Thursday, October 18, 2012

The College Football Blog: 2012 Season Résumé Rankings (After Week 7)



Season Résumé Rankings After Week 7

1. Alabama 6-0 (3rd)
2. Florida 6-0 (5th)
3. South Carolina 6-1 (1st)
4. Notre Dame 6-0 (2nd)
5. Ohio State 7-0 (4th)
6. Oregon State 5-0 (NR)
7. Kansas State 6-0 (10th)
8. Oregon 6-0 (6th)
9. USC 5-1 (NR)
10. Texas Tech 5-1 (NR)

Out: West Virginia (7th); Louisiana Tech (8th); Rutgers (9th).

Comments: Although 12 teams remained unbeaten through the weekend, I stuck with my plan of making 1-loss teams eligible for these rankings this week. The 23 teams with only 1 loss increased the number of eligible teams to 35. 

While the requirements for eligibility changed, I kept the formula the same this week. It took a while but eventually I came up with this week’s rankings. It was interesting to see how the 1-loss teams would fair against the unbeatens. But by the time I finished I realized that there were still some fairly obvious flaws in my formula which I will have to tweak once again next week. 

The first step this week was to place the opponents of the 35 eligible teams on my strength of opponent scale. Once again, I realized that there is a need for yet another level on the scale. It’s not that hard to figure out the teams that are at the two extremes (poor teams and great teams). It’s in between those two extremes that it gets tricky trying to determine whether a team should be labeled as “decent” or “average.” The same goes for trying to decide whether a team should be considered “average” or “good.” Since there is a 1-point difference between each level it ends up being rather important. 

Eventually I settled on a grade for each opponent. Losses were also being graded this week, and with each part of my formula (strength of opponent, location, and margin) I simply applied the opposite of what it would be for a win. For example, a win over a poor team would be worth zero points, while a win over a great team would be worth 4 points. Therefore, a loss to a poor team would be -4 points, while a loss to a great team would be zero points. I did the same thing with margin and location. 

While creating this week’s rankings I decided that I would also need to do some tweaking to the other two parts of the formula as well. While playing on the road is certainly a major factor in college football that needs to be taken into account in any sort of ranking system, my formula at the moment doesn’t recognize that not all road wins are the same. My formula cannot differentiate between winning at LSU and winning at FAU. 

Obviously the strength of opponent part of the formula will recognize the difference in a way, as a team would receive 4 points for beating LSU and zero points for beating FAU. The problem is that an automatic 2-points for winning anywhere on the road is too much. I realize now that my way of coming up with the location scale was flawed to begin with. 

It seems logical that a win on a neutral field would fall exactly in between a win at home and a win on the road, since you are assuming that generally speaking you would have all the fan support at home, no fan support on the road, and a 50-50 split at a neutral site. However, my intervals probably need to be smaller. 

And to be honest, a win on the road should maybe even be more than 50% more than a neutral field win. I may even have to introduce something that negates the road win bonus when it comes against a very weak team. In other words, I’ll have to consider strength of opponent when factoring in how much credit I dole out for location. 

I came to a similar conclusion this week regarding the margin of victory/loss scale. I had already downsized this scale in previous weeks, going up by a half point instead of a full point. Also, I had already put a cap on the scale at 25+ points so that teams calling off the dogs when the game was out of reach wouldn’t be punished, and so that a team with a 70-point win over one hapless opponent wouldn’t be overly rewarded. But again, a 40-point win over Army probably shouldn’t give out a bonus of 1.5 points more than a 7-point win over Oklahoma. It may be that I’ll even have to factor in strength of opponent when assigning scores for margin of victory/loss. 

The real problem actually came about whenever there was a combination of weak opponent, on the road, and big margin of victory. That was when it became clear that I had to fix something. With the current formula, a 7-point home win over Alabama would be worth 4 points, while a 27-point road victory over UMass would be worth 3.5 points. That simply doesn’t make sense. So unfortunately, I think I’m much farther away from creating a truly relevant formula than I felt I was heading into this past week. 

While the system isn’t perfect, I still think this week’s rankings are interesting. Amazingly, all 10 spots in my rankings experienced change this week. I switched out 3 teams. 4 teams moved down in my rankings while still remaining in the top 10, with 3 of those teams moving down at least 2 spots. 3 teams also moved up in the rankings and all 3 moved up at least 2 spots. 

West Virginia, Louisiana Tech, and Rutgers dropped out of the rankings this week from #7, #8, and #9 respectively. Oregon State, USC, and Texas Tech all jumped into the top 10 at #6, #9, and #10 respectively.

Florida and Kansas State made the biggest moves up the rankings this week, both climbing 3 spots. Florida moved up 3 spots from #5 to #2, while KSU moved up 3 places from #10 to #7.

No team fell more than 2 spots while remaining in the top 10 this week. South Carolina dropped out of the top spot to #3, while Notre Dame moved down 2 spots from #2 to #4, and Oregon fell 2 spots from #6 to #8. 

Alabama moved up 2 spots from #3 to retake the #1 spot in these rankings. Ohio State was the only 7-0 team in the rankings, coming in at #5. South Carolina was the highest ranked team with a loss, earning the #3 spot. In total, 7 of the 12 undefeated teams made the top 10, while 3 of the 23 teams with 1 loss made the rankings.

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