Using Data to Race a Future Champion: The Journey of Sweet Reply’s Colt

At G1 Goldmine and Stallion Match, we’re proud to create leading software platforms that empower the horse racing and breeding industry. But what sets us apart is that we don’t just talk about pedigree analytics—we actively apply our tools and insights to our breeding and buying decisions. One of our latest ventures perfectly illustrates this: the decision to breed our mare, Sweet Reply, to Australia’s leading sire, I Am Invincible.

The Decision-Making Process

Our journey to this mating began with a G1 Goldmine 20/20 Broodmare Report for Sweet Reply. This report analyses up to 250 stallions based on location and fee range, ranking them according to compatibility and potential success. It’s the same report available to all G1 Goldmine users, highlighting the I Am Invincible x Sweet Reply mating as the top result.

The report’s data was compelling:

Rating: The mating was rated as "Outstanding." A mating rated "Outstanding" is 2.3 times more likely to become a stakes winner.
Perfect Match: It earned a "Perfect Match" flag, indicating that highly similar pedigrees have produced stakes winners at a significantly higher rate. Again, "Perfect Match" rated matings are 8.1 times more likely to achieve stakes winner status.
Impact Profile: The pedigree combination featured 75% green and gold cells, signifying a history of exceeding expectations in producing high-performing progeny. According to our studies, as the number of gold cells within an Impact Profile increases, so do its chances of becoming a stakes winner; a pedigree having 4+ gold cells results in a 3.3 times likelihood of becoming a stakes winner.

This combination of quantitative data and proven pedigree trends formed the foundation of our decision. The report can be viewed HERE.

Why Sweet Reply?

Sweet Reply is a stakes-placed mare by Deep Field out of Miss Midas with a commendable racing career. She narrowly missed victory in the 2020 Ladbrokes Sandown Guineas (Group 2), finishing second by just 0.1 lengths. She was a beautiful filly at the 2019 Magic Millions Gold Coast Yearling Sale, which Mitchell Bloodstock loved. She is by Deep Field, who has produced some serious racehorses like Group 1 winners Voyage Bubble, Al Muthana, Portland Sky, Sky Field, and current Newgate stallion Cosmic Force.

Why I Am Invincible?

Standing at Yarraman Park in NSW, I Am Invincible is one of Australia’s most successful sires. Renowned for producing elite sprinters and middle-distance runners, he boasts over 112 individual stakes winners, including Imperatriz, In Secret, Brazen Beau, Loving Gabby, Viddora, Home Affairs, and I Am A Star. His progeny consistently achieve excellence on the track, and his record has earned him a stud fee of AUD 275,500—a testament to his unparalleled influence in the breeding world. He also has 12 stallions standing at stud, including our Hellbent, whom we were fortunate enough to race and now part-own as a stallion with Yarraman Stud in the Hunter Valley.

Proven Pedigree Success

The G1 Goldmine 20/20 Broodmare Report further solidified our confidence in this mating. It uses Stallion Match algorithms to analyse the success of the complete pedigree. It highlighted stakes winners with similar pedigrees, showcasing the exceptional potential of this cross:

Libertini: A high-class sprinter who won 3 Group 2 (G2) races and placed in the Group 1 (G1) Darley Sprint Classic. Libertini’s pedigree has a CSI score of 26, indicating an 83% similarity to this mating— a testament to the genetic strength of this cross.
Imperatriz: A dominant performer with 5 Group 1 (G1) wins to her name, including the Newmarket Handicap. Her pedigree also boasts a CSI score of 26, aligning closely with this mating’s genetic makeup.
Marabi: Undefeated in her first 7 starts, including a Group 1 (G1) Oakleigh Plate victory. Her CSI score of 25 highlights an 80.6% similarity to this pairing, further showcasing the proven success of such genetic combinations.

The CSI score (Common Similarity Index) measures how closely a pedigree matches proven stakes winners, with a theoretical maximum of 31. These results validate the potential of the I Am Invincible x Sweet Reply mating and align perfectly with our data-driven approach to breeding decisions.

You can view the current mating of Rumour HERE.

Beyond Software: Living Our Mission

At G1 Goldmine and Stallion Match, we’re more than just technology providers. We’re active participants in the industry, using our tools to identify opportunities, mitigate risks, and ultimately breed and buy horses with the highest potential. The I Am Invincible x Sweet Reply colt is a prime example of this commitment.

By practising what we preach, we aim to inspire confidence in our platforms and showcase the tangible results they can deliver. Whether you’re a breeder, buyer, or racing enthusiast, our tools are designed to help you make informed, data-backed decisions—just as we do.

Harry Mitchell from Yarraman Park was particularly impressed with this colt, noting that he looked like the type to get up and run early. After confirming his vet report was all clear, we decided to race the colt with a group of friends. Now named Rumour, he is currently being broken in at Vantage Hill under the care of Blair Richardson.

We’re excited to see how his journey unfolds with a great group of owners!