Boise State Broncos Football · 2026 Season Preview

Boise State Broncos

A data-backed preview built from the committed 2026 preseason SP+ snapshot, the CFBD schedule, and Bill Connelly's extracted conference preview tables. Every projection traces to a stored payload.

2026 SP+
#39
+6.8 overall · 1st of 8 in the Pac-12
Projection
8.3
Expected wins across 11 games
Most Likely
9-2
31.9% of outcomes
Off / Def
43/46
National ranks · Connelly model: 8.7 avg wins

Executive read

Boise State Broncos is the highest-rated team in the Pac-12 at #39 nationally. The profile is an above average defense (#46) paired with an above average offense (#43). Schedule math puts the season at 8.3 expected wins, against Connelly's independent 8.7. 1 game project as clear underdog spots (Oregon).

Page 2 · Team Quality

What the Ratings Say

Overall SP+
#39
+6.8 rating
Offense
#43
29.9 pts/gm · above average
Defense
#46
22.8 allowed · above average
Special teams
#93
-0.3 value

Unit ranks, 1–138 national

Offense#43
Defense#46
Special teams#93

Bars run left (worst) to right (best): a longer bar is a better national rank. Special-teams ratings are volatile year to year.

2025 resultRecordConfSP+ rank OffDefST
Where they finished9-5 7-2 #64 #55 #60 #91

Sideline

Spencer Danielson — year 4, 24-8 career.

OC: returning
DC: returning

Two versions of BSU: +21.1 in wins -21.8 in losses; 1 single-digit game all season; continuity as good as anyone's

Returning production

57% overall, ranked #45 nationally.

Offense 60% · Defense 55%

149 returning starts, 15 redshirt freshmen.

Two models, one slate. This report's schedule math projects 8.35 wins; Connelly's published model projects 8.7 (5.4 in conference) with a strength-of-schedule rank of #73. His model gives 98.4% odds of six-plus wins and 7.9% of eleven-plus. Two independent methods landing close together is corroboration, not confirmation — they share SP+ as an input.
Page 3 · Schedule Math

Game-by-Game Projection

WeekDateOpponentOpp SP+ Proj marginWin %Tier
Wk 12026-09-05@ Oregon#2 / +28.3-24.05%Upset needed
Wk 22026-09-12vs Memphis#70 / -1.1+10.479%Lean win
Wk 32026-09-20vs South DakotaFCS+34.399%Should win
Wk 42026-09-26@ Western Michigan#95 / -7.2+11.581%Should win
Wk 52026-10-03vs Utah State#97 / -7.7+17.089%Should win
Wk 62026-10-11@ Fresno State#78 / -2.3+6.670%Lean win
Wk 82026-10-24@ Washington State#85 / -5.3+9.677%Lean win
Wk 92026-11-01vs Texas State#89 / -5.9+15.287%Should win
Wk 102026-11-07@ Colorado State#99 / -8.3+12.683%Should win
Wk 112026-11-14vs Oregon State#91 / -6.3+15.688%Should win
Wk 122026-11-22vs San Diego State#71 / -1.3+10.679%Lean win

Opening third

2.63

expected wins across 4 games
Oregon, Memphis, South Dakota, Western Michigan

Middle third

3.23

expected wins across 4 games
Utah State, Fresno State, Washington State, Texas State

Closing third

2.49

expected wins across 3 games
Colorado State, Oregon State, San Diego State

How to read the margin column. It is the SP+ rating gap plus home field, in points — a positive number means the model favors Boise State. Win percentage is that margin mapped through a logistic calibrated so a seven-point favorite wins about 70% of the time.
Page 4 · Outlook

Season Distribution

Expected wins
8.35
across 11 games
Bowl odds
99%
six or more wins
Total mass
100%
distribution sums to 100%
Conference
Pac-12
8 teams rated

Win-total probability

5 wins1.2%
6 wins5.3%
7 wins15.6%
8 wins29.4%
9 wins31.9%
10 wins15.7%
11 wins0.7%

Exact Poisson-binomial over the projected game probabilities. Bars are scaled to the most likely outcome, and the percentages are absolute.

Quarterback

Maddux Madsen

returning starter experienced

Struggled with mistakes and inefficiency in 2025; young receiving corps with only 1 transfer addition; must rebound

Top transfer

JeRico Washington Jr. (CB, from Kennesaw State)
13 PBUs 3.5 TFLs; allowed 39.0 QBR; Conference USA title team; only sophomore; fills BSU's only hole

Program context

Win Margin · 42.2-21.1
Avg score in 9 wins: BSU 42.2 opp 21.1 (+21.1)

Loss Margin · 7.6-29.4
Avg score in 5 losses: opp 29.4 BSU 7.6 (-21.8)

Single Digit Games · 1
Only 1 single-digit game all season; 25-24 comeback over Utah State led by backup Cutforth

Third Down Def · 33.7
33.7% third-down conversion rate allowed (23rd); forced 2nd-longest avg 3rd downs in nation

Riley Gaines Yds · 2157
RBs Dylan Riley and Sire Gaines combined for 2157 yds from scrimmage

DateMatchupWhy it matters
Oct. 10Boise St. at Fresno StateBSU single-digit favorite in only 2 conf games; this is closest; BSU lost 3 straight to Fresno; 1 win in Fresno in 11 years
Page 5 · Conference & Method

Where They Sit in the Pac-12

#TeamSP+ rankRatingOff DefRet prodRet rank
1Boise State#39+6.8#43#4657%#45
2San Diego State#71-1.3#93#6059%#34
3Fresno State#78-2.3#105#4753%#63
4Washington State#85-5.3#110#6142%#109
5Texas State#89-5.9#26#12956%#51
6Oregon State#91-6.3#104#7447%#94
7Utah State#97-7.7#87#10048%#89
8Colorado State#99-8.3#113#7846%#99

Method & Provenance

Sp 2026. Committed preseason SP+ snapshot data/external/cfbd_2026/sp_plus_2026.csv via cfb_model_lab.preseason.load_sp_plus; CFBD /ratings/sp returns zero rows for 2026.

Schedule. data/external/cfbd_2026/schedule_2026.csv (CFBD /games snapshot, regular season only).

Connelly. Bill Connelly ESPN+ 2026 conference previews extracted to data/external/connelly_*_2026/.

Projection Method. SP+ differential plus 2.5-point home field, mapped to win probability by a logistic with scale 8.0 (illustrative scale; not validated for this SP+ snapshot). Win distribution is an exact Poisson-binomial assuming independent games. Not a betting model and not the repo's StackedEnsemble forecast.

Lower Division. FCS/lower-division opponents absent from the FBS SP+ table are assigned a -25.0 rating placeholder.

Not betting advice. No market lines were pulled for this report and no edge is claimed. These are schedule-strength projections from public preseason ratings. If a real market exists, price it independently.