A white-hulled, spring oat developed by the South Dakota Agricultural Experiment Station (SDAES) and released in 2015. Hayden has medium-late maturity, heading about 4 days later than Shelby 427. Hayden is 2 inches taller than Shelby 427 and 4 inches shorter than Goliath. Hayden has excellent yield potential and high-test weight. Hayden is resistant to smut and BYDV. The variety is moderately susceptible to crown rust and stem rust. Lodging resistance is better than Goliath and similar to Shelby 427.