Review of The Science of Fantasy Football Report for Preseason Week 2

 (August 20–23, 2026) centered on the GSPI (Game Script Predictive Index) to project passing/rushing volume multipliers, backup opportunities, and prop angles amid heavy starter rest across the 16-game slate.

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It correctly highlighted that most projected Week 1 starters (especially offensive lines, primary RBs, and WRs in bigger-spread games) would see limited or zero snaps after joint practices. This shifted volume to second- and third stringers. 

Notable backup/opportunity spots called out included Houston/Las Vegas (mid-to-late game RB/WR volume), Denver/Green Bay (Packers depth under projected negative script), Detroit/Washington, Indianapolis/Atlanta (Colts resting most starters, elevating Riley Leonard and second-string skill players), Tampa Bay/Kansas City, and Tennessee/Seattle.

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Script effects were standard: positive scripts favor elevated RB rush attempts/goal-line work and suppress pass volume; negative scripts do the opposite (more pass attempts/targets for QBs/WRs/TEs). Highest-conviction angles prioritized backup RBs on strong-positive teams (Denver, Detroit, Tampa Bay, Tennessee) and second-string pass-catchers/QBs on strong-negative teams (Green Bay, Washington, Kansas City, Seattle), plus mid-game volume in the Houston–Las Vegas and Indianapolis–Atlanta games.

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Strongest Scripts Projected

• Strong positive (higher rush volume multiplier): Denver (+18–22%), Tampa Bay (+16–20%), Detroit (+15–19%).

• Strong negative (higher pass volume multiplier): Green Bay (+18–22%), Kansas City (+16–20%), Seattle (+15–19%).
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Actual Results and Script Evaluation

Here are the final scores for context:

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• LV Raiders 22, HOU Texans 20

• SF 49ers 41, LAC Chargers 17

• NYJ Jets 17, PIT Steelers 0

• CAR Panthers 34, JAX Jaguars 17

• GB Packers 33, DEN Broncos 13

• WAS Commanders 13, DET Lions 17

• BAL Ravens 13, MIN Vikings 3

• ATL Falcons 34, IND Colts 6

• BUF Bills 31, CLE Browns 7

• NO Saints 0, LAR Rams 34

• NYG Giants 26, MIA Dolphins 3

• CHI Bears 9, CIN Bengals 27

• PHI Eagles 21, NE Patriots 24

• KC Chiefs 15, TB Buccaneers 16

• DAL Cowboys 34, ARI Cardinals 13

• SEA Seahawks 16, TEN Titans 19

Successes (directional hits on the strongest scripts and related angles):

• Detroit’s mild-to-strong positive held up with a 17-13 home win over Washington. Close score, but the Lions controlled enough to support the projected rush bias for backups.

• Tampa Bay’s positive leaned mild/successful: they edged Kansas City 16-15 (coming from behind after trailing at half). Rush attempts were roughly even (TB ~25 carries/99 yards; KC ~22/104), consistent with a tight, competitive script rather than a blowout.
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• Kansas City’s strong-negative projection largely tracked (close loss, forced to play from behind late).

• Seattle’s strong-negative also tracked with a 16-19 road loss to Tennessee.

• Tennessee’s positive lean for backup RBs worked directionally via the narrow home win.

• Indianapolis resting starters created the expected backup/volume window; Atlanta dominated 34-6 as the visitors. Houston–Las Vegas stayed competitive and low-scoring (close Raiders win), supporting mid-to-late backup involvement. Washington’s negative script (loss) also aligned for pass-catcher opportunities among depth players.

Overall starter-rest and backup-volume themes proved accurate across the slate—preseason norms held, with many first-teamers limited, elevating developmental and second-string players for fantasy/prop evaluation.Failures / misses (notable script reversals):

• Denver’s strong-positive call was a clear miss. The Broncos were blown out 13-33 at home by Green Bay. Bo Nix looked sharp in limited action (6-of-9, 76 yards, TD in his return from injury, including a nice connection with Jaylen Waddle), but the team script flipped heavily negative.

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• Green Bay’s strong-negative projection was the mirror-image miss. The Packers dominated 33-13 on the road (more yards, time of possession, and control), producing a strong positive script instead. Jordan Love was efficient in limited snaps; backups and depth contributed in a favorable environment.

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These two games (the highest-conviction opposing scripts) essentially reversed. Preseason volatility, rest decisions, and execution gaps (common in August) likely drove the discrepancy more than the underlying GSPI inputs.

 Closer games (TB/KC, DET/WAS, TEN/SEA) were far more consistent with the directional leans.

Broader Takeaways

The report’s framework (prioritize snap-projected backups whose team script aligns with the prop, discount rested starters, favor high-conviction strong-script games) remains useful even with the Denver/Green Bay misses. 

Preseason is noisy by design—starters often play only a series or two, weather was mostly neutral, and lines were compressed. 

The biggest value came from correctly identifying rest patterns and the resulting volume opportunities rather than precise final margins.

Fantasy-relevant notes from the slate included strong showings or continued buzz for certain depth/backup skill players (e.g., various Packers and 49ers receivers/RBs in blowouts, Titans edge in a close win), while many projected starters stayed limited as expected. The GSPI approach flagged the right types of spots more often than not outside the two biggest flips.

If we revisit specific player props, individual box-score deep dives, or adjust the model for Week 3, the data is there. Preseason remains more about opportunity and evaluation than pure prediction accuracy—our joint report captured the opportunity side well.