Jayne (14), Kate (12) and Rachel (10) Beattie make up half the Strath Taieri Pony Club's team competing at the South Island Pony Club Show Jumping Championships in Waimate this week.
Their parents, Ash and Anne, who farm Glenlee Run, a 1416ha property at Clarks Junction, both grew up with horses.
Mrs Beattie hunted when she was seven months pregnant with Rachel and, as infants, the children went in a front-pack with Mr Beattie when he was riding, so they had all ridden "from day dot", she said.
Horses were used regularly on the farm for stock work and the family all enjoyed hunting. Mrs Beattie is joint master of the Otago Hunt Club.
At the championships, Jayne was riding Feel Free, known at home as Molly, Kate was riding Dunurban Subiti (Subby) and Rachel was riding Polly's Secret, also known as Molly.
To avoid confusion, the two Mollys were known as Molly C (for Molly Chestnut) and Molly B (because it was bay), or big and little Molly.
It was normal for the Strath Taieri Pony Club, which was a small, family-oriented branch, to have a team half-filled with Beatties, Mrs Beattie said.
The sisters enjoyed showjumping, eventing and hunting and most weekends involved "horsy" pursuits. The family has about 16 horses.
Mrs Beattie laughed that her horses kept getting "stolen" by her children, with Jayne taking her own hunter to events.
The two-day championships at the Waimate A and P showgrounds, attracted more than 30 teams.
A committee of six spent 12 months planning for the event, head steward John Lavender, of Oamaru, said.
Mr Lavender, whose involvement with pony club started in 1973, said people "just chip in" for a common cause - the children
