Thursday, January 18, 2024

2023 Adjusted Pythagorean Record: AAC

Last week we looked at how AAC teams fared in terms of yards per play. This week, we turn our attention to how the season played out in terms of the Adjusted Pythagorean Record, or APR. For an in-depth look at APR, click here. If you didn’t feel like clicking, here is the Reader’s Digest version. APR looks at how well a team scores and prevents touchdowns. Non-offensive touchdowns, field goals, extra points, and safeties are excluded. The ratio of offensive touchdowns to touchdowns allowed is converted into a winning percentage. Pretty simple actually. 

Once again, here are the 2023 AAC standings.
And here are the APR standings with conference rank in offensive touchdowns, touchdowns allowed, and APR in parentheses. This includes conference games only with the championship game excluded.
Finally, AAC teams are sorted by the difference between their actual number of wins and their expected number of wins according to APR.
Tulane won an incredible two and a half more games than we would have expected based on the ratio of their touchdowns scored and allowed in AAC play. The Green Wave also greatly exceeded their expected record based on YPP and we went over some reasons for that last week. Meanwhile Florida Atlantic won almost two fewer games than we would have expected based on their touchdown ratio. The Owls were not terrible in close games (1-2 in one-score league games) and they actually had a positive in-conference turnover margin (+3). So what was the reason for the disconnect between their actual record and their APR? Like UAB last week, I think the culprit is fourth down success. The Owls went for it on fourth down 25 times in AAC play and they converted those opportunities less than half the time (11). The Owls were particularly bad in their four-game losing streak to close the season. In that streak, they made 17 fourth down attempts and converted just six times. That amounts to eleven hidden turnovers over four games, two of which the Owls lost by three points apiece. 

Using the Preseason AP Poll to Make Conference Championship Game Bets
The title is straightforward and a bit of a mouthful, but it also serves as a good way to increase your bankroll when Championship Weekend rolls around. Allow me to explain. 

Three years a go, I wrote about how you can go about spotting a championship game blowout. The basic idea of the post is this: When handicapping college football championship games, one of the easiest (and most profitable) methods is to simply look at the preseason AP Poll. If one of the teams was ranked in the preseason AP Poll (particularly the top ten) and the other was not, betting on the team that was ranked in the preseason can usually lock in a profit for you. The table below lists the results for Power Five title games where one team was ranked in the preseason AP Poll and the other was not.
Those teams ranked in the preseason AP Poll have won more than 90% of championship games against teams that began the year unranked. While their ATS mark is not quite as strong, they have covered nearly twice as often as not. This situation played out twice in 2023. Florida State and Texas began the year ranked eighth and eleventh respectively in the preseason AP Poll and faced teams in their respective conference title games that were unranked in the preseason AP Poll (Louisville and Oklahoma State). The Seminoles (with their third string quarterback) and Longhorns both won and covered. 

If we look solely at teams that began the year in the top ten of the preseason AP Poll, the results are pretty similar. 
Those teams won their conference title game 93% of the time and covered over 64% of the time. 

Those were Power Five numbers. Does this trend hold at the Group of Five level? Glad you asked. As you may have guessed, teams from the Group of Five are much less likely to begin the season ranked in the preseason AP Poll. It's even less likely for said preseason ranked team to play in their conference title game against a team that was not in the preseason AP Poll. In fact, it has only happened seven times. 
Those seven teams won their conference title games over 70% of their time, but their ATS record was less definitive. This situation also played out in 2023 with Tulane facing SMU in the AAC Championship Game. Off a Cotton Bowl victory in 2022, the Green Wave were ranked in the preseason AP Poll, while SMU began the year unranked. Despite that difference, and despite the homefield advantage enjoyed by Tulane, the Mustangs dispatched the Green Wave to win their first conference title since 1984

So what should you do when making your championship game bets in December? For Power Five conferences, if you see a matchup between teams that fit these preseason ranked/unranked criteria, strongly consider backing the team ranked in the preseason AP Poll. If you can't pull the trigger, pass on the game, but under no circumstances should you back the team that began the season unranked. For Group of Five games, this law is much less ironclad, but if the Group of Five team was ranked in the preseason top ten of the AP Poll, they may be worth a look. 

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