Nickname: Gus Owner: Carrie Ostrowski Gender: Gelding Breed: KWPN Disciplines: Combined Driving Sire: Zion-JC Dam: Bonnie B Foal Date: 4/20/2011

Gellerduht has been a star partner for Carrie Ostrowski. The pair began competing at the international level in 2019. The following year, they were named as alternates for the 2020 FEI Driving World Championship for Singles, which was eventually canceled due to the COVID-19 pandemic. In 2022, Gellerduht and Ostrowski were third in Live Oak International CAI3*-H1, the USEF Advanced Single Horse Combined Driving Reserve National Championship at the Katydid CDE, and the Kentucky Classic CDE CAI3*-H1.