Into Mischief Colt Tops Keeneland Book 1 at $3.7 Million, Igniting Sale Momentum

Keeneland’s Book 1 of the September Yearling Sale posted strong results: 208 yearlings sold for $151.4 million, average $727,885 and median $600,000, continuing a four-session record pace. The day’s top lot was a $3.7 million Into Mischief colt out of Grazie Mille (half‑brother to Mo Town and Justique), bought by M.V. Magnier and White Birch Farm. Other seven-figure offerings included a $3.1 million Gun Runner colt and a $2.6 million Flightline colt, with notable buys from Curlin, Justify, and Not This Time among the day’s highlights. The Flying Dutchmen and Lane’s End led multiple expensive purchases; the RNA rate rose to 28.77%. Book 2 begins next with sessions at 11 a.m., as demand remains strong at the top despite concerns about the lower end of Book 1.