Danny O'Brien's outstanding run of success with the stock of WS stallions continued on his home track when Shamrocker overcame a torrid run to win the Gr 2 VRC Sires' Produce Stakes. She is by O'Reilly who provided the Flemington conditioner with one of his most memorable training victories when Master O'Reilly triumphed in the 2007 Gr 1 Caulfield Cup.

Shamrocker faced the wind when posted three wide on Saturday but kept giving valiantly for rider Glen Boss to claim the two-year-old feature. She is a stablemate of Blue Diamond Stakes winner Star Witness, who provided the WS-bred Starcraft with his first Gr 1 victory as a sire in the Blue Diamond Stakes.

"She'd had a three and a half weeks off and tracked three or four-deep for the whole race," said O'Brien. "Very rarely do they hold on like that. She was actually probably the strongest on the line".

Shamrocker, who became O'Reilly's 45th individual stakeswinner is likely to be spelled now and be prepared for the VRC Oaks in the spring. "We've always had hopes she would be an Oaks filly. “She’s a really nice, scopey O’Reilly filly and we’ve had a lot of success with that breed and hopefully she can continue that," O'Brien said.

A $65,000 Karaka Select Sale purchase, Shamrocker was bred by renowned horse dentist Vern Trillo. She is out of the Blues Traveller mare Bohemian Blues who won five times and is a half-sister to stakes-winners Rock N Roll Kid and Fairy Tale.