Superstar filly Velocious cemented herself atop the country’s two-year-old ranks with a tenacious victory in Saturday’s Group 1 Sistema Stakes (1200m) at Ellerslie.

Velocious burst onto the juvenile scene on debut at Te Rapa in November, the daughter of Written Tycoon swiftly collecting black-type honours in the Listed Counties Challenge Stakes (1100m) at the following start.

Her sole defeat in a dazzling five-start career came on heavy track conditions in the Group 2 Eclipse Stakes (1200m), a performance rectified in spades when she delivered trainer Stephen Marsh with a triumphant Karaka Millions 2YO (1200m) victory.

Cambridge-based Marsh, alongside syndication group Go Racing entered Saturday’s two-year-old feature hoping to repeat a slice of personal history, after the partnership claimed the Karaka Million-Sistema Stakes double with Ruud Awakening in 2013.

In the hands of regular rider Sam Spratt, Velocious exploded from barrier four as a $1.60 TAB tote- favourite, settling outside the pacemaker Poetic Champion.

Previously unbeaten in four starts, Captured By Love was touted as the key danger to Velocious, but the Te Akau Racing filly was forced back and three-wide early in the eight-horse affair.

As Poetic Champion began to angle wider rounding the home turn, Spratt urged Velocious into the lead and she exploded clear at the 150m, an advantage too great for Archaic Smile and Captured By Love to reel in as the classy fillies scorched home to fill the minor placings.

Marsh admitted to a few nerves prior to the race and was delighted to have claimed his second-straight Sistema crown, after winning last year’s edition with Ulanova after Tokyo Tycoon was disqualified for a swab irregularity.

“That feels great. She’s a great filly, a Karaka Million winner, and now she’s a Group One winner. That just tops it all off,” he said.

“I was nervous coming into today, a lot more gee’d up than for the Karaka Million, but I’m just happy it’s done and dusted and she’s got it.

“I was very comfortable, I thought Sam rode the horse perfectly. I told her to watch out for Poetic Champion, it could run out, and we were always going to nurse her to about the 200m, but when he started to run out, she had to push the button a bit early.

“She was just a sitting duck in the last little bit, she sprinted hard and she’s got a great turn of foot. She’s probably ridden better taking a sit, but Sam rode her perfectly, for today.”