#83

Isaac Rex

Junior tight end for BYU. 2023: 34 catches, 422 receiving yards, 3 TD.

TE · BYU · Jr. · #83

6′6″ · 255 lb · San Clemente, CA

CFB Index 60 · #35 of 137 TEsMedium-low confidenceBYU 2023 alumnus

Recruiting

3★

TE recruit

No. 1661 nationally · Signed with BYU

No college snaps yet.

His career numbers, season by season

The story

3 tight end for BYU. 2023: 34 catches, 422 receiving yards, 3 TD.

Signed as a 3-star recruit to BYU in 2017.

His career, year by year

How it ended

Five seasons at BYU, 1,385 receiving yards — his college career is complete.

His career

He barely played early on. Then he did not come off the field.

2017

Signed with BYU3-star out of San Clemente

Career arc

Recruit

★★★

#1661 national

CFB

College

BYU

2019–2023

NFL

NFL Draft

—

Not drafted

Coaching lineage · 2019–2023

1 coach

2019–2023

Kalani Sitake

BYU

Played his entire career under Kalani Sitake.

2023 snapshot

Season context · Team result + system

5 seasons under Kalani Sitake — 41-22 over that span.

2019BYU7-6HC: Kalani Sitake · Balanced

2020BYU11-1HC: Kalani Sitake · Balanced

2021BYU10-3HC: Kalani Sitake · Run-leaning

2022BYU8-5HC: Kalani Sitake · Balanced

2023BYU5-7HC: Kalani Sitake · Balanced

Where this profile ranks vs the TE cohort

Box-score + play-by-play EPA percentiles

60Quality starter #35 of 137?

Medium-low confidence11 metrics · season cumulative

Elite: long catch (95th percentile). Strength: rec yards (84th percentile). Concern: catch rate (11th percentile).

Real play-by-play efficiency

Yards / catch#263 / 639 · 59th pct

13.0

TD rate#279 / 639 · 56th pct

6.5%

Explosive rate#416 / 639 · 35th pct

10.9%

EPA / target#490 / 639 · 23rd pct

0.51

Catch rate#570 / 639 · 11th pct

67.4%

Box-score rates (6)

Long catch#8 / 160 · 95th pct

Rec yards#25 / 160 · 84th pct

422

Receptions#30 / 160 · 80th pct

Yards / catch#56 / 160 · 65th pct

12.4

Rec TDs#49 / 160 · 62nd pct

Fumbles lost#18 / 35 · 27th pct

Season trend

Last seasonThis season

EPA / target

77th → 23rd percentile

Explosive rate

94th → 35th percentile

Catch rate

56th → 11th percentile

TD rate

99th → 56th percentile

Yards / catch

75th → 59th percentile

Percentiles versus same-position peers with enough snaps this season. Most bars are box-score rates; EPA / success-rate bars are computed from real play-by-play (offense only — no defensive EPA model exists yet).

Splits & context

Splits · Per-game

2023 season · 12 games

Home/Road · Season halves

Home vs Road

	REC/g	YDS/g	YPR	TD/g
Home6g	2.7	41.3	14.0	0.5
Road6g	3.0	29.0	7.1	0.0

First half vs Second half

	REC/g	YDS/g	YPR	TD/g
Weeks 1-76g	3.2	45.8	12.6	0.2
Weeks 8+6g	2.5	24.5	8.6	0.3

Supporting cast · Scheme

Staff and system around the player

2026 season

Head Coach

Kalani Sitake

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

Awards

Player standing · 2023

Rotational

Earning real snaps in the rotation without a starting job.

Recognition

Roster2-deepStarterRecognizedEliteApex

Production · CFB Index Score

60 · #35 of 137 TEs

Three-star recruit. Now #35 at the position.

Career stats

Season	Team
2023	BYU	34	422	12.4	3	--
2022	BYU	22	320	14.5	6	--
2021	BYU	18	191	10.6	3	--
2020	BYU	37	429	11.6	12	--
2019	BYU	1	23	23.0	0	--
Career		112	1,385	12.4	24	--

Signature game

SIGNATURE GAME · Week 2 · 2023

W 41–16

vs Southern Utah

4 rec · 112 yds · 1 TD

Dominant 25-point win at home against Southern Utah.

With K. Slovis — 348 yds · 4 TD · 1 INT · QBR 81.7 · 6 rush yds (1 car) · 1 TD · R. Rehkow — 47 AVG · 2 IN 20 · 64 LONG

Signature plays

Signature plays · top plays by |EPA|

The plays that mattered most

fact

Week 2 · Southern Utah · 2&10 · Q2 · EPA +4.67Kedon Slovis pass complete to Isaac Rex for 65 yds to the SUU 5 for a 1ST down
Week 12 · Oklahoma · 4&2 · Q2 · EPA +3.06Jake Retzlaff pass complete to Isaac Rex for 13 yds to the OU 44 for a 1ST down
Week 11 · Iowa State · 1&10 · Q3 · EPA +2.72Parker Kingston pass complete to Isaac Rex for 26 yds for a TD (Two-Point Conversion failed)
Week 2 · Southern Utah · 1&10 · Q1 · EPA +2.62Kedon Slovis pass complete to Isaac Rex for 20 yds for a TD (Will Ferrin PAT MISSED)
Week 4 · Kansas · 4&2 · Q2 · EPA +2.41Kedon Slovis pass complete to Isaac Rex for 16 yds to the KU 24 for a 1ST down
Week 2 · Southern Utah · 3&3 · Q1 · EPA +2.35Kedon Slovis pass complete to Isaac Rex for 16 yds to the SUU 38 for a 1ST down
Week 3 · Arkansas · 3&5 · Q2 · EPA +2.17Kedon Slovis pass complete to Isaac Rex for 8 yds to the ARK 45 for a 1ST down
Week 13 · Oklahoma State · 3&8 · Q4 · EPA +1.96Jake Retzlaff pass complete to Isaac Rex for 10 yds to the BYU 37 for a 1ST down
Week 12 · Oklahoma · 2&1 · Q2 · EPA +1.90Jake Retzlaff pass complete to Isaac Rex for 1 yd for a TD (Will Ferrin KICK)
Week 3 · Arkansas · 2&9 · Q2 · EPA +1.60Kedon Slovis pass complete to Isaac Rex for 26 yds to the ARK 4 for a 1ST down

Game log

Game log · Week-by-week

2023 season · 12 games

Box score · CFBD

Wk	Opp	REC	YDS	AVG	TD	LONG	Note
Wk 1	W 14-0vs Sam Houston	2	15	7.5	0	12
Wk 2	W 41-16vs Southern Utah	4	112	28.0	1	65	Season-high 112 yds
Wk 3	W 38-31@ Arkansas	4	57	14.3	0	26
Wk 4	L 27-38@ Kansas	7	76	10.9	0	16
Wk 5	W 35-27vs Cincinnati	1	14	14.0	0	14
Wk 7	L 11-44@ TCU	1	1	1.0	0	1
Wk 8	W 27-14vs Texas Tech	4	41	10.3	0	27
Wk 9	L 6-35@ Texas	2	16	8.0	0	17
Wk 10	L 7-37@ West Virginia	1	1	1.0	0	1
Wk 11	L 13-45vs Iowa State	3	52	17.3	1	26
Wk 12	L 24-31vs Oklahoma	2	14	7.0	1	13
Wk 13	L 34-40@ Oklahoma State	3	23	7.7	0	10
Total		34	422	10.6	3	65

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