Inside the ACC Numbers: Volume VI

Posted by Brad Jenkins (@bradjenk) on February 24th, 2017

Here is the latest edition of our weekly review of the current ACC standings and team performances where we focus on which teams are playing better or worse than their records indicate. Each week we delve into advanced metrics to reveal a few interesting teams, player statistics and trends. This week we will look at the most extreme example of home court advantage in the ACC. Finally, we forecast how the final ACC standings may look given current efficiency margins, and what that means for each teams’ postseason aspirations.

Note: All data is current for games played through Wednesday, February 22.

Current Standings

Thanks to Wednesday’s home win over Louisville, North Carolina has now taken the lead in efficiency margin to go along with its two-game cushion in the standings. Efficiency margins confirm that the Tar Heels and the Cardinals are the two best teams in the league, so we should not be surprised if they meet again in the ACC Tournament championship game. If neither squad loses until March 11, one of the NCAA’s #1 seeds would probably be on the line that Saturday night. The standings match up well with efficiency at this point, with two notable exceptions – Virginia has played quite a bit better than its record indicates, while Virginia Tech appears to be very fortunate to be 8-7 in league play. Perhaps the hottest team in the league right now is Miami, as the Hurricanes have posted seven victories in their last nine outings.

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Inside the ACC Numbers: Volume IV

Posted by Brad Jenkins (@bradjenk) on February 10th, 2017

Here is the latest edition of our weekly review of the current ACC standings and team performances where we focus on which teams are playing better or worse than their records indicate. Each week we delve into advanced metrics to reveal a few interesting teams, player statistics and trends. This week we will compare some ACC player usage rates with offensive efficiency, seeing where some teams might benefit from a shift in possessions. Finally, we forecast how the final ACC standings may look given current efficiency margins, and what that means for teams’ postseason aspirations.

Note: All data is current for games played through Wednesday, February 8.

Current Standings

Syracuse‘s rise up the league standings is the story of the week. Jim Boeheim‘s club has now won five straight games by 10 points or fewer. The Orange’s close game effectiveness is why their record outshines a relatively low efficiency margin. For similar reasons, North Carolina continues to top the league standings despite trailing Louisville and Virginia in per possession performance. Florida State‘s efficiency margin now lines up nicely with its record after blasting its last three opponents by an average of 30 points per game.

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Inside the ACC Numbers: Volume III

Posted by Brad Jenkins (@bradjenk) on February 3rd, 2017

Here is the latest edition of our weekly review of the current ACC standings and team performances, where we focus on which teams are playing better or worse than their records indicate. Each week we delve into advanced metrics to reveal a few interesting teams, player statistics and trends. We are at the halfway point of conference play, so we now have more data points to look at – numbers which reveal some interesting trends. This week we will look at home versus away results for each team in the league so far this year. Finally, we forecast how the final ACC standings may look given current efficiency margins, and what that means for teams’ postseason aspirations.

Note: All data is current for games played through Wednesday, February 1.

Current Standings

Despite suffering some recent injuries to its backcourt, Louisville looks like the ACC’s best squad at the halfway point in conference action. The Cardinals’ efficiency numbers are certainly boosted by the 55-point shellacking that they put on Pittsburgh, but remember that North Carolina and Duke also put together dominant one-game performances against NC State and Georgia Tech, respectively – and they have played softer league schedules to date. Further down the standings we see some teams with records that do not correspond with their per possession performance. For instance, Virginia Tech may be 5-5 in the ACC standings but its overall play from an efficiency standpoint has only been slightly better than that of Boston College (against comparable schedules). Keep on eye on Clemson – the 3-6 Tigers have now won two in a row and four of their losses have come by five points or fewer or in overtime. North Carolina may have faced the league’s easiest slate so far, but that’s about to change. The Tar Heels have only faced two ACC foes with winning records so far, but their last eight contests will feature six such squads.

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ACC Home Court Advantage – Part II

Posted by Brad Jenkins (@bradjenk) on January 13th, 2017

This is the second part of a review of home court trends in the ACC. In Part I that published yesterday, we looked at overall home court winning percentage in ACC conference games over the last 15 years. Today we will look at the outcomes when ACC teams play each other twice in the regular season. In the days before major conference expansion, every league team played the others twice each year, a convention that ended when the ACC reached 11 members in 2005. The conference has since played an unbalanced schedule that features several home-and-home scenarios but mostly consists of one-time match-ups. TeamsPlayTwice2

As the above graph shows, we reviewed 312 double-meetings between ACC teams over the last 10 years. We broke the data into four discernible outcomes — sweeps by better and worse teams (as determined by KenPom‘s final rankings), and splits where home or away teams won both games. The data shows that there were 188 sweeps and 124 splits over the 10-year sample. The better team won both games 53.5 percent of the time; teams splitting games by defending their home floors occurred 32.7 percent of the time; while sweeps from the worse team and splits with the road teams winning made up the remaining 21.8 percent — on average, about twice per season.

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ACC Home Court Advantage – Part I

Posted by Brad Jenkins (@bradjenk) on January 12th, 2017

Through the first two weeks of conference play, ACC teams are an impressive 21-7 (.750) at home, flying in the face of a national trend. Over the past 15 years, there has been a slight but noticeable drop in home court advantage in college basketball. From 2002-09, teams won their conference home games at a rate of about 62 percent. It dropped to nearly 61 percent for the next four seasons from 2010-13, and then declined a bit further to approximately 60 percent over the last three campaigns. How has it looked in the ACC over the same span? This is the first of a two-part examination of home court advantage in the ACC.ConfHomeWin%15Yrs

As you can see above, the ACC at just over 63 percent ranks in the middle of the pack of the six power leagues over the last 15 seasons at defending home turf. Interestingly enough, home court advantage in the major conferences has not been as volatile as the nation overall. Read the rest of this entry »

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Inside The ACC Numbers: Volume II

Posted by Brad Jenkins (@bradjenk) on February 5th, 2016

Here is the latest edition of our weekly look at the current ACC standings and team performances, focusing on which teams are playing better or worse than their records indicate. Each week we also delve into some advanced metrics to find a few interesting teams or player stats and trends. This week we examine home court advantage within the league. Finally, we will forecast how the final standings may look and what that means for ACC schools’ postseason aspirations.

Note: All numbers are current for games played through Wednesday, February 3rd.

Current StandingsACCStand-Feb3Despite Monday night’s defeat at Louisville, North Carolina is still the ACC’s best team in both the standings and in points per possession (PPP) margin. Interestingly, even though much has been made of Duke’s struggles (the Blue Devils are currently in eighth place), it has outperformed every team but one above them in the standings. It appears that Mike Krzyzewski’s team’s inability to win the close ones is the real issue that must be fixed — Duke has lost all three of its contests that were decided by five points or fewer. Conversely, Clemson and Pittsburgh have each benefited by winning all three of their five-point or fewer margin games. Looking further down the standings, we see that N.C. State and Georgia Tech have basically performed at a level equal to Florida State and better than Virginia Tech, but they trail both of those teams in the current standings by at least two games. Heading into the back nine of conference play, future opponents should consider themselves warned — the Wolfpack and Yellow Jackets may barely rank above the likes of Wake Forest and Boston College in the standings, but they are both significantly better than the leagues’ worst two teams. Read the rest of this entry »

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Life on the Road in the ACC: Still Predictably Difficult

Posted by Jimmy Kelley on January 23rd, 2013

N.C. State is 15-4 overall and 4-2 in the ACC and has as much potential of any team in the conference this season. Led by powerful big men and electric wing players, the Wolfpack got their signature win when they knocked off Duke in the RBC Center a couple of weeks ago. Unfortunately, Mark Gottfried‘s crew has also picked up two very telling losses that speak to the existence of home court advantage in the ACC more than the Wolfpack’s inconsistent play.

Wake Forest Fans

Wake Forest fans at the Joel celebrate during their upset win over N.C. State on Tuesday. (AP Photo)

NC State currently has a 1-3 record on the road with two of those losses coming in their last three games. Losses at Maryland and Wake Forest look bad by themselves but when looking at them next to their lone road win — a five-point win at Boston College — the trend becomes upsetting. By this time of the season they have shed the “young team” moniker and their big-minute freshmen have actually been the bright spots for this team away from home. In their three ACC away games, the Wolfpack are shooting 43 percent from the field, down from their outstanding 51 percent total for the season. This is where the issue has been as Gottfried’s team is holding opponents relatively in check on defense with a negligible difference between home and away (41 percent on the road, 40 percent overall). Typically, teams that rely on their defense and scoring inside do well on the road (see Florida State last year), while teams that rely on shooting the ball well from the perimeter inevitably falter in hostile situations.

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Behind the Numbers: On the Issue of Home Cooking…

Posted by KCarpenter on January 12th, 2011

Conference play has started and it is a glorious thing. While non-conference play has its charms (who doesn’t love to see heavyweights go at it?), conference play has a special allure. Games are exciting when there is history, and that’s what conferences offer: a history of rivalries and past meetings that add a little bit of spice to each new meeting. And while old wounds may ache, it’s the new ones that sting: The best part of conference play is the home-and-away series; to better understand  the meaning of Duke and Ohio State’s close scrapes this past week, we need to understand home cooking.

Home Cooking, the Way Mom Used To Do...

“Home cooking.” When we talk basketball, we understand that this phrase is a euphemism for home-court advantage, a catch-all for the widely-discussed yet still mysterious phenomenon. Teams win more when they play on their home court. This is a fact. It’s the “why” that’s much more complicated, and there are many explanations. The “home cooking” euphemism itself is a partial explanation, metonymy for all the comforts of home: sleeping better in your own bed, being able to stick to your own routine, and, of course, literally getting to eat a home-cooked meal. Taken altogether, the psychological benefits of these things (coupled with the converse disadvantage of opponents lacking these things) is supposed to account for the edge that comes with playing at home. Of course, savvier or maybe just more cynical people hear “home cooking” and their minds turn to matters more sinister than mom’s meatloaf. “Home cooking” to these folks means referee bias in favor of the home team. The innocent and idealistic amongst us shudder at the thought, but the harsh reality is that referee bias is real.

Kyle Anderson and David Pierce in a 2009 article published in The Journal of Sports Sciences outline a series of systematic referee biases in men’s college basketball. In addition to being more likely to call fouls on the team with the lead and on the team with the fewest fouls, referees really do call more fouls on the visiting team. Also, oddly enough, these effects are more pronounced when the game is on national television. But, of course, home court advantage is bigger than just getting a few fouls going in favor of the home team, isn’t it?

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Does Home Court at the Final Four Help?

Posted by rtmsf on March 30th, 2010

With Butler’s magical run through the West Region to make its first-ever Final Four in its home city of Indianapolis, it got us thinking about whether having home court advantage this deep in the Tournament actually means anything.  It’s great to have the fan support on your side, but when you get this far into the season, all of the teams remaining have won games in hostile environments and are still standing for a more compelling reason (they’re really good!).

 

We decided to take a historical look at some situations in the last fifty years of the Final Four where we feel that there could have been a home court advantage of some kind for the Final Four and Championship Games.  We tried to limit our choices to a three-hour driving radius from the host venue, but we recognize that some fanbases will travel to the moon to see their team while others can’t be trifled with moving off the couch.  So bear with us.

A brief review found seventeen such instances in the last half-century (Butler @ Indy is #18).  Of special note is that there were only seven situations where a team got to play in its home state (including last year’s Michigan State @ Detroit situation) and only twice where a Final Four school played its games in its home city as Butler will do this coming weekend (UCLA both times).  Here’s the list of what you really want to know, and we’ll break down each instance below that to determine if we think HCA had an impact. 

Final Fours Involving Home Teams

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