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A Closer Look at Redskins Grossman's Recent Clutchness

The Redskins stunned the Giants on Sunday, winning 28-14 after shutting out Coughlin and crew in the second half.  After a Rex Grossman fumble to start the 4th quarter, the Redskins blocked a 38-yard Lawrence Tynes field goal attempt and the momentum swung in their favor.  

Starting from their own 30, Washington went on a 6-minute, 10-play drive, culminating in a game-clinching touchdown pass to Jabar Gaffney.

Using a Markov model of a football drive, we can calculate the probability of a drive ending in any possible way: TD, field goal, turnover, punt, etc...

Here is a look at the Redskins final scoring drive:

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The biggest play of the drive? Play 4.  Backed into a 3rd-and-9 on their own 45, Grossman completes a 7-yard pass to Fred Davis - short of the first down.  Enter Antrel Rolle: a 15-yard unnecessary roughness penalty keeps the drive alive and vastly shifts the probabilities.  Before the penalty, there was over a 60% probability the drive would end in a punt and only a 12% chance of a TD.  After the penalty, the punt probability drops to 5% and TD probability jumps to 37%.

The Redskins converted three 3rd-downs on the drive (plays 4, 7 and 10), ultimately scoring on a 3rd-and-4.  We see these 3rd-downs highlighted in the expected points:

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Note: These expected points are based on the probability of scoring on one drive.  This expected points model differs from Brian's expected points model in a few ways, the most notable of which is that it does not include the interaction between drives.

Keith Goldner is the creator of Drive-By Football, and Chief Analyst at - The leading fantasy sports analytics platform. 


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