A week after Deep Impact’s daughters finished one-two in the G1 Japanese Oaks, his sons recorded this same result in the G1 Tokyo Yushun (Japanese Derby) on Sunday.

One of four sons in the 18 horse field, the Katsuhiko Sumii-trained Roger Barows caused somewhat of an upset, but connections felt the colt was always going to performer well up in distance.

Roger Barows’ winning time of 2:22.6 for 2,400 metres was a stakes record, lowering the mark set by Duramente in 2015 by 0.6 seconds.

No stranger to top class runners, Sumii won the 2007 Tokyo Yushun with the champion filly Vodka and also trained this year’s race favourite, the previously unbeaten filly Saturnalia who finished in fourth.

With the sons of Deep Impact becoming ever more prevalent at stud, Woodside Park Stud could not be more confident in our own dual Australian G1 winner Tosen Stardom, who will stand this season at $19,250 (inc. GST).