Clayton Douglas has celebrated his first Group 1 win with Giga Kick at Randwick.

Former Adelaide apprentice Ryusei Sakai returns to Australia on Saturday to ride Ho O Amazon in the Group 1 All Aged Stakes at Randwick.

The $1.5 million Group 1-Schweppes All Aged Stakes and $600,000 Gr 1-Moët & Chandon Champagne Stakes feature at Royal Randwick this Saturday on the final day of a record-breaking Sydney Autumn Racing Carnival.

Japanese trainer Yoshito Yahagi is no stranger to big-race winners – and now has his eyes fixed on the Darley July Cup on Saturday with King Hermes.