 He returned as Oklahoma State's starting running back in 2019 and had a stellar year rushing for 2,094 yards on 328 carries and 21 touchdowns.Despite speculation that he would declare for the 2020 NFL Draft after this season, Hubbard announced that he would return to school for his redshirt junior year.In June 2020, Hubbard threatened to boycott the football team and any affiliation with the university after a photo surfaced showing Oklahoma State head coach Mike Gundy wearing a T-shirt promoting the One America News Network, a far-right news channel.