase was made on behalf of an existing client and that she would remain Stateside, at least for the moment. “I thought she was an absolute standout here. I loved the class of her; I loved the shape of her; I loved the big ears on her. She was just so elegant. We don’t know what Mastery can do—that’s the unknown–but the mare has done it, [given that hip 350] is out of a Breeders’ Cup winner and a half to a Breeders=’Cup winner. But, she has the physical. For me, I loved everything about her.”

Mastery’s overall yearling sales average of $278,306 ranks second among all First-Crop yearling sires. His next yearlings to be offered will be at the marathon Keeneland September sale, which runs Sept. 13-25. Mastery has 68 lots in the catalog.