As noted yesterday, red zone performance is mildly correlated with team success. One team that was a big outlier last year was the Steelers. Pittsburgh’s offense made it into the red zone 63 times, but converted those trips into touchdowns just 32 times (50.8%), slightly below-average. On defense, the Steelers allowed touchdowns on 24 of 39 red zone trips, a 61.5% rate that was the 5th-worst in the league. Of course, the Steelers were actually one of the best teams in the league.
On one hand, this seems kind of silly: of course red zone performance alone won’t tell us much about a team’s record! It says nothing about a team’s turnover rate, how effective the team is at producing or preventing big plays, overall team efficiency, or special teams. Perhaps the most remarkable part is that it does tell us quite a bit.
The table below has a lot of information, so to analyze it, let’s look at the best red zone team of the modern era, the 2005 Seattle Seahawks. That year, the Seahawks offense had 60 red zone trips and scored a touchdown on 43 of them, a conversion rate of 71.7%. Given that 53% of red zone trips yield a touchdown, this means Seattle’s offense scored 11.1 more red zone touchdowns than expected. On defense, Seattle faced 47 red zone trips, and allowed just 19 touchdowns, a 40.4% conversion rate that was 6.0 touchdowns better than average. Therefore, overall, the team’s red zone performance yielded 17.1 touchdowns better than average, the most of any team since 2002. Based on the best-fit formula derived yesterday, a team’s expected winning percentage based on its red zone team value is 0.0154*(Team Value) +0.500. Since Seattle’s red zone value was +17.1, we would have expected the Seahawks to win 76.3% of their games; they actually won 81.3% of their games, a difference of 0.049.








