Touchdown Theory

Week 4

Los Angeles Chargers at Seattle Seahawks

Sun Oct 4, 4:25 PM ET (Sun Oct 4, 1:25 PM local)

The market

Line
SEA -7
Total
42.5
Moneyline
LAC +300 SEA -380

These are the market's numbers, recorded as the feed saw them. They are shown so the model can be compared against something, not as a recommendation.

How the line moved

RecordedLineTotalLACSEA
Mon Aug 31, 4:46 PM ETSEA -345.5+145-175
Fri Sep 11, 3:11 PM ETnot posted
Sun Sep 13, 11:25 PM ETnot posted
Wed Sep 23, 12:11 AM ETSEA -6.542.5+235-290
Thu Sep 24, 7:00 AM ETSEA -6.542.5+235-290
Fri Sep 25, 7:00 AM ETSEA -6.542.5+230-285
Tue Sep 29, 10:00 AM ETSEA -742.5+280-355
Wed Sep 30, 7:00 AM ETSEA -742.5+300-380current

Each row is a snapshot the feed recorded, oldest first. Superseded rows are kept, because a line that moves and moves back is only visible if both are shown.

Environment

Venue
Lumen Field, Seattle, WA
Roof
open
Elevation
148 ft
Surface
fieldturf
Temperature
66F
Wind
5 mph N
Chance of precipitation
0%
Humidity
77%
Forecast
Mostly Sunny

Issued 84 hours before kickoff. A forecast issued further out has had less time to settle.

Partial canopy covers ~70% of seats; field exposed. Stadium WP did not list elevation; using Seattle city elevation (148 ft).

The projection

LAC at SEASEA 74% to win
Sun Oct 4, 4:25 PM ET
Market line
SEA -7
Market total
42.5
Projected spread
SEA -9.5
Projected total
40.5
Market oddsLAC +300 SEA -380
Fair oddsLAC +280 SEA -280

How the number is built

The model projects each side, then adjusts for the conditions the game is played in. Both steps are shown so the adjustment can be seen rather than taken on trust. These add up exactly as printed; if they ever did not, this section would not appear.

SEA25.0
25.0Before environment+(+0.0)Environment=25.0
LAC15.7
15.7Before environment+(+0.0)Environment=15.7
Total40.7
40.7Before environment+(+0.0)Environment, SEA+(+0.0)Environment, LAC=40.7
Wind
LAC 0.00, SEA 0.00 EPA on passing
Cold
not applied
Indoors
not applied
Elevation
not applied

Wind and cold are recorded as an effect on passing efficiency, not as points, and the conversion between the two is not published, so they are shown in their own units rather than added into the chain above. Indoors and elevation are recorded in points.

Two earlier links, per-play efficiency and the matchup adjustment, are computed and discarded rather than stored, so they cannot be shown yet.

live-20261002T023447Z, generated Thu Oct 1, 10:35 PM ET

Where the player numbers come from

The model projects each team's line first, then divides it among players. Both are shown, with the team figure beside the sum of its parts, so the division can be checked rather than trusted. A row appears only when the parts add up to the whole.

Seattle Seahawksprojected 36.2 pass plays, 25.2 run plays
Team lineProjectedSum of players
Pass attempts33.733.7
Pass yards262.2262.2
Receiving yards262.2262.2
Pass touchdowns1.451.45
Receiving touchdowns1.451.45
Carries25.525.5
Rush yards108.0108.0
Rush touchdowns1.021.02
PlayerPosPassRushRecTgtShare
Sam DarnoldQB262.24.4100%
Jaxon Smith-NjigbaWR0.6126.111.148%
Jadarian PriceRB45.111.32.34%
Emanuel WilsonRB36.72.90.61%
Rashid ShaheedWR2.927.63.911%
AJ BarnerTE0.529.83.611%
George HolaniRB17.410.91.64%
Cooper KuppWR25.92.910%
Montorie Foster Jr.WR0.69.51.24%
Tory HortonWR9.71.14%
Elijah ArroyoTE5.20.62%
Eric SaubertTE0.03.30.91%
Los Angeles Chargersprojected 39.0 pass plays, 22.6 run plays
Team lineProjectedSum of players
Pass attempts33.333.3
Pass yards169.5169.5
Receiving yards169.5169.5
Pass touchdowns0.910.91
Receiving touchdowns0.910.91
Carries26.026.0
Rush yards101.5101.5
Rush touchdowns0.110.11
PlayerPosPassRushRecTgtShare
Justin HerbertQB169.514.2100%
Omarion HamptonRB56.38.31.95%
Ladd McConkeyWR0.037.26.022%
Keaton MitchellRB25.87.31.84%
Tre' HarrisWR0.032.84.919%
Quentin JohnstonWR0.730.65.818%
Oronde GadsdenTE0.020.12.912%
Charlie KolarTE0.115.52.29%
Kimani VidalRB4.25.41.23%
Brenen ThompsonWR0.19.01.75%
Marquez Valdes-ScantlingWR3.01.02%
Hayden RucciTE0.30.10%

Share is a player's portion of the team's projected passing yards, counting a quarterback by what he throws and everyone else by what he catches. Targets are shown but not totalled: a throwaway, a batted ball or a sack is a pass attempt with no target, which is about four a game per team, so targets legitimately do not sum to attempts.

live-20261002T023447Z

Injury report

Los Angeles Chargers12 listed
Brenen ThompsonWRQuadricepDid Not Participate In Practice
Charlie KolarTEForearmDid Not Participate In Practice
Dalvin TomlinsonDTHamstringDid Not Participate In Practice
Derwin JamesSHamstringLimited Participation in Practice
Donte JacksonCBConcussionDid Not Participate In Practice
Elijah MoldenSHamstringLimited Participation in Practice
Justin EboigbeDEEyeDid Not Participate In Practice
Kayode AwosikaGFibulaDid Not Participate In Practice
Keaton MitchellRBAnkleLimited Participation in Practice
Khalil MackDENot injury related - resting playerDid Not Participate In Practice
Ladd McConkeyWRFootLimited Participation in Practice
Trey LanceQBGroinLimited Participation in Practice
Seattle Seahawks10 listed
Brandon PiliDTNeckFull Participation in Practice
George HolaniRBRibLimited Participation in Practice
Grey ZabelGGroinLimited Participation in Practice
Jadarian PriceRBChestLimited Participation in Practice
Jarran ReedDTFootLimited Participation in Practice
Julian LoveSCalfLimited Participation in Practice
Leonard WilliamsDTNot injury related - resting playerLimited Participation in Practice
Nick EmmanworiSAnkleFull Participation in Practice
Rashid ShaheedWRHipFull Participation in Practice
Ty OkadaSHamstringDid Not Participate In Practice