#55

Isaiah McDuffie

Former linebacker at Boston College. 2020: 107 tackles, 6.5 tackles for loss, 3 sacks.

LB · Boston College · Jr. · #55

6′1″ · 224 lb · Buffalo, NY

All-ConferenceGreen Bay — drafted 2021, Rd 6, Pick 36, #220 overall

Recruiting

3★

OLB recruit

No. 1079 nationally · Signed with Boston College

Statement game12 tackles · 3 TFL · 2 sacksvs Texas State (FBS) · W 24-21

Top 1% tackles game since 2021.

His career numbers, season by season

The story

Former linebacker at Boston College. 2020: 107 tackles, 6.5 tackles for loss, 3 sacks.

Signed as a 3-star recruit to Boston College in 2017.
Drafted round 6 by the Green Bay in 2021.

His career, year by year

How it ended

Four seasons at Boston College, 231 tackles — drafted at #220 overall by Green Bay.

His career

Nobody recruited him. He earned the honors anyway.

20174 games

Signed with Boston College3-star out of Bennett

202011 games

The role got bigger.

All-ACCsecond

2021

Drafted by Green Bayround 6, pick 220

Career arc

Recruit

★★★

#1079 national

CFB

College

Boston College

2017–2020

NFL

NFL Draft

R6 · #220

Green Bay · 2021

Trophy case · Confirmed honors

What the selectors said

1 honor

🎖

ALL-ACC · 2ND TEAM

All-ACC 2nd team (2020)

Coaching lineage · 2017–2020

2 coaches

2017–2019

Steve Addazio

Boston College

2020

Jeff Hafley

Boston College

era →

Coaching transition mid-career: Steve Addazio → Jeff Hafley. Worth noting in scheme + development context.

Where He Ended Up · NFL

Green BayEntering 6th NFL season

#220Rd 6 · Pick 36

Green BayEntering 6th NFL season

View college career stats ↓

2020 snapshot

Season context · Team result + system

2017Boston College7-6HC: Steve Addazio · Run-heavy, fast tempo

2018Boston College7-5HC: Steve Addazio · Run-heavy

2019Boston College6-7HC: Steve Addazio · Run-heavy

2020Boston College6-5HC: Jeff Hafley · Balanced

Where this defender ranks vs the field

Box-score production percentiles vs the position cohort

8 metrics · season cumulative

Elite: tackles (100th percentile). Strength: solo tackles (99th percentile). Concern: passes defended (21st percentile).

Box-score production (8)

Tackles#5 / 2211 · 100th pct

107

Solo tackles#14 / 2211 · 99th pct

QB hurries#85 / 2211 · 95th pct

Sacks#183 / 2211 · 90th pct

3.0

Tackles for loss#225 / 2211 · 89th pct

6.5

Forced fumbles#39 / 497 · 46th pct

Interceptions#180 / 568 · 34th pct

Passes defended#1276 / 2211 · 21st pct

Percentiles are versus same-position peers with enough snaps this season, based on box-score production. There are no play-by-play efficiency bars here: CFBD's play-value model credits offensive players only, so no defensive EPA exists to rank.

Splits & context

Splits · Per-game

2020 season · 11 games

Home/Road · Season halves

Home vs Road

	TKL/g	TFL/g	SACK/g	PD/g
Home6g	10.8	0.9	0.5	0.0
Road5g	8.4	0.2	0.0	0.0

First half vs Second half

	TKL/g	TFL/g	SACK/g	PD/g
Weeks 1-75g	10.4	0.9	0.6	0.0
Weeks 8+6g	9.2	0.3	0.0	0.0

Supporting cast · Scheme

Staff and system around the player

2026 season

Head Coach

Bill O'Brien

Scheme reads (pass share, tempo, sack rate) need at least 3 team games — 2 games in so far.

Awards

Player standing · 2020

All-Conference

Picked for an all-conference team by at least one selector.

Roster2-deepStarterRecognizedEliteApex

Career stats

Season	Team
2020	Boston College	107	54	6.5	3.0	--	1	--
2019	Boston College	30	24	3.5	2.0	--	--	--
2018	Boston College	86	48	5.5	3.5	2	--	--
2017	Boston College	8	1	0.0	0.0	1	--	--
Career		231	127	15.5	8.5	3	1	--

Signature game

SIGNATURE GAME · Week 13 · 2020

W 34–27

vs Louisville

7 TOT · 3 SOLO

A wire-to-wire battle — won by 7 at home.

With T. Levy — 23 rush yds (12 car) · P. Jurkovec — 203 yds · 0 TD · 0 INT · 20 rush yds (5 car)

Game log

Game log · Week-by-week

2020 season · 11 games

Box score · CFBD

Wk	Opp	TKL	SOLO	TFL	SACK	INT	Note
Wk 3	W 26-6@ Duke	6	3	0.0	0.0	1
Wk 4	W 24-21vs Texas State	12	9	3.0	2.0	—	2 sacks
Wk 5	L 22-26vs North Carolina	12	9	1.0	1.0	—
Wk 6	W 31-30vs Pittsburgh	11	7	0.5	0.0	—
Wk 7	L 14-40@ Virginia Tech	11	2	0.0	0.0	—
Wk 8	W 48-27vs Georgia Tech	7	4	1.0	0.0	—
Wk 9	L 28-34@ Clemson	10	6	1.0	0.0	—
Wk 10	W 16-13@ Syracuse	2	1	0.0	0.0	—
Wk 11	L 31-45vs Notre Dame	16	8	0.0	0.0	—	Season-high 16 tackles
Wk 13	W 34-27vs Louisville	7	3	0.0	0.0	—
Wk 14	L 32-43@ Virginia	13	2	0.0	0.0	—
Total		107	54	6.5	3.0	1

Stats from CFBD · ESPN · fan discourse. Every figure computed from source tables — not invented. Methodology

20174 games

202011 games

2021

2020 snapshot

Splits & context

Awards

All-Conference

Career stats

Signature game

Game log

How he plays