Maci's Gemstone

Maci’s Gemstone is a 4-year-old female horse from the United States, trained by James Barker. She is the offspring of the stallion Mastery and the mare Night Gem. So far, Maci’s Gemstone has not achieved a maiden victory, having raced seven times without a win. In her latest race at Mountaineer Park on October 12, 2023, she was ridden by Luis Batista and secured 2nd place, finishing behind the winner, Lipari.