The results at the stable's home racetrack came hard on the heels of success on New Year's Day at Ellerslie.
"We won two big group races at Ellerslie on New Year's Day. Volkstok'n'barrell is now the New Zealand Derby favourite, so that's massive," she said.
It was the horse's fourth straight win - not bad considering the 3-year-old Tavistock gelding has only had five race day starts. He started his career with a third placing and after that has had a perfect record with the $100,000 Group 2 Great Northern Guineas at Ellerslie his biggest win to date.
Stablemate Midnitemajicman is currently the fourth Derby favourite after winning his first race of the day at the New Year's Day meeting at Ellerslie. Another 3-year-old Tavistock gelding, he was superbly steered home by top international jockey, Kiwi James McDonald.
Meanwhile, stable favourite Durham Town returned to his old form with a close third in the group one Sistema Railway Race and not to be outdone, both To Be Sure and Candle In The Wind defied their long odds by finishing fifth and seventh respectively in the top class Rich Hill Mile field.
Volkstok'n'barrell will have two starts ahead of the New Zealand Derby race meeting on February 28; a mile race at the Karaka Million Twilight meeting at Ellerslie on January 26 and over 2100m at the Avondale Guineas on February 14. Midnitemajicman will also start in the same race at Avondale.