Probetrics — Sports Analytics
College Football slate
James Madison Dukes
1-0 · #23 Elo
at
Sat, Sep 19, 10:00 PM ET
Snapdragon Stadium
Spread Total Moneyline

The read

On rating alone James Madison Dukes are 8.7 points better (#23 vs #64 of 240), and SDSU add 0.0 for home field. The clearest mismatch is the passing game: JMU passing ranks #51, SDSU defends it at #2; the other way SDSU #126 into JMU's #15.

Who has the edge

Rating
Clear edge
JMU
JMU rated 8.7 points better on Elo (#64 vs #23).
Home & rest
Even
SDSU gets 0.0 points for home field.
Passing game
Clear edge
JMU
JMU passing ranks #51, SDSU defends it at #2; the other way SDSU #126 into JMU's #15.
context · not in the margin
Rushing game
Slight edge
JMU
JMU rushing ranks #22, SDSU defends it at #43; the other way SDSU #43 into JMU's #14.
context · not in the margin
Third down & red zone
Clear edge
JMU
JMU third-down conversion ranks #17, SDSU defends it at #14; the other way SDSU #129 into JMU's #6.
context · not in the margin
Form (last 5)
Clear edge
SDSU
SDSU +33.0 per game over the last five, JMU +7.0.
context · not in the margin
Market
not priced
No line yet.
context · not in the margin

The margin, factor by factor

James Madison DukesSan Diego State Aztecs
1706 Elo · #23
RatingThe Elo gap in points — the model's core read on who is better, before the situational pieces below.
JMU +8.7 pts
1550 Elo · #64
road
Home field
not priced
home
Rest
even
+0.0 pts vs SDSU D
Offense vs defenseEach offense's scoring rating against the other defense's — what drives the model total. Shown as an edge, though the winner call runs on Elo.
JMU +8.2 pts
−8.1 pts vs JMU D
W · +7.0
Form (last 5)Average margin over the last five games. Already inside the ratings — listed so you can see when recent form and the rating disagree.
SDSU +13.0 pts
W · +33.0
MarketThe consensus spread, read as points. Compare with the model margin above it.
not priced

Bars are in points toward the favored side. Blue factors are inside the model's margin; grey ones are context it does not add on top (form and offense/defense are already in the ratings; injuries beyond the quarterback are not priced).

Dissect the matchup

CollegeFootballData, garbage time excluded · 2025 season (last season until three games are in)

Biggest mismatches

  • JMU defense (#6 third-down conversion allowed) against a SDSU offense ranked #129
  • JMU defense (#11 passing-down ppa allowed) against a SDSU offense ranked #131
  • JMU defense (#2 pass success rate allowed) against a SDSU offense ranked #120
  • JMU defense (#3 completion % allowed) against a SDSU offense ranked #116
  • JMU defense (#15 passing ppa / play allowed) against a SDSU offense ranked #126

A mismatch is a rank gap of at least a fifth of the league between an offense and the defense it faces on the same measure. Descriptive rows (pass rate, pace, direction) are shown for reading the game, not ranked. ▲▼ mark where the last three games sit clearly above or below the season number, in the direction that helps that side.

James Madison Dukes offense vs San Diego State Aztecs defense

ranks of 135
JMU offSDSU defEdge
Identity
Pass rate / Pass rate faced41%50%·
Standard-down shareShare of plays on standard downs (staying ahead of the chains).69%65%·
Plays / game6161·
Possession / game34:1329:43·
Passing
Passing PPA / playPredicted points added per pass play (CFBD).+0.29#51−0.04#2SDSU
Pass success rate42%#6033%#4SDSU
Pass explosivenessPPA on successful pass plays — how big the wins are.1.70#231.43#16·
Yards / pass attempt7.7#465.1#1SDSU
Completion %58%#10553%#5SDSU
Interception rate / Interceptions forced3.6%#1072.4%#66SDSU
Rushing
Rushing PPA / play+0.21#22+0.06#43·
Rush success rate48%#1738%#25·
Rush explosiveness1.04#440.96#69·
Line yards / rushYards credited to the offensive line (first 4 yards weighted). Defense column: allowed.3.17#263.04#98JMU
Stuff rate / Stuff rate forcedRushes stopped at or behind the line.18%#6416%#108JMU
Power successConversion rate on 3rd/4th and ≤2, or goal-to-go from the 2.77%#3663%#15·
Yards / rush5.7#63.8#44JMU
Situational
Standard-down PPA+0.20#26−0.05#8·
Passing-down PPAObvious passing situations (2nd & 8+, 3rd/4th & 5+).+0.23#96+0.06#3SDSU
Third-down conversion47%#1733%#14·
Points / scoring opportunityPoints per drive that reaches the opponent's 40.3.98#432.42#3SDSU
Havoc rate faced / Havoc rateTFLs, forced fumbles, interceptions and passes defensed per play.13.2%#3215.2%#78JMU
Turnovers / game / Takeaways / game1.14#491.38#54·

San Diego State Aztecs offense vs James Madison Dukes defense

ranks of 135
SDSU offJMU defEdge
Identity
Pass rate / Pass rate faced37%52%·
Standard-down shareShare of plays on standard downs (staying ahead of the chains).70%61%·
Plays / game5952·
Possession / game30:1725:47·
Passing
Passing PPA / playPredicted points added per pass play (CFBD).+0.09#126+0.10#15JMU
Pass success rate36%#12030%#2JMU
Pass explosivenessPPA on successful pass plays — how big the wins are.1.71#201.78#129SDSU
Yards / pass attempt7.1#746.1#15JMU
Completion %57%#11651%#3JMU
Interception rate / Interceptions forced5.2%#1312.4%#67JMU
Rushing
Rushing PPA / play+0.17#43−0.00#14JMU
Rush success rate46%#4033%#6JMU
Rush explosiveness0.90#941.07#116·
Line yards / rushYards credited to the offensive line (first 4 yards weighted). Defense column: allowed.3.34#102.32#5·
Stuff rate / Stuff rate forcedRushes stopped at or behind the line.14%#1426%#6·
Power successConversion rate on 3rd/4th and ≤2, or goal-to-go from the 2.80%#1657%#4·
Yards / rush4.8#372.8#5JMU
Situational
Standard-down PPA+0.16#40−0.02#17·
Passing-down PPAObvious passing situations (2nd & 8+, 3rd/4th & 5+).+0.04#131+0.12#11JMU
Third-down conversion31%#12929%#6JMU
Points / scoring opportunityPoints per drive that reaches the opponent's 40.3.51#903.41#47JMU
Havoc rate faced / Havoc rateTFLs, forced fumbles, interceptions and passes defensed per play.12.9%#2719.9%#7·
Turnovers / game / Takeaways / game1.15#531.21#78·

Season

JMUSDSU
1-0Record1-0
20.0Points for / game53.0
13.0Points against / game20.0
1-0 / 0-0Home / road1-0 / 0-0
1-0Against the spread0-1
0-1Over / underOvers–unders in this team's games. A tendency, not a lean.1-0
WLast 5W

Power ratings

JMUSDSU
1706Elo1550
#23 of 240Rank#64 of 240
+6.8Offense ratingPoints per game above league average scored, opponent-adjusted.+0.4
+8.5Defense ratingPoints per game below league average allowed, opponent-adjusted. Positive is good.+6.7
1370Strength of scheduleMean Elo of opponents faced this season.

Elo drives the winner call. Offense/defense ratings drive the total.

Advanced

JMUSDSU
−0.9SP+ (this season)Bill Connelly's SP+ rating, points above average.
0.208Offense PPA / playPredicted points added per play, garbage time excluded (CFBD).0.129
0.033Defense PPA / playPPA allowed per play — lower is better.-0.013
45% / 31%Success rate (off / def)42% / 35%
1.30 / 1.43Explosiveness (off / def)1.18 / 1.18
588Talent composite247Sports team talent composite for the current roster.
8%Returning production

Advanced stats are from 2025 until this season has about three games. Source: CollegeFootballData.

Head to head

No meetings in our history.

How the margin was built

Rating gap
JMU +8.7 pts
Home field
SDSU +— pts
Rest
Even
Weather / roof
— pts on the total
Model margin
Model total

Market

Spread
Total
Moneyline

Per-book prices appear once the multi-book feed has this game (about a week out).

Informational only. Winner probabilities are backtested and calibrated; spread and total calls are tracked leans. 21+, 1-800-GAMBLER.