Katie Duerrhammer spearheaded a U.S. one-two in the Marsh McLennan Agency CDI3* Grand Prix on Thursday, April 2, 2026, at TerraNova Equestrian Center in Myakka City, Florida. The 2022 World Equestrian Games team rider headed up the class with a personal best of 70.174% on Kylee Lourie’s Vividus QRE who, at 11 years old, was the youngest horse in the starting line-up of 19.
U.S. Olympic team bronze medalist Kasey Perry-Glass finished second, just 0.7 percentage points adrift, with 69.413% on Diane Perry’s 14-year-old Charmeur x Ferro gelding, Heartbeat WP. The Paris 2024 Olympic combination of Camille Carier Bergeron (CAN) and Finnländerin, her family’s 16-year-old Fidertanz x Donnerhall mare rounded out the podium with 69.217%.
Carier Bergeron added to her collection of ribbons on another of her family’s horses on Thursday, topping the CDI1* Prix St. Georges on the nine-year-old Vitalis x Donnerhall mare, MSJ Valentina Roma. She steered the British-bred Oldenburg to 69.706%, with two judges awarding over 70%.
Vividus QRE was acquired for Duerrhammer by Lourie in late 2024 and they contested two CDIs in 2025. The attractive gelding was formerly competed by the Danish Olympian Catherine Laudrup-Dufour, who trained him up to grand prix
Duerrhammer and the Swedish Warmblood were contesting their third CDI together, with the result marking their first international win and their first plus-70% score. The high mark of 73.261% came from the E judge, Janet Lee Foy (USA), who rewarded the elastic, uphill, and consistent performance from the young gelding by the Blue Hors Zack son Zaladin MI.
“Him being the youngest one in my class and coming home with the win is really exciting,” enthused the 37-year-old who spends winters training with Adrienne Lyle in Wellington, Florida, and summers in Colorado. “I attribute a lot of this success to his previous training with Catherine, and to my trainer and long-time friend, Adrienne. She is brilliant.
“I was really proud of our trot half-passes,” continued Duerrhammer, who recorded her first international victory in four years. “Vividus has incredible scope to go sideways, but keeping everything easy and consistent is a little hard for him. He’s always a maximum effort kind of horse, so one of the highlights in our entire ride was our consistency and showing a more relaxed way of going. There are lots of things to still improve, like consistency of frame and contact, but I’m super happy with his progress.”
Taking on the ride on a horse already trained to grand prix level comes with its own particular set of challenges, something Duerrhammer acknowledged.
“When we purchased him, he was still very, very green at the level,” she explained. “[Taking on a made horse] is just as hard as training your own, and I’ve done both.
When you have to get to know someone else’s horse language and their way of doing things, it always takes a year or two to really mesh with the horse. You can’t really expect it to go any faster and allowing that time to get strength and consistency in your own system brings you together better as a team. We’re really meshing now.”
Duerrhammer will contest the Bridleberry Leather Tack Co. CDI3* Grand Prix Special on Saturday with Vividus QRE.
The CPEDI also got underway on Thursday, April 2, with riders in action in four grades. Three of the classes were topped by U.S. riders who scored over 70%, building on a high-scoring result at the CPEDI in Wellington, Florida, the previous month.
The Grade I combination of Marie Vonderheyden and Karin Flint’s long-legged Oldenburg nine-year-old gelding, Fan Tastico H (by Fürstenball x Weltmeyer), led the CPEDI3* Grand Prix A test with a commanding 72.5% and were the unanimous winners for the judges in the class of four starters. Roxanne Trunnell posted 70.556% riding another Fürstenball gelding, Furstenson MR, Carol Daly’s 10-year-old Hanoverian, for second place.
Rebecca Hart and Kate Shoemaker joined Vonderheyden and Trunnell on the U.S. para team and demonstrated the home nation’s strength in depth with further impressive results. In the Grade III CPEDI3* Grand Prix A test, Rebecca Hart debuted Rowan O’Riley’s 10-year-old Hanoverian Liberation (by Libertad x Wind Dancer) and took the win with 71.167%. In the Grade IV, Kate Shoemaker rode her own Ghandi to a 71.065% blue ribbon. This is just the second international show in four years for the 15-year-old Bojengel x Tuschinski gelding.
In the CPEDI3* Grand Prix Grade V, Canadian Madison Lawson and Laguna won with a score of 65.769%.
Click here for full results from TerraNova’s April CDI.
International and national dressage at TerraNova continues through Saturday, April 4. Watch the free TerraNova live stream, sponsored by B&D Builders LLC, HERE.
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