Mason Leak

Physical Profile

Listed at 6-4, 230 lbs. Taller than 54% and heavier than 37% of 2026 Edge Rusher prospects in the SEC Scouts database (169 with a listed size).

Play Style

He is a stand-up or hand-down edge who relies on a quick get-off and power rushes rather than bend or finesse. Against the run he sets a physical edge and uses his length to keep blockers off his frame. As a rusher he wins early with burst and a bull, but his rushes are not yet connected: when the first move is stopped he tends to keep grinding rather than countering. His motor and pursuit show up in backside tackles-for-loss production.

Strengths

• Frame and length: at 6-5 with a lean, muscular build he can carry significantly more weight, the classic ACC defensive-end development body
• Raw power from the lower half: 247 scouts note he can bull offensive tackles and set a firm edge against the run when he plays with good pad level
• Production against good prep competition: BC's signing-day profile credits him with 14 TFL and 7.5 sacks on a 10-0 team that won the NEPSAC Class A title (see the stat caveat in the notes)
• Young for the class and trending up: he was first graded 3-star (89, No. 26 EDGE) and later moved into 4-star territory (247 in-house 90), which is a sign of physical and technical growth

Areas to Improve

• Pass-rush plan: he wins with effort and physical tools but lacks a sequenced counter package (a rip or long-arm off the bull, an inside counter), so plus college tackles will stall him once his first move fails
• Mass and play strength: he must reach roughly 250+ to hold up against double teams and down blocks in the ACC without giving up the edge
• Hand usage and pad level: tall edges tend to play high, and he needs consistent low pads and inside hands to turn his power into leverage against college linemen
• Level of competition: New England prep and Connecticut public-school competition gives limited evidence against Power 4-caliber tackles

College Projection

He is a true freshman on BC's 2026 roster. Given the Eagles' youth up front, the most realistic path is limited or special-teams snaps plus a redshirt under the four-game rule in 2026 while he spends a full year in the strength program. He should be in the defensive-end rotation by 2027 and project as a starting-caliber strong-side end by 2028, if the weight gain arrives on schedule. He is BC's highest-rated 2026 signee, so the staff has a clear development investment in him.

NFL Outlook

He is a long-horizon Day 3 draft candidate whose outlook depends on development. The frame, length and power profile are what NFL teams look for in a 4-3 end or 3-4 outside linebacker, but he would need to add roughly 35+ lbs of functional mass and develop a real counter-rush package. A breakout by his third or fourth college season would put him on draft boards. Without one, he projects as a productive multi-year college starter.

Best Fit

A patient, development-oriented Power 4 program with a strong strength-and-conditioning staff and a four-down front where he can play a hand-down strong-side or 5-technique end. That describes Boston College, where a redshirt-and-build approach fits both him and the program's traditional strength in developing its lines.