After redshirting his first year at Washington State, Dillard played only 3 games during his freshman season at left tackle.

Before his junior season, strength coach Marco Candido repositioned Dillard as the replacement for left tackle Joe Dahl.

[6] Dillard entered training camp in 2021 in a battle with Jordan Mailata for the starting left tackle role, but began the season as a backup.

[8] The Eagles declined the fifth-year option on Dillard's contract on May 2, 2022, making him a free agent after the season.

[14] Dillard grew up in Woodinville, WA., to Jennifer Bollinger and father, Mitch, who had also played football for Washington State Cougars as an offensive lineman from 1983 to 1986.