Anthony, 19, was convicted of murder in June and sentenced to 35 years in prison for the April 2025 stabbing death of Austin Metcalf.
Judge Michael Chitty denied the retrial motion in a half-page order following a two-day hearing this week near Dallas, citing a review of the evidence and arguments. He did not elaborate.
Anthony, who is black, and Metcalf, who was white, were athletes for different high schools in the Dallas suburb of Frisco, where several teams were competing on the rainy spring day when the meet took place.
Anthony sat under the tent that belonged to Metcalf's team, and Metcalf and others repeatedly told him to leave, witnesses testified. That led to an escalating confrontation.
Prosecutors said Anthony provoked Metcalf, and witnesses identified Anthony as the aggressor.
At one point Anthony reached inside a bag and said: “Touch me and see what happens,” according to a police report.
Witnesses said Metcalf pushed Anthony, who pulled out a knife and stabbed him in the chest.
Media gave the trial a lot of attention because of the racial tension that was generated over the course of the trial and subsequent conviction.
