Boise State Broncos Secure Most Complete Pac‑12 Roster for 2026

Boise State Broncos head into the 2026 season with the Pac‑12’s most complete roster on paper, returning 11 full‑time starters and 57 percent of last year’s production, positioning the program as a favorite to claim the conference crown.

How did Boise State build this roster?

The Broncos locked in three straight Mountain West titles before the conference realignment, then kept the core that powered those wins. Quarterback Maddux Madsen, running backs Dylan Riley and Sire Gaines, edge rusher Jayden Virgin‑Morgan, linebacker Boen Phelps and defensive back Jaden Mickey all logged significant snaps last season. Their combined experience translates into a 60 percent returning offensive output and a 55 percent defensive share, ranking second only to San Diego State in the Pac‑12.

Why does returning production matter?

Returning production is a reliable predictor of early‑season success. ESPN’s Bill Connelly placed Boise State at No. 45 nationally for overall returning production, trailing only San Diego State’s 59 percent. The Broncos’ 57 percent figure means more than half of the yards, touchdowns and tackles that defined last year will be in familiar hands, giving the coaching staff continuity while opponents scramble to scout new faces.

What about the transfer portal and recruiting?

Boise State signed the fewest Division I and II transfers among the eight‑team Pac‑12, but each addition carries starter potential. The 2026 junior‑college and high‑school signing class topped the conference and landed at No. 51 nationally, the highest‑rated class in program history. While San Diego State’s portal class sits at No. 74, the Broncos’ selective approach emphasizes fit over volume, reinforcing depth at key positions.

Who will test the Broncos next?

The first test arrives on September 5, 2026, when Boise State Broncos travel to face the Oregon Ducks. That matchup will be the earliest indicator of whether the returning talent and new recruits can translate paper‑perfect depth into on‑field dominance. A strong showing could cement Boise State’s status as a Pac‑12 contender and set the tone for a season that aims for a College Football Playoff berth.

What does this mean for the conference outlook?

With San Diego State and Texas State also returning high percentages of production, the Pac‑12 appears more competitive than ever. However, Boise State’s blend of experience, a top‑50 recruiting class and strategic transfers gives it a distinct edge. If the Broncos can maintain their production levels and integrate newcomers smoothly, they stand poised to challenge for the conference title and perhaps a coveted CFP spot.

How will the coaching staff leverage this depth?

Head coach Andy Avalos will likely lean on veteran leaders like Madsen and Virgin‑Morgan to mentor the influx of freshmen and transfers. Defensive coordinator Spencer Danielson can count on Phelps and Mickey to anchor a unit that already returns 55 percent of its tackles. The coaching staff’s ability to blend seasoned playmakers with fresh talent will be the true test as the season unfolds.