Scouting Report: Anthony Castonzo

Written by Chad Davis on March 30, 2011

Anthony Castonzo


Position: OT School: Boston College
Height: 6’7" Weight: 311 lbs
Class: Senior 40 time: 5.23
All-Star Game: Senior Bowl Team Captain: 2010

Draft Projection:

Mid 1st Round


Anthony Castonzo


Anthony Castonzo is an extremely solid all-around, experienced offensive tackle who will be ready to start right away in the NFL on the left side. He has played and started 54 games in his career at Boston College, including 40 starts as a left tackle. With that experience you will find that Castonzo is a technically sound player lacking any extremely major flaws. Lower body strength is an issue and will need to improve with time. A high school tight end, Castonzo is a fluid looking athlete on film and has natural knee and waist bend rare for a player of his height. Castonzo has all the talent to start at left tackle in the NFL, and while there might not be All-Pro potential here, he should be an anchor on an offensive line for years to come. Look for him to be off the board somewhere in the middle of the first round.


Pass Blocking

Perhaps Castonzo’s best attribute is his pass blocking ability. He is quick off the snap, light on his feet with good lateral movement. He gets good depth on his kick slide and can mirror as well as anyone. He is technically sound with good hand placement allowing him to control defenders. He has improved his strength at the point of attack over time to the point where it’s no longer a huge issue. Castonzo lacks ideal lower body strength, however, and can lose anchor quite frequently against power rushers. Lack of versatility is also an issue, as Castonzo is not suited to play right tackle or any guard position. He can stand too tall at times, allowing the defender to push him off balance and collapse the pocket.


Run Blocking

Castonzo lacks the power in his frame to be a drive blocker, and combined with his great athleticism it is apparent that his talents may be best suited for a zone blocking scheme. He is an effective cut blocker and being a good athlete allows him to get on the ground and cut defenders with ease. He has above average speed and can get to the second level without problem. Castonzo tends to struggle with sustaining blocks in the run game. He does not flash the ability to outright redirect a defender. His high effort and motor are apparent. He sheds defenders well at the second level, and has above average ability to change direction and improvise when needed. When blocking down at the line of scrimmage he is fluid and quick, but not powerful. Castonzo is a smart, heady player.


Anthony Castonzo


Castonzo is an intelligent player with the type of experience that NFL teams love. He reads and understands stunts and blitzes quite well. He is a leader on the field. He doesn’t look lost or misguided in the run game. He understands how to play in space. Castonzo has a high football IQ.


Hand Placement

Castonzo is sound fundamentally and understands hand placement. He does a nice job of gaining leverage. His improved upper body strength has made his initial punch more effective, and he does a good job, most times, at keeping his hands on outside leverage against speed rushers. Castonzo might be the best technician at left tackle in this class.



Castonzo is extremely mobile and active in all aspects of blocking. He possesses fluid hips and natural athleticism. He has great initial quickness, short-area quickness, and above average straight line speed. He always seems in control of his body and movements.



Castonzo possesses nice footwork as is to be expected from a player with his level of experience. He has a naturally wide base and gets great initial depth on his kick slide in pass protection. When blocking down in the run game, he keeps his feet churning and is effective even without significant lower body strength. Castonzo’s footwork is usually very smooth and not choppy.


Anthony Castonzo

Additional Information

Castonzo holds the Boston College record for career starts with 54. He was named a National Scholar Athlete by the National Football Foundations and was a finalist for the William V. Campbell trophy, commonly known as the “Academic Heisman.” He played on season of high school football at a military academy. Castonzo also participated in basketball and track and field in high school.



2010: Played and started in all 13 games.
2009: Played and started in all 13 games.
2008: Played and started in all 14 games.
2007: Played and started in all 14 games at right tackle.



Castonzo is biochemistry major.


Awards & Honors

2010: Associated Press Third Team All-American, All-ACC first team honoree…National Football Foundation National Scholar-Athlete…finalist for the William V. Campbell Trophy and the Lowe’s Senior CLASS Award.
2009: All-America honorable mention…All-ACC first-team selection and named to the ESPN The Magazine Academic District 1 first team…recipient of The Anne and Gerald B. Healy Scholarship for Academic Excellence.
2008: College Football News All-Sophomore first-team selection…All-ACC second-team selection.
2007: Named to the Sporting News 2007 All-ACC Freshman Team.



Prospect Video Clips




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Chad Davis

Chad Davis is an avid draft fan who has been writing and evaluating for Draft Breakdown since September of 2010. A native of the Pacific Northwest, he is a Seattle Seahawks season ticket holder, and part-time contributor to the Seahawks blog He is a member of the Football Writers Association of America.

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