Kim Gardner - Breeding Manager

is an expert in her field of equine reproduction. In her career she has successfully bred over 8,000 mares. She is a Certified Veterinary Technician receiving her BS at Brigham Young University, with an emphasis in Veterinary Technology. She also received her MS from BYU in Animal Science with an emphasis in Nutrition. Kim is experienced and is an expert in her field. She is also an incredible teacher to our coworkers and the interns we have every year.

Alexis Stephas - Stallion & Marketing Manager

joined the team in 2017, first as a stallion owner, then as the stallion manager and has now extended her role to the marketing side of SDP Buffalo Ranch. Originally from Tennessee, Alexis moved to Texas to be closer to the action in the cutting horse arena. She has nearly $750k in lifetime earnings and multiple World & National Championships as a showman. She has also represented the USA in the USA/Australia Non Pro Challenge and brings her experience from the industry to help grow & promote every stallion.

Alex Thomson - Assistant Stallion Manager

joined SDP Buffalo Ranch in the spring of 2023 and immediately became an asset. She came with a lifetime of horse experience and picked up reproduction and stallion managing quickly. Alex has a background in barrel racing, competing and winning at a high level. Her attention to detail is incredible and with that, she will assist in sale prepping the yearlings in the off season and with media management. 


Christian Miller - Head Trainer

has been a part of the SDP Buffalo Ranch team for a combined 6 years. He started as the assistant trainer for Paul Hansma and rejoined the ranch in 2019 as the head trainer. Christian grew up in Georgia and was in the cutting horse world before he could walk. He won a long list of achievements as a Youth, Non Pro & Amateur and now an even longer list as an Open Rider. He has been an Open Champion in multiple events, including the Abilene Spectacular, Super Stakes & Summer Spectacular, and has over $794k in lifetime earnings. Christian Miller accepts Non Pro & Amateur riders of all levels.

Todd, Alex, Chico & Fernando - Ground Managers