#8Preston Stone

QB·Northwestern·2025 2023

Preston Stone is a Clutch Passer for Northwestern. Preston's 2025 season ranks in the 0th percentile nationally by opponent-adjusted EPA per play across 411 plays — a developing rate for the QB.

What projects, and what doesn't · QBs · held out 2019-2025

How well one season predicts the next, measured on seasons the model never trained on. 1.00 would be perfectly predictable; 0.00 means last year told us nothing.

Usage share (volume)0.46
Beats guessing the QB average by 16%. n=2,421 QB seasons
EPA per play (efficiency)0.05
Not projectable — we do not forecast this. n=1,965 QB seasons
Total EPA (value)0.51
Beats guessing the QB average by 20%. n=1,965 QB seasons

Across all positions, usage carries year to year at 0.47 and efficiency at 0.07. So Preston Stone's projection is a projection of opportunity — how much of the offense he runs through. How well he converts it is something this model does not claim to know a year in advance, and the number above is why.

2025 Production

Passing

222/370 Comp/Att2400 Pass yards17 Pass TD12 INT60.0% Comp %

Rushing

14 Rush yards1 Rush TD49 Carries0.3 Yards/carry

Performance Analysis · 2025 · vs QB peers

Efficiency0
Volume100
Dual-Threat9
Consistency46
Clutch85

Player type

Clutch Passer

Elevates on passing downs — 3rd-and-medium, two-minute drills, and pressure situations are where this QB is best.

3rd-down precisionLate-game valueHigh passing-down EPA

Peer percentiles

Opponent-adjusted EPA (WEPA/play)0th %ile · below avg

Game-to-game consistency46th %ile · average

Key findings

▸Below-average efficiency vs QB peers — value comes through volume, not per-play impact.
▸High-volume role — one of the team's most-used QBs by play share.
▸3 high-impact games (EPA/play > 0.4) this season — elite ceiling.
▸Particularly dangerous on passing downs — efficiency spikes in obvious pass situations.
▸Strong second-half surge — EPA/play improved 0.09 from the first to second half of the season.
▸Peak game: 0.92 EPA/play in Wk 13 vs Minnesota (SP+ 2).

NIL Market Tier· 2025

On3 valuation ↗

Starter

Meaningful starter. Local collective + position-group deals.

Tier is a model estimate based on position, school brand, performance rank, and usage — not a reported deal. NIL deals are private. For a real market valuation, see On3's NIL profile, which factors in social following and actual deal tracking.

Game Log · box score + EPA, week by week

EPA per play · x-axis: weekabove 0 = added points · below = lost

Wk	Opponent	Result	Opp SP+	C/ATT	Pass Yds	Pass TD	INT	QBR	Rush Yds	Rush TD	EPA/play
1	@Tulane	L3-23	6.3	19/36	161	0	4	9.2	-42	0	-0.31
2	vsWestern Illinois	W42-7	—	21/29	245	3	0	53.9	9	0	0.44
3	vsOregon	L14-34	25.9	11/21	135	0	2	7.0	-14	0	-0.09
5	vsUCLA	W17-14	-8.7	12/18	115	1	0	54.1	12	0	-0.04
6	vsUL Monroe	W42-7	-21.6	20/31	262	3	0	89.0	49	0	0.64
7	@Penn State	W22-21	18.1	17/26	163	1	0	73.3	-8	0	0.16
8	vsPurdue	W19-0	-6.1	11/26	132	2	1	54.3	9	0	0.24
9	@Nebraska	L21-28	6.2	15/29	159	0	2	32.7	5	0	0.06
11	@USC	L17-38	16.9	20/30	150	1	0	83.6	-15	0	0.01
12	vsMichigan	L22-24	12.4	13/27	184	0	0	50.4	-11	1	0.15
13	vsMinnesota	W38-35	1.5	25/30	305	2	0	93.7	28	0	0.92
14	@Illinois	L13-20	12.9	19/36	163	1	3	14.6	-6	0	-0.01
20	vsCentral Michigan	W34-7	-8.8	19/31	226	3	0	59.2	-2	0	—

Usage & Situational · Pro

Snap-share proxy

Overall

50.1%

Passing plays

97.4%

Rushing plays

8.7%

Standard downs

43.0%

Passing downs

67.6%

EPA by down type

Standard downs: 0.10
Passing downs: 0.33
Pass / Rush EPA: 0.23 / -0.05

Usage = share of team plays (CFBD has no true snap counts).

Career · rolling EPA, game by game

Per-game EPA5-game avg

EPA per play · 2023 · 12 games

Chart shows per-game EPA (bars) and rolling 5-game average (line). Season breaks marked with dashed lines. Line value = est. points over replacement per game.