100 Days to Football Time in Oklahoma 2026: #20 Casen Calmus By: Ryan Lewis Posted on: August 15, 2026

Football Time in Oklahoma

Football Time in Oklahoma is only 20 days away. We’re counting down the days with a look at each number on the roster; today, we’ll spotlight Casen Calmus.

Noteworthy Numbers

2006-2010 – Quinton Carter

2002-2005 – Kejuan Jones

1998-2001 – Rocky Calmus

1983-1986 – Spencer Tillman

1975-1979 – Billy Sims

Player Profile

Position: Defensive Back

Height: 5’10”

Weight: 205

Class: Redshirt Junior

Seasons at OU: 3

Hometown: Brentwood, Tenn.

Previous School: Brentwood Academy

The Path to Norman

Casen Calmus is the son of Oklahoma legendary linebacker Rocky Calmus. Rocky played for OU from 1999-2001; he helped the Sooners win a National Championship in 2000, was a two-time consensus All-American, and won the Butkus Award in 2001. Casen attended high school in Tennessee, but still made several visits to Norman. When Coach Venables offered a preferred walk-on spot, the younger Calmus decided to play for OU.

Career so Far

Calmus took a redshirt season in 2023 and has not yet played. He was named to the SEC Fall Academic Honor Roll in both 2024 and 2025.

Highlights

This Season

Calmus is entering season number four as a veteran of the team in a reserve role. OU’s corners will be led by Eli Bowen and Courtland Guillory, with Jacobe Johnson factoring in heavily. Calmus will once again offer practice reps and depth to the Sooners in 2026.