Meet the team

Scott McGriff
As an entrepreneur and recreational motocross racer, Scott McGriff is a Motocross/Supercross ambassador for the sport. Scott is a successful business owner with a diverse list of investment interests. In 2023, circumstances fell into place for the purchase of an old MX Racetrack, located just North of the small East Texas town of Edgewood. Scott is excited to devote his time to make Sonoma Ranch a jewel in the South, meeting the needs of riders while creating enjoyment in the MX world. As a father to an amateur MX racer, he has had the pleasure of traveling across the United States as spectator and pit personnel at many of the well-known racetracks. He has truly enjoyed the opportunities to meet and get to know the track owners, operators, staff and officials in the sport of Motocross and is thrilled to be part of this dynamic sport. 
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Rydane Dixon
Rydane Dixon got his start 20 years ago in the MX world. He is an experienced MX racer, trainer, and brings a level of expertise to bike set up and body posture with a focus on setup and suspension. Rydane is the Owner of Merge Racing Technologies where they manufacture tuning parts and tailor bikes for the rider’s ultimate experience. They are always creating new ways to improve quality of riding through education and innovative technology. Rydane has years of experience managing tracks while cultivating strong relationships with both internal and external partners. He is committed to staying informed on AMA guidelines and is passionate about rider knowledge, safety, and track awareness. 
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Tommy Hahn
Tommy Hahn has over 3 decades of MX experience. He started racing at 7 years old, turned professional at age 17 and retired at age 31. Tommy rode for every Japanese manufacturer during his professional career and achieved 18 combined podiums and 1 win on 450MX. Over the years, he has also been heavily involved in training riders using proven and evolving methods to achieve the full potential of a riders performance. Tommy has decades of knowledge in creating individualized training programs and understands how much grit one needs to succeed. The Hahn family owned a 2500-acre farm growing up where Tommy learned to operate heavy machinery at the age of six. He currently owns equipment that Kawaski rents for a Supercross track in Corona, CA.
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Randy Poulter
Randy Poulter is a former Professional Motocross racer and current owner of 903 Excavation. Randy is a well-known motocross track creator and builder with extensive knowledge in designing unique and exclusive tracks that can be seen throughout the states. He is the previous owner of Underground MX Park in Kemp, TX, which during his ownership was a premier motocross racing facility that hosted an AMA featured event, a professional level Supercross track and a pee wee track. Growing up on a farm in Prophetstown, IL, Randy began riding dirt bikes when he was nine years old and at age 16 began building motocross tracks. He then started traveling across the United States to build motocross tracks for different companies and organizations. He is one of the nation’s top motocross track builders.
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Amy Goodson, MS, RD, CSSD, LD
Amy Goodson is a Sports Dietitian and Certified Specialist in Sports Dietetics and has twenty years of experience as a sports dietitian working with athletes of all levels. Amy has worked with Texas Christian University Athletics, the Dallas Cowboys, Texas Rangers and their minor league affiliates, the NBA G-League, the Alliance of American Football League, FC Dallas Soccer, Ben Hogan Sports Medicine, and many PGA Tour players, as well as with many middle school, high school, and endurance athletes. Amy’s business, The Sports Nutrition Playbook, provides one-on-one performance nutrition coaching and on-demand programs for athletes. She is the author of The Sports Nutrition Playbook, a play-by-play flipbook on sports nutrition for athletes, parents, coaches, and athletic trainers, and hosts The Sports Nutrition Playbook Podcast and YouTube Channel.

Donna L McGriff, CPA
As an entrepreneur and CPA, Donna McGriff is thrilled to support Sonoma MX in whatever capacity is needed, but especially the accounting and business side of the business. Donna owned multiple businesses during her career including a public accounting firm and is excited now to support the Team at Sonoma MX. 

Emily Holden, MS, RDN, LD

As a Registered Dietitian Nutritionist, Emily specializes in sports nutrition and enjoys working with collegiate athletes, high school athletes, and passionate fitness enthusiasts. She thrives on helping individuals develop practical, sustainable strategies to fuel their bodies for peak performance and overall wellness. Her experience spans working with athletes from diverse sports, including artistic swimming, gymnastics, track and field, cheerleading, dance, basketball, and cross-country. With a strong foundation in nutrition science and a personal background as a CrossFit coach, athlete, group fitness instructor, and personal trainer, Emily brings a well-rounded, holistic approach to performance nutrition. She is passionate about empowering clients to achieve their health and performance goals by emphasizing the connection between proper fueling, recovery, and long-term well-being. Whether working with seasoned athletes or those striving to adopt a more active lifestyle, Emily is dedicated to providing science-based, personalized guidance for optimal results.