Week 15, Falcons at Jaguars
4th-and-18, 1:46 remaining in 4th quarter, Up by 3
The Falcons attempted a field goal on a 4th-and-18 on the Jaguars’ 28. The NYT 4th Down Bot has no problem with that.
If you disagree

The coach and I agree that attempting a field goal is the thing to do here, but you may be thinking it makes sense to punt. That would be the right call if you think the Falcons’ chances of making a field goal are less than 36 percent. But based on my analysis of over 13,000 field goal attempts since 2001, I give the average kicker a 78 percent chance to make a kick from this distance in a outdoor stadium.

Here's the full breakdown of my calculations:

Option Chance of converting
Chance of winning
Before play
After play Change
Field goal try45 yard kick (est.) 78% 74% 76% +2%
Punt 74% 69% –5%
Go for it4th and 18, opp. 28 10% 74% 69% –5%
My decision in context

Along with some circuitry to come up with a win probability for every game situation, all you need to figure out what you should do next is an estimate of how likely you are to make a field goal or convert a first down.

My estimates for these are based on the results of thousands of similar plays, but you may think you're smarter than I am. This chart shows you how changing those estimates would change my recommendation.

What to do on 4th-and-18 on opp. 28
Up by 3 with 1:46 remaining in the 4th quarter
Behind my field goal number
What coaches usually do

Based on about 1,385 fourth downs in similar situations since 2001.

What happened

Shayne Graham 46 yard field goal attempt is GOOD. Shayne Graham 46 yard field goal attempt is GOOD.

Where did these numbers come from?

To estimate a team’s chances of winning, I use a mathematical model that accounts for a whole lot of variables — including the difference in score, the time remaining in the game, and the number of timeouts each team has left. On top of that, I have models for the likelihood that a team makes a field goal and the likelihood that it will convert a first down.

By combining all of this information, I can come up with the best decision a team can make, according to math.

If you want even more details about the numbers behind my decisions, my full model is available on GitHub. Help make me better!