Chargers vs Broncos — Week 1, 2017

The Chargers took over trailing 24-21 with 4:07 left, 1st & 10 at their own 40, 2 timeouts in hand, against the Broncos.

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What really happened

Final: Chargers 21, Broncos 24. Broncos won 24-21 — the drive turned it over.

Chargers ball, down 3 — a field goal ties it. At their own 40, 4:07 on the clock.

nflverse's historical win-probability estimate for this exact situation was 34.9% for Chargers. Our model starts at 38.3%. The two numbers are estimates, not verdicts — the gap between them is a reminder that endgame win probability is hard to pin down.

The real drive, snap by snap

  1. (4:07) (Shotgun) 17-P.Rivers pass short left to 16-Ty.Williams ran ob at 50 for 10 yards.
  2. (4:02) (No Huddle, Shotgun) 17-P.Rivers pass incomplete deep left to 16-Ty.Williams (29-B.Roby).
  3. (3:56) (Shotgun) 17-P.Rivers pass incomplete deep left to 12-T.Benjamin.
  4. (3:49) (Shotgun) 17-P.Rivers pass short right to 12-T.Benjamin to LAC 49 for -1 yards (54-B.Marshall).
  5. (3:15) 8-D.Kaser punts 36 yards to DEN 15, Center-47-M.Windt, downed by LAC-51-K.Emanuel.

The opening call, by win probability

At the first snap, the strongest opening call in our model was Curl route (+1.19 pts), and the weakest was Flea flicker (-3.03 pts). A positive number means the call improved the offense's expected win probability; a negative number means it cost them.

Opening callExpected WP change
Curl route+1.19 pts
Quick slant+1.16 pts
Pull RPO+1.03 pts
QB keep+1.03 pts
Quick out+0.44 pts
Play action+0.40 pts
Quick hook+0.32 pts
Screen pass+0.01 pts
Outside run-0.26 pts
Quick RPO-0.55 pts
QB sneak-0.65 pts
Deep comebacker-0.82 pts
Deep post-0.86 pts
Deep corner-1.00 pts
Inside run-1.06 pts
Off-tackle run-1.43 pts
End-around-1.96 pts
Receiver pass-2.50 pts
Spike it-2.80 pts
Flea flicker-3.03 pts

This is our own model estimate, not the real coach's grade and not a claim about what the “correct” call was. Football decisions depend on the opponent, personnel and game plan — the model only measures how a call changes win probability in this situation.