2026 Fantasy Football Lab is Open for Business
The GSPI (Game Script Predictive Index) projects passing and rushing levels to support team and player prop understanding.
Update since the slate report: TreVeyon Henderson is out (ankle) for tonight’s opener. Rhamondre Stevenson inherits bulk Patriots RB snaps. Lines are otherwise stable around the same consensus board.
for deeper info see this article
https://www.scienceoffantasyfootball.com/week-1-wedthurs-game-metrics
SEA −3.5 / 44.5 · Implied 24.0–20.5 · Win prob ~60/40
Script: Seattle Mild Positive / New England Mild Negative · Confidence Medium · Weather Neutral
Side
Rush
Pass
SEA
×1.10
×0.94
NE
×0.92
×1.08
How it plays: One-score favorite at home in a rematch. Seattle is more likely to stay on schedule and lean run in the second half if it holds the lead. New England is more likely to chase if it trails after Q1.
Personnel: Darnold / JSN expected. Maye / A.J. Brown expected. Henderson Out — Stevenson bulk, Corey Kiner as the change-of-pace.
Prop lean: Stevenson volume up. Maye attempts can rise if NE is trailing. JSN holds WR1 equity even in a Mild Positive script.
LAR −3.5 / 48.5 · Implied 26.0–22.5 · Win prob ~60/40
Script: Rams Mild Positive / 49ers Mild Negative · Confidence Medium · Weather Neutral (cool, open air)
Side
Rush
Pass
LAR
×1.10
×0.94
SF
×0.92
×1.08
How it plays: Neutral-site division game with a healthy total. Rams favored to control late downs. 49ers more pass-leaning if they trail Stafford.
Personnel: Stafford / Nacua expected. Purdy / CMC expected. Kittle questionable.
Prop lean: CMC receptions stay live even in a Mild Negative team script. Stafford passing volume can compress if LA leads.
CHI −3 / 47.5 · Implied 25.25–22.25 · Win prob ~58/42
Script: Bears Mild Positive / Panthers Mild Negative · Confidence Medium · Weather Neutral
Side
Rush
Pass
CHI
×1.10
×0.94
CAR
×0.92
×1.08
How it plays: Road favorite. Ben Johnson’s opener should stay balanced if Chicago leads. Carolina is the pass-catch-up side.
Personnel: Caleb Williams / Swift / Burden expected. Bryce Young / Hubbard expected.
Prop lean: Swift early-down work if CHI leads. Young attempts rise if CAR trails. Burden is a role-first WR, not a script fade.
CIN −3.5 / 50.5 · Implied 27.0–23.5 · Win prob ~60/40
Script: Bengals Mild Positive / Buccaneers Mild Negative · Confidence Medium · Weather Neutral
Side
Rush
Pass
CIN
×1.08
×0.96
TB
×0.94
×1.06
How it plays: Highest total on the board. Script is only Mild because both QBs can keep this in a shootout. Cincinnati still gets the late-run lean if it leads.
Personnel: Burrow / Chase / Chase Brown expected. Mayfield / WR1 expected.
Prop lean: Chase and Burrow stay volume-alive because the total is 50.5. Brown’s rushing overs need CIN to stay ahead. Mayfield attempts are the TB script play.
BAL −3.5 / 47.5 · Implied 25.5–22.0 · Win prob ~60/40
Script: Ravens Mild Positive / Colts Mild Negative · Confidence Medium · Weather Neutral
Side
Rush
Pass
BAL
×1.12
×0.92
IND
×0.92
×1.08
How it plays: Baltimore’s identity is the rush lean when ahead. Indianapolis is the pass-catch-up side with Jones back from Achilles (mobility discounted).
Personnel: Jackson / Henry / Flowers expected. Jones / Taylor / Pierce expected. Richardson is the named backup.
Prop lean: Henry carries if BAL leads. Taylor still gets work; Jones passing volume rises if IND trails. Do not pay Jones rushing props at full pre-injury rate.
BUF −1.5 / 44.5 · Implied 23.0–21.5 · Win prob ~53/47
Script: Neutral / Neutral (slight Buffalo edge) · Confidence Low · Weather Neutral
Side
Rush
Pass
HOU
×0.98
×1.02
BUF
×1.04
×0.98
How it plays: Near pick’em, modest total. Do not force a script. Role and matchup beat GSPI here.
Personnel: Allen / Cook expected. Stroud / Collins / Montgomery expected.
Prop lean: Cook and Allen are role-first. Nico Collins is the cleanest pass-catcher regardless of script.
DET −7 / 49.5 · Implied 28.25–21.25 · Win prob ~70/30
Script: Lions Strong Positive / Saints Strong Negative · Confidence High · Weather Neutral (dome)
Side
Rush
Pass
DET
×1.18
×0.86
NO
×0.82
×1.16
How it plays: Clearest two-score home environment on Sunday afternoon. Detroit should run more after Q1 if the lead holds. New Orleans is a deficit passing game and is without Kamara.
Personnel: Goff / Gibbs / St. Brown / LaPorta expected. Shough expected. Kamara DNP — committee inherits RB snaps.
Prop lean: Gibbs is the week’s strongest RB script. Goff passing yards can undershoot a 28-point implied if DET sits on the lead. Olave routes/targets are the Saints script play.
JAX −8.5 / 40.5 · Implied 24.5–16.0 · Win prob ~73/27
Script: Jaguars Strong Positive / Browns Strong Negative · Confidence High · Weather Heat
Side
Rush
Pass
JAX
×1.20
×0.84
CLE
×0.80
×1.18
How it plays: Largest AFC spread, lowest viable scoring environment for Cleveland. Jacksonville should lean run once ahead. Heat is a late-pace trim, not a script flip.
Personnel: Lawrence expected. Watson expected.
Prop lean: Lawrence is a TD/efficiency play more than a 40-attempt play. Cleveland pass-catchers get volume only if the game tilts early. Discount late rushing if heat shortens the fourth quarter.
PIT −3.5 / 41.5 · Implied 22.5–19.0 · Win prob ~60/40
Script: Steelers Mild Positive / Falcons Mild Negative · Confidence Medium · Weather Neutral
Side
Rush
Pass
PIT
×1.10
×0.94
ATL
×0.92
×1.08
How it plays: Low total, home favorite. Live-unit note: Penix inactive, Tua starts. Script stays Mild, not Strong.
Personnel: Rodgers expected. Tua bulk; Rush is QB2. Bijan expected.
Prop lean: Bijan is role-first and survives a Mild Negative. Tua attempts rise if ATL trails. Do not treat Atlanta’s 2025 EPA as the live offense.
TEN −1.5 / 39.5 · Implied 20.5–19.0 · Win prob ~53/47
Script: Neutral / Neutral · Confidence Low · Weather Neutral
Side
Rush
Pass
TEN
×1.04
×0.98
NYJ
×0.96
×1.04
How it plays: Lowest total on the board. Script is not the edge. Snap share is.
Personnel: Ward expected. Geno expected. Breece Hall Questionable — Braelon Allen inherits if Hall is limited.
Prop lean: Wait on Hall’s status. Wilson is the only Jets pass-catcher who is script-proof. Unders are a game-environment play, not a GSPI play.
LAC −9.5 / 47.5 · Implied 28.5–19.0 · Win prob ~75/25
Script: Chargers Strong Positive / Cardinals Strong Negative · Confidence High · Weather Neutral (SoFi)
Side
Rush
Pass
LAC
×1.22
×0.82
ARI
×0.78
×1.20
How it plays: Strongest script on the slate. Chargers should run to close. Cardinals should throw from behind. Love’s ankle caps Arizona’s rush answers.
Personnel: Herbert / Hampton expected. Brissett starting. Love Limited — do not assign bulk RB1 snaps until confirmed.
Prop lean: Hampton is the rush-script RB. Herbert passing attempts can shrink if LAC leads by two scores. Harrison Jr. and Cardinals pass-catchers are the deficit-volume side.
LV −3.5 / 40.5 · Implied 22.0–18.5 · Win prob ~60/40
Script: Raiders Mild Positive / Dolphins Mild Negative · Confidence Low · Weather Neutral
Side
Rush
Pass
LV
×1.08
×0.96
MIA
×0.92
×1.08
How it plays: New-staff opener, short total. Label is Mild and confidence is Low because 2025 Raiders EPA does not describe the Cousins unit.
Personnel: Cousins starts; Mendoza is backup. Willis / Achane expected.
Prop lean: Achane is role-first (RB1 snaps) even in a Mild Negative. Willis rushing is the Miami script hedge. Do not treat LV rush overs as High confidence.
MIN −1.5 / 46.5 · Implied 24.0–22.5 · Win prob ~53/47
Script: Neutral / Neutral · Confidence Low · Weather Neutral
Side
Rush
Pass
MIN
×1.02
×0.98
GB
×0.98
×1.02
How it plays: Divisional pick’em. Script is not the lever. Josh Jacobs is Out — that is the lever.
Personnel: Murray / Jefferson expected. Love expected. MarShawn Lloyd inherits Jacobs’ early-down work.
Prop lean: Lloyd is a snap-share play, not a Strong-script play. Jefferson is matchup/role. Love passing is Neutral.
PHI −5.5 / 44.5 · Implied 25.0–19.5 · Win prob ~66/34
Script: Eagles Mild Positive / Commanders Mild Negative · Confidence Medium · Weather Precip watch
Side
Rush
Pass
PHI
×1.14
×0.90
WAS
×0.88
×1.10
How it plays: Capped at Mild (not Strong) because −5.5 is not a locked two-score number. Rain is a secondary rush nudge for Philadelphia, not the primary driver.
Personnel: Hurts / Barkley / DeVonta Smith expected. Daniels / McLaurin expected.
Prop lean: Barkley is the cleanest PHI script. Hurts passing yards can lag if PHI leads and weather is wet. McLaurin/Daniels get volume if Washington trails.
Blowout Watch: If Washington’s road offense stalls, this can stretch past the Mild label. It is not a headline Strong until the live score does that.
DAL −3 / 48.5 · Implied 25.75–22.75 · Win prob ~58/42
Script: Cowboys Mild Positive / Giants Mild Negative · Confidence Medium · Weather Neutral
Side
Rush
Pass
NYG
×0.92
×1.08
DAL
×1.10
×0.94
How it plays: SNF road favorite, healthy total. Dallas gets the late-run lean if it leads. Giants throw to keep pace behind Dart.
Personnel: Prescott / Lamb expected. Dart expected.
Prop lean: Lamb is role-first in a 48.5 total. Dart attempts rise if NYG trails. Dallas RB overs need the lead to stick.
KC −2.5 / 43.5 · Implied 23.0–20.5 · Win prob ~56/44
Script: Chiefs Mild Positive / Broncos Mild Negative · Confidence Low · Weather Neutral
Side
Rush
Pass
KC
×1.08
×0.94
DEN
×0.94
×1.06
How it plays: Short favorite, modest total. Mahomes is expected but Limited (ACL/LCL return, no preseason games). Script cannot be Strong.
Personnel: Mahomes expected; Fields is the backup if clearance fails. Walker expected. Nix expected.
Prop lean: Walker is the KC rush play if Mahomes starts and KC leads. Do not pay Mahomes rushing at full historical rate. Nix attempts rise if Denver trails. If Mahomes were to sit, this card flips to personnel-first immediately.
Strongest Positive
Strongest Negative
Do not overfit
Chargers ×1.22 rush
Cardinals ×1.20 pass
Bills-Texans
Jaguars ×1.20 rush
Browns ×1.18 pass
Titans-Jets
Lions ×1.18 rush
Saints ×1.16 pass
Packers-Vikings
Personnel overrides this week: Henderson Out (Stevenson bulk). Kamara Out (Saints committee + Olave volume). Jacobs Out (Lloyd early-down). Penix Out (Tua is the live ATL QB). Hall and Love are Limited/Questionable — snap share first. Mahomes Limited — cap KC at Mild.
These materials are for entertainment and informational purposes only and are not intended as betting or financial advice.