Snapdragons proved to be a wise investment for owner Shane Law, winning the 2021 Tres Osos Cow Horse Derby with Zane Davis. * Photo by Primo Morales Reined Cow Horse Results RESULTS: 2021 Tres Osos Cow Horse Derby Results from the 2021 Tres Osos Cow Horse Derby, which was held during the NRCHA Celebration of Champions in Fort Worth, Texas. READ MORE