Racing 26 July 2025 Diamond Jak exacts revenge in Taumarunui Cup “Mark has done a great job with him and he was unlucky not to win last year. He was the fittest and best horse here today.” Racing 25 August 2024 Diamond Jak caps big double for Brosnan brothers “I thought Diamond Jak won very well today. He was strong." Racing 28 July 2024 Sterling Express continues winning winter for Brosnan “We’ve been going alright through the winter, and it was another really good day today." Racing 13 August 2023 Diamond Jak shines at Te Rapa Diamond Jak continued his purple patch of form at Te Rapa on Saturday when taking out the Dunstan Horsefeeds 2100.