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Buffalo Bills at Kansas City Chiefs, NFL forecast

FinalAFC Championship

Away

Bills

13-4

29–32

at

Home

Chiefs

15-2

BUF 48%KC 52%

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Arrowhead Stadium · CBS, Paramount+

Win probability

Starts from the pregame forecast, then moves with every score and the time left. Above the line favors KC; hover for each play.

KC favored BUF favored10 scoring plays
Q1Q2Q3Q4KC50%BUF

Game center

From the ESPN box score.

Top performers

Bills
Chiefs

Scoring summary

  • Q43:33Harrison Butker 35 Yd Field Goal29–32
  • Q46:15Curtis Samuel 4 Yd pass from Josh Allen (Tyler Bass Kick)29–29
  • Q410:14Patrick Mahomes 10 Yd Rush (Patrick Mahomes Pass to Justin Watson for Two-Point Conversion)22–29
  • Q32:56James Cook 1 Yd Rush (Two-Point Pass Conversion Failed)22–21
  • Q20:23Mack Hollins 34 Yd pass from Josh Allen (Two-Point Run Conversion Failed)16–21
  • Q21:55Patrick Mahomes 1 Yd Rush (Harrison Butker Kick)10–21
  • Q24:13Xavier Worthy 11 Yd pass from Patrick Mahomes (Harrison Butker Kick)10–14
  • Q210:25James Cook 6 Yd Rush (Tyler Bass Kick)10–7
  • Q13:45Tyler Bass 53 Yd Field Goal3–7
  • Q18:56Kareem Hunt 12 Yd Rush (Harrison Butker Kick)0–7

Turning points

The 5 plays that swung the win chance most, each judged at its own moment: the chance with the score just before it against just after.

  1. Q24:13Xavier Worthy 11 Yd pass from Patrick Mahomes (Harrison Butker Kick)BUF 10 – 14 KC · KC 41% → 64% +23
  2. Q32:56James Cook 1 Yd Rush (Two-Point Pass Conversion Failed)BUF 22 – 21 KC · BUF 28% → 54% +26
  3. Q410:14Patrick Mahomes 10 Yd Rush (Patrick Mahomes Pass to Justin Watson for Two-Point Conversion)BUF 22 – 29 KC · KC 45% → 86% +41
  4. Q46:15Curtis Samuel 4 Yd pass from Josh Allen (Tyler Bass Kick)BUF 29 – 29 KC · BUF 8% → 49% +41
  5. Q43:33Harrison Butker 35 Yd Field GoalBUF 29 – 32 KC · KC 50% → 78% +28

The pick

Reconstructed from what was known before the game: the ratings at that point and the closing line.

Chiefs 52%

Toss-upHit
BUF 48%KC 52%

Forecast Elo ratings alone

How often that comes true: NFL favorites the forecast gave 50–55% have won 54.7% of 95 graded games.

Market
KC -2.5
ML BUF -104 / KC -116
Pre-line forecast
KC 54%
Elo + market-implied
Elo ratings
KC -1.5
KC 55%
Ratings vs. market
+4.2 pts
KC: Elo 55.5%, market 51.3%
Fair odds
KC -107
BUF +107 · the forecast as odds, no margin
Pregame projection
BUF 23.5 – 26.0 KC
Posted spread, posted total 49.5

How the number is built

Elo inputs in rating points (higher favors that team; 25–28 Elo is about a point of spread in football and basketball), then how the pieces combine.

FactorBUFKCWhy
Team rating17291722Elo entering the game; 1500 is league average
Home field—+36Worth 36 Elo in the NFL
Quarterbacks—+9BUF: Josh Allen · KC: Patrick Mahomes (against each team's recent starters, from the box score)
Elo ratingsKC +38 EloKC 55.5%
Market-implied ratingsBUF 50.5%Team strength as past closing lines priced it, same game context
Pre-line forecastKC 54.0%75% Elo, 25% market-implied (log-odds blend)
ForecastKC 51.6%93% market, 8% Elo

Tale of the tape

This season coming into the game, regular season, each number with its league rank (the longer the bar, the higher). Home and road: the host's record at home against the visitor's on the road. Yards per play counts passes, sacks and runs, with sack yardage taken off.

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Buffalo Bills and Kansas City Chiefs compared, with each team's league rank
BUFStatKC
2nd of 3230.9Points scored22.615th of 32
11th of 3221.6Points allowed19.24th of 32
3rd of 32+9.2Margin+3.511th of 32
6th of 325.96Yards per play5.1123rd of 32
21st of 325.52Yards allowed per play5.3112th of 32
4th of 328–2Last 108–24th of 32
14th of 325–4Road vs home8–01st of 32

Rating history

Each team's Elo over the last two seasons. Hover or drag to compare on any date.

BillsChiefs
1450150015501600165017001750league averageSepDecMarJunSep

Against the line

How each team has done against the closing spread and total, coming into this game.

This seasonBUFKC
Against the spread10–64–9
Last 106–42–8
Favorite8–44–8
Underdog2–20–1
Overs–unders11–54–9
Overs–unders, last 108–24–6

Against each game's closing line. Books set every line knowing these records: across 3,901 past games, the team with the better record against the spread so far that season covered 51.2%, short of the 52.4% a standard −110 bet needs, and over/under streaks held 48.0% of the time. They describe the past.

Head to head

BUF 2–1 KC in their last 3 meetings; the forecast called 0 of 3.