India, May 3 -- The emotional story surrounding So Happy at the 2026 Kentucky Derby extends far beyond the racetrack, as trainer Mark Glatt prepares for the biggest race of his career while continuing to mourn the loss of his wife, Dena Glatt. The two had been married for 25 years. Dena died on February 12 at the age of 57.

According to TODAY.com, her cause of death was heart failure - a devastating loss that came just months before So Happy's breakthrough run to Churchill Downs.

Glatt has spoken openly about the emotional toll the loss has taken as he navigates the Kentucky Derby spotlight for the first time in his three-decade training career.

"She was right by my side, and a big part of what I do professionally, as well as being my ...