Piper hosts Plaidcast in Person in front of a live audience at Paso Robles Horse Park in Paso Robles, California with Amanda Diefenderfer, Jamie Cheney and James Waldman.

• Host: Piper Klemm, publisher of The Plaid Horse
• Guest: Amanda Diefenderfer began with the Paso Robles Horse Park six months before the gates first opened in 2015. She grew up riding hunter/jumpers in California and was thrilled when the opportunity allowed her to bring this passion to her career. Initially, she joined the Paso Park to oversee strategy and marketing of the Foundation’s efforts. In 2018 her role grew to include management of all three of the Paso Park’s show products - Schooling Shows, the regionally rated Pathway series, and the nationally rated Classic Series. Today, she manages 12 shows per year, is on the USHJA Amateur Rider task force, is the treasurer of the Norcal Hunter Jumper Association Board of Directors, and continues to compete on her six-year-old jumper.
• Guest: Jamie Cheney is a second-generation horse trainer whose passion for horsemanship is deeply rooted in family and tradition. Jamie runs Boundary Gate alongside her mom, Heidi Cowley, where they focus on developing young horses and riders with care and expertise. She’s been coming to Paso Robles since the very beginning, and now shares her love of the sport with her daughters, Addison and Felicity, who both ride. Jamie is committed to keeping equestrian sport viable for future generations—not just through training, but through the broader access and education. She has served on the NorCal Hunter Jumpers Association board, the Tri-Valley Animal Rescue board, and currently serves on the Livermore Unified School District Education Advisory Committee. Whether she’s in the ring or in the community, Jamie brings heart, vision, and a deep sense of purpose to everything she does.
• Guest: James Waldman has been a respected figure in the San Diego equestrian community for more than 40 years. A lifelong trainer, he now shares his expertise as both a judge and clinician. James currently serves as President of the Greater San Diego Hunter Jumper Association and has judged at many prestigious events, including the CPHA Foundation Finals, Pony Finals, the New England Equitation Championships, and Capital Challenge. His extensive experience and dedication to the sport have made him a valued voice in the hunter-jumper world.
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