Dromore's Emma McEntee has won the €4,000 1m 35m HSI Autumn Development 7/8 year old class and her younger brother John made it a family double winning the €3,000 1.40m Grand Prix at Barnadown, Wexford.
The Co Down marketing student shone with MHS New York, owned by the Hughes/Bravo team, beating multiple national champion Francis Connors on Erne Mountain Dew, from a 15 horse jump off and 26 starters.
Emma, 19, said: "We had a great day at Barnadown. New York has shown consistent form over the past two months, it was fantastic to win the Autumn Series. My other horse, Mirdaad's Zanzaaan, was also second in 1m 20."
Grand Prix winner John, who had multiple successes this summer, partnered the Hughes/Bravo owned Casanova Van Overis Z to clinch the nine horse jump off in 42.04, beating Jason Higgins on Dondoctro Royal K, clear in 42.86.
The 17-year-old said: "I was early to go in the jump off but saved time with six strides to the second fence, which placed me on target."
In Vejer, Spain, Dermott Lennon claimed the 1m 45 Speed Challenge with MJM Pursuit from 50 starters, winning in 64.54 ahead of New Zealand's Bruce Goodwin in a time of 65.
Max Wachman and Brooklyn de Hus also won the Vejer 1.40m small Grand Prix.
In St Tropez, France, Denis Lynch partnered Spring Dark to victory in the two star Grand Prix from an 18 horse jump off, collecting €7,500.
Punchestown Horsesport Ireland eventing saw wins for Suzanne Hagan (Scarva) in four-year-olds, Joseph Murphy (Comber) 7/8 year olds and Declan Cullen (Gilford) six-year-olds. Elizabeth Power, sister of jockey Robbie Power, won the five-year-old section.
Lisburn Olympic eventer Clare Abbott, on Douglas Sloan's Malcolm X, were overall winners of the six part HSI series.