EPW: The Undefeated Teams in College Basketball

With Sunday having been a dull slate of game, I decided to take a look at the three remaining undefeated teams, their schedules thus far and their outlooks for the rest of the season. Ken Pomeroy tweeted last night that the chances of at least one undefeated team at the end of the regular season was 48%. Whether or not any of these teams finish the regular season undefeated is largely meaningless. They don’t go from “unbeatable” to “suspect” just from a loss. It is, however, exciting (at least, to me) to think about a team having the potential to be undefeated heading into the NCAA tournament. Obviously, Wichita St. is in the best place to do so. They have a much larger chance than Arizona or Syracuse of finishing the regular season undefeated, along with a higher chance of winning their conference tournament. Most of the discussion really lands on Arizona and Wichita St., as Syracuse’s current chances at an undefeated regular season are a little over 1%, but I’ll be taking a look at all three teams anyway.

The first thing I want to take a look at is a visual representation of the games these three teams have played through January 27. What I have done in the chart below, is graph each team’s value added from each game played, from best to worst. For example, on the blue line (Arizona), the 1st data point is at .676, which corresponds to their victory at Michigan on December 14. The average likelihood of my original six baseline teams (UCLA, Iowa, Oklahoma St, Villanova, Pittsburgh and Wichita St) winning that game at Michigan was .324, therefore Arizona is credited with the difference between one full win, and that average result. Hence, that game is worth .676. I did this for every game each team has played, they graphed them in descending order.

Undefeated - Best to Worst

 

The two things that stand out the most, to me, are the amount of quality wins Arizona has compared to the other two teams, and the lack of quality wins that Wichita St. has at all. Now, to offer some context for that graph, the following table has all the pertinent information for this exercise.

Undefeated - Breakdown

 

Two quick things to point out in this graphic. The “Opp” column is the opponent’s current rank in the KenPom ratings, and the “Rank” column is a ranking of all 59 total games between the three teams ranked in descending order of value.

I don’t think I’m pointing out anything new when I say that Arizona’s best wins have been amazing. Between the three teams, Arizona has four of the best five wins. This isn’t a product of three teams with weak schedules, either. Of those four Wildcat wins, three of which came on the road (Michigan, San Diego St and UCLA), with the fourth (Duke) being at a neutral site. The only non-Arizona win to crack the top five actually comes from Wichita St., which will have most people who read this scratching their heads. The Shockers win at Saint Louis on December 1 ranks as the 4th best win of this entire bunch. I’m sure a lot of people would assume that Syracuse’s wins over Pitt and Villanova would rank higher, but in this instance, those people would be wrong (and it’s not really that close.) Saint Louis is a top 25 KenPom team. Beating a team like that in their own building is a difficult task.

Aside from that Saint Louis victory, however, things are a bit more bleak for the Shockers. Their next best win comes in at #12, a road win at Alabama. The entire group of victories between #6 and #11 all belong to Syracuse. They might not have the marquee victory yet, but those six wins are all very strong. If those six games were played by the mythical baseline team, the expectation of winning those all of those games is just under 10%.

Right now, this information lines up with the polls. Arizona is ranked #1 based on the strength of those top shelf wins. Syracuse slots in behind them with the bulk middle-tier victories, and Wichita St. is the third banana, a quality team hasn’t had the caliber of wins (and won’t have the opportunity to pick up those wins until the second weekend of the NCAA tournament) needed to change the perception from “Best Mid Major” to “Best in the Nation.”

undefeated-remaining

 

Looking at the above graphic of remaining games for each team, you can quickly see that Syracuse’s schedule looks very similar to Arizona’s starting schedule. The Orange own the four most difficult remaining games between the teams, with Arizona grabbing the next five in strength. Wichita St. only shows up twice in the top 20, which is why their chances to finish the regular season undefeated are around 40%. To put that 40% in perspective, Wichita St. goes undefeated in the regular season as often as Andrew McCutchen reached base last year in his MVP campaign. Arizona, however, is just under 12%, or Andrew McCutchen’s walk rate in 2013. Syracuse is bringing up the rear, finishing undefeated 1.3% of the time. To complete the baseball benchmarks, that’s how often McCutchen has ground into a double play over the course of his career. I have no idea how the rest of the season will go, but as a Duke fan, I hope the Blue Devils come in to 2nd base hard on Sunday. The last thing I want to see is Syracuse rolling a pair.

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