San Francisco 49ers

5–0 · NFC West · QB Brock Purdy
#1
1579 Team Elo
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Projected finish
13.0–4.0 expected
99% playoffs
85% division
63% first-round bye
1%
9–8
5%
10–7
11%
11–6
20%
12–5
24%
13–4
21%
14–3
12%
15–2
4%
16–1
10+ wins 98% · win out 1%
Upcoming
stakes 19/100· playoff odds 99% if win, 97% if losstap to see what it moves
stakes 33/100· playoff odds 99% if win, 97% if losstap to see what it moves
stakes 16/100· playoff odds 99% if win, 98% if losstap to see what it moves
W10@ #17 Dallas Cowboys DAL line —
63%
stakes 23/100· playoff odds >99% if win, 97% if losstap to see what it moves
The receipts
WkOpponentResultWin%±Rating
W1n #1 Los Angeles Rams LA W 27–738%+26.11560
W2vs #32 Miami Dolphins MIA W 35–1384%+8.41569
W3vs #31 Arizona Cardinals ARI W 36–3082%−5.31563
W4vs #9 Denver Broncos DEN W 24–1460%+8.81572
W5@ #1 Seattle Seahawks SEA W 32–2943%+6.51579
Ratingseed 1534✓ receipts = rating1579

Each game moves the rating by K × (result − expectation), where the result is scaled by margin. Start at the season seed, add every line, and you land on today's rating — exactly. Win% is the model's calibrated probability before kickoff.

Rating profile
Team Elo
1579 #1
Offense
1590 #2
↳ Quarterback
1634 #2
Defense
1511 #11

Team Elo is the board's rating, built from margins. Offense and defense are the two Factor Elos — a second model that rates points per possession — and the quarterback is a component inside offense (the ↳). They are shown as the model saw them entering week 6.

Factor Elos
Supporting cast1558
QB · Brock Purdy+44
Situation0
Offense1603 #2
Defense1507 #11

Offense and defense are rated in points per possession by a second model. Cast plus the quarterback's marginal effect plus the situational term equals offense, exactly. The situation line is non-zero only when a team is starting someone other than its established quarterback — that is a property of the team's phase, not the player, so it is kept outside his rating.

Trajectory
#1#4#6W1W3W6

Team Elo rank after each week. Bye weeks hold the previous rank.

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