May 18, 2013

Do Yards Matter?

Over the last few years I’ve noticed multiple web sites, blogs, and other publications state their case as to why total yards gained don’t matter. The usual argument goes something like this: “It doesn’t matter how you score, as long as you score. A team doesn’t get any yards for scoring on defense or special teams, so yards aren’t important – scoring is”.

While that statement is true, at least to a point, the real answer is of course yards matter. Gaining yards does not guarantee points, but it sure increases the odds of scoring. Sure teams score in all kinds of ways every year, some of them not involving offense. But the vast majority of the time touchdowns are scored by offenses and the way offenses score is by gaining yards. It may be a few yards or it may be a lot of yards, but the offense has to gain yards in the large majority of cases for the team to score.

Just because it’s not a one-to-one relationship or a relationship that can be easily defined (i.e. 400 yards = 30 points, for example), doesn’t mean that yards aren’t important.

If you need further evidence that yards matter, the chart below will help clarify the relationship between yards gained (total offense) and scoring. 8 of the top 11 scoring teams are in the top 10 in total offense (total yards gained) and 9 of the top 10 in total offense are in the top 13 in scoring. That’s not a coincidence.

Team Total Offense Scoring Offense
Houston 1 1
Baylor 2 6
Oklahoma State 3 2
Oklahoma 4 10
Nevada 5 31
Oregon 6 3
Texas A&M 7 11
Toledo 8 8
Boise State 9 7
Northern Illinois 10 13

 

There are absolutely outliers and exceptions to this rule, but that doesn’t mean that yards don’t matter statistically speaking. Naysayers can point to a game or perhaps even a team, such as LSU, where yards really don’t matter, but those are few and far in between.

Still not convinced? Even with all of their defense and Tyrann Mathieu seemingly returning a fumble or punt every week LSU still scored 86% of their touchdowns on offense and all of those involved gaining some number of yards. For all of the talk about Oklahoma State’s “opportunistic” defense, 93% of their touchdowns were scored on offense. 94% of Clemson’s touchdowns were scored on offense.

The point is that in the vast majority of cases (90%+) touchdowns are scored by the offense and the only way for an offense to score a touchdown is to gain yards.

Yes, yards matter.

Red Zone Offense (Part II)

Last week we looked at the NCAA’s official Red Zone Efficiency Statistics and how completely absurd the method used to rank teams are. What other positive statistic would have a 1-11 team ranked 2nd nationally?

We gave you a different way to rank these teams (by points per red zone possession) that’s more logical and descriptive of a team’s success or failure in that area of the field.

So, now that we know which teams are the most effective once they get into the red zone lets take a look and see which teams score the most points from red zone possessions and what that means for their chances of winning. After all, Memphis proved that a high percentage of scores on red zone possessions really means little. What matters is getting into the red zone 5 or more times a game and scoring a high percentage of touchdowns on those possessions.

Team G Drives Drives/G Points % TD % FG Won Loss RZPPG
Wisconsin 13 68 5.231 400 .794 .118 11 2 30.77
TCU 13 68 5.231 377 .735 .147 13 0 29.00
Stanford 13 70 5.385 376 .686 .200 12 1 28.92
Boise State 13 68 5.231 364 .691 .162 12 1 28.00
Tulsa 13 70 5.385 363 .657 .200 10 3 27.92
Nevada 14 75 5.357 382 .667 .147 13 1 27.29
East Carolina 13 63 4.846 353 .730 .175 6 7 27.15
Oregon 13 68 5.231 349 .647 .176 12 1 26.85
Texas Tech 13 65 5.000 338 .692 .123 8 5 26.00
Oklahoma 14 77 5.500 364 .571 .247 12 2 26.00

 

Notice the teams at the top of this list. Wisconsin, TCU, Stanford, Boise State, Tulsa and Nevada. Combined they were 71-8 (89.9%). Also, 2 of the 8 losses (Wisconsin to TCU and Boise State to Nevada) occurred to other teams in the top 6. Excluding these games means that when a top 6 team played a team outside of the top 6 the record was 69-6 (92.0%).

The number of points scored in the red zone has the highest correlation to winning of any statistic we have found. The top 10 teams have a combined record of 109-24 (82.0%). The elite teams in college football will average around 25 points (or more) a game from red zone possessions.

Only one of these 10 teams scored touchdowns at a rate lower than 60% and only one kicked FGs at a rate higher than 20% of the time.

The two teams with the worst records also had horrendous defenses (East Carolina ranked dead last in the nation in total defense and Texas Tech was 114th).