Ty Dieffenbach: Injury, Height, High School, 247 Ranking, Age and Stats

Ty Dieffenbach is an American college football quarterback who plays for the UCLA Bruins. He has attracted attention during the 2026 NCAA football season after earning an opportunity to lead UCLA following Nico Iamaleava’s injury. Dieffenbach previously played for Pittsburgh and Cal Poly before joining the Bruins.

Standing 6 feet 6 inches tall, Dieffenbach brings impressive size and passing ability to the quarterback position. His journey through college football has included limited playing opportunities, injuries and a breakthrough season.

Here is everything to know about Ty Dieffenbach, including his latest injury update, height, age, high school career, 247 recruiting profile and college football statistics.

Who Is Ty Dieffenbach?

Ty Dieffenbach is a quarterback for the UCLA Bruins. He wears jersey number 14 and joined UCLA ahead of the 2026 season after spending the previous season at Cal Poly.

Before transferring to UCLA, he played college football at the University of Pittsburgh. However, he did not appear in a game during his first two seasons with the Panthers.

His opportunity arrived at Cal Poly in 2025, where he became the starting quarterback. His performances helped him earn another opportunity at the FBS level with UCLA.

Dieffenbach eventually became an important part of UCLA’s 2026 campaign, stepping into the starting role after Nico Iamaleava suffered a season-ending knee injury.

Ty Dieffenbach Injury Update

Ty Dieffenbach suffered a left shoulder injury during UCLA’s game against Illinois on November 13, 2026.

The injury happened late in the second quarter when he attempted to avoid defensive pressure. After throwing the ball away, he landed hard on his left shoulder and remained on the field for several minutes.

Madden Iamaleava initially replaced him at quarterback. However, Dieffenbach later returned to the sideline and re-entered the game during the third quarter, according to subsequent game coverage.

The injury attracted attention because UCLA had already lost its starting quarterback, Nico Iamaleava, to a season-ending knee injury earlier in October.

Although Dieffenbach returned against Illinois, his shoulder injury remains an important storyline to monitor. A confirmed long-term diagnosis or additional recovery timetable should not be assumed without an official update.

How Tall Is Ty Dieffenbach?

Ty Dieffenbach is listed at 6 feet 6 inches (1.98 metres) tall and weighs approximately 227 pounds (103 kg).

His height gives him a natural advantage as a pocket passer. It helps him see over defensive linemen and survey the field when looking for open receivers.

His physical measurements are:

Ty Dieffenbach High School Career

Dieffenbach attended Agoura High School in Agoura Hills, California.

Interestingly, he did not begin his high school football career as a quarterback. He initially played wide receiver before switching positions during his sophomore season.

The transition proved successful. During three varsity seasons, he recorded 4,153 passing yards and 48 touchdowns.

His junior season was particularly impressive. He threw for 2,669 yards and 34 touchdowns, earning all-state, all-county and all-league recognition.

He also received Los Angeles Daily News All-Area honours.

However, his senior season was affected by a knee injury suffered during the opening week. He finished that season with 867 passing yards and nine touchdowns.

Despite the difficult final high school season, his earlier performances attracted college interest, eventually leading to his commitment to Pittsburgh.

Ty Dieffenbach 247 Recruiting Profile

Ty Dieffenbach attracted attention from college recruiters because of his size, arm talent and high school production.

According to his Pittsburgh recruiting biography, he was ranked No. 95 among California prospects in his recruiting class by ESPN.

His recruiting profile also included interest in his ability to transition from wide receiver to quarterback.

He committed to the University of Pittsburgh and enrolled in January 2023 after graduating early from Agoura High School.

It is important to distinguish recruiting services when discussing his 247Sports ranking. A verified 247Sports-specific numerical ranking should not be confused with his ESPN state ranking.

How Old Is Ty Dieffenbach?

Ty Dieffenbach is 21 years old in November 2026. His reported date of birth is June 8, 2005.

He entered college football in 2023 and has experienced a different development path from many quarterbacks in his recruiting class.

After redshirting at Pittsburgh and spending a season at Cal Poly, he earned an opportunity to compete at UCLA.

His development demonstrates how transfers and additional playing experience can create new opportunities for college football players.

Ty Dieffenbach College Career

Dieffenbach’s college football career has included three programmes: Pittsburgh, Cal Poly and UCLA.

Pittsburgh (2023–2024)

He joined Pittsburgh in January 2023. During his first season, he redshirted and did not appear in a game. He also did not record game action during the 2024 season.

Cal Poly (2025)

His transfer to Cal Poly gave him the opportunity to become a starting quarterback.

He played in 11 games and completed 92 of 162 passes for 1,305 yards, nine touchdowns and nine interceptions. He also contributed 321 rushing yards and four rushing touchdowns.

UCLA (2026)

Dieffenbach joined UCLA for the 2026 season. Initially serving as a backup, he earned the starting opportunity after Iamaleava’s injury.

His performances against teams including Oregon, Wisconsin and Minnesota helped establish him as an important quarterback for the Bruins.

Ty Dieffenbach Stats

Dieffenbach’s statistics show his development as a passer and his ability to contribute as a runner.

2025 Cal Poly Statistics

2026 UCLA Statistics

Through five games in the statistical record available through November 12, 2026:

These numbers highlight his passing production during his first season with UCLA. His 986 passing yards and six touchdowns also demonstrate his growing importance to the Bruins’ offence.

Final Thoughts

Ty Dieffenbach has taken an unconventional route to becoming a starting quarterback at UCLA. After beginning his career at Pittsburgh, he found playing opportunities at Cal Poly before earning a bigger role with the Bruins.

His 6-foot-6 frame, high school production and 2026 performances have made him an interesting college football player to follow. His left shoulder injury against Illinois is another important development, although his return during the game provided an encouraging update.

As UCLA continues its season, Dieffenbach’s health and performances will remain important to the team’s success.