Elisabeth “Liz” Halliday began riding when she was eight years old in California and was an active member the United States Pony Club. Halliday moved to England in 2000 to work for famed eventer William Fox-Pitt and remained there to reach her goals. She progressed up the levels and gained her British Horse Society stages 1-4 and teaching qualification.

In addition to her equestrian pursuits, Halliday was a professional racing driver in sportscar and GT endurance disciplines, competing from 1997 to 2010 before focusing on horses.

In 2020, Halliday returned to the U.S. full-time, headquartering her operations in Ocala, Fla., and Lexington, Ky. She was named the World Equestrian Brands USEA Rider of the Year in 2020, becoming the first female athlete to win the award in 39 years.

Recent top results for Halliday include a 10^th-place finish at the 2021 Land Rover Kentucky Three-Day Event CCI5*-L with Deniro Z, a fifth-place finish at the 2022 Luhmühlen CCI5*-L with Cooley Quicksilver.

Halliday started a partnership with Miks Master C in 2022, and they quickly began earning top results. They won the CCI4*-S at The Event at Rebecca Farm followed by a win in the CCIO4*-NC-S at the FEI Eventing Nations Cup^TM Canada, where they also helped the Land Rover U.S. Eventing Team finishes atop the podium. Halliday-Sharp and Miks Master C were on the U.S. team again at the FEI Eventing Nations Cup Netherlands, where fifth with the team and individually. In 2023, they were third in the Land Rover Kentucky Three- Day Event presented by MARS Equestrian^TM CCI5*-L, which was Mik Master C's five-star debut.

Tamra “Tamie” Smith was a member of the U.S. Eventing Team that won gold at the 2019 Pan American Games in Lima, Peru, with Ellen and Alexandra Ahearn and Eric Markell’s German Sport Horse, Mai Baum. In 2021, Smith took Mai Baum to a top-10 finish in his CCI5*-L debut at the Land Rover Kentucky Three-Day Event. That year, they were named as the reserve for the U.S. Eventing Team for the Tokyo Olympics.

Smith has represented the U.S. in FEI Nations Cup competitions, including the CCIO4*-S at CHIO Aachen with Mai Baum and the CCIO4*-L at Boekelo, both in 2021.

Smith was the 2020 USEF CCI3*-L Eventing National Champion with Elliot-V at the Galway Downs International Event, and at the same event finished second in the CCI4*-L with Passepartout. In 2021, she and Mai Baum won the Grand Prix Eventing Showcase at Bruce’s Field. Smith went on to finish second in the CCI4*-S at the Land Rover Kentucky Three-Day Event and third at the Jersey Fresh CCI4*-L with Envogue. With Solaguayre California, Smith won the CCI3*-S at Red Hills International and the CCI3*-L at Jersey Fresh. She closed out the 2021 season with a win in the CCI3*-L at Galway Downs International with Maitanzer.

In 2022, Smith and Mai Baum competed in the Badminton Horse Trials CCI5* where they finished in ninth place. Smith was second and third in The Event at Rebecca Farm CCI4*-S with Solaguayre California and Danito, respectively. Smith and Mai Baum were second in the Great Meadows International CCI4*-S, then headed to the FEI Eventing World Championships in Pratoni, Italy, where they helped the U.S. team earn silver and finished ninth indivudally. Smith closed out the season with a win in the Morven Park CCI4*-L with Solaguayre California and a second-place finish at the Maryland 5 Star CCI5*-L with Danito. 

In 2023, Smith was first, second, and fifth in the Galway Downs Spring CCI4*-S with Mai Baum, Danito, and Solaguayre California, respectively. Smith and Mai Baum earned a historic win at the Land Rover Kentucky Three-Day Event presented by MARS Equestrian^TM CCI5*-L as the first U.S. combination to win since 2008. 

Smith has trained horses and riders at her Next Level Eventing since 2005.