The 2026 WIHS Opens with Hunter Victories for Carter and Treace
October 19, 2026 – Upper Marlboro, MD –The 2026 Washington International Horse Show presented by MARS Equestrian™ opened competition on Monday, October 19, and Allison Carter and Twenty Twenty claimed victory in the $12,500 WIHS Adult Hunter Championship, presented by MARS Equestrian™. In the $12,500 WIHS Children’s Hunter Championship, presented by MARS Equestrian™, Riley Treace and Paisley Park took the top prize. WIHS runs through Sunday, October 25, at The Show Place Arena and brings together the top horses and riders in the nation and from around the world for hunters, jumpers, and equitation.
