Category Archives: counting things

Threes, luck, and volume in the NCAA tournament

March 1993: Jud Heathcote announces that Tom Izzo will be his successor as head coach at Michigan State. (Lansing State Journal)

Michigan State was the final team to reach the 2019 Final Four, thanks to a Kenny Goins three with 39 seconds remaining against Duke. By virtue not only of Goins’ heroics but also the fact that, on the same afternoon, Auburn beat Kentucky in overtime, we now know that using one-and-dones in college basketball doesn’t work.

With that question settled once and for all (I’m kidding; apparently that needs to be indicated), let us turn our attention to the gathering of old geezers in Minneapolis.

If we think of said geezers as four offenses and four defenses, one thing to be said about the collective is that, with the possible exception of the Texas Tech offense, all of these units are used to seeing three-point attempts — both for and against — flying every which way in the tournament. Indeed, Ken Pomeroy noted last week at The Athletic that the NCAA tournament has become strikingly perimeter-oriented these last few years. Continue reading →

Does getting a No. 1 seed matter?

(goduke.com)

On Selection Sunday morning, I wondered aloud why people still get so wrapped up in the question of who gets a No. 1 seed when it’s been six years now since Ken Pomeroy showed that it really doesn’t matter in basketball terms.

The first batch of answers to my query muddled the distinction between cause and effect. Yes, No. 1 seeds have a great track record of getting to the Sweet 16 and the Final Four and winning national titles. Top seeds also tend to be the best teams.

A far better response I received was that arguing about who should get a No. 1 seed is fun and, besides, receiving a top seed is a really cool honor. No disagreements there.

Perhaps we could talk about No. 1 seeds in that vein henceforth, more like an MVP award than as something dispositive to title hopes going forward. It’s a venerable honorific with some nice history behind it, and it provides its own ready-made zero-sum boxing ring for debate. That’s fine. Continue reading →

Welcome to the strongest Sweet 16 “ever”

In a normal year, Auburn would be a 50th percentile Sweet 16 team. In 2019, however, the Tigers rank No. 13 among remaining teams. (Wade Rackley, Auburn Athletics)

We’ve suspected for weeks now that there’s an unusually dense concentration of big swaggering capital-letter Great Team behemoths roaming our hoops landscape in 2018-19. Pick your flavor and choose your boundary line, but, speaking generally, this field’s top 10 or 11 teams together constitute an oligopoly of hoops hegemony the likes of which we don’t often get within the confines of a single season.

Well, it just so happens that all of those teams, every one of them, won two games during the first weekend of the 2019 NCAA tournament. Not to be outdone, so, too, did the tier of teams right below the big guns.

When you put chalk together with behemoths, you get a Sweet 16 that fairly blows its predecessors out of the statistical water.

thechart

Continue reading →

Your 2019 bracket requires knowledge of shot volume

(gozags.com)

Shot volume is just one half (how often you shoot) of one half (offense) of basketball, so it’s not the alpha and omega of the sport by any means. Then again, it’s rather under-discussed.

You can’t show shot volume on YouTube or Synergy, coaches can’t diagram a play specifically to get an offensive board, volume doesn’t get “chess match” heuristic privileges, and avoiding turnovers is supposed to occur as a matter of course.

That’s all well and good, but, just like with shooting accuracy and defense, some teams are exceptionally good at shot volume. If we want to understand these teams, we should consider the frequency with which they attempt shots.

Shot volume index for tournament teams
Turnover percentage, offensive rebound percentage, and shot volume
Conference games only: ACC, Big 12, Big East, Big Ten, Pac-12, SEC, American, WCC

                         TO%     OR%     SVI
1.  Gonzaga             12.9    30.2    101.8
2.  LSU                 16.9    38.4    101.0
3.  Cincinnati          16.1    36.1    100.8
4.  Purdue              15.8    34.6    100.5
5.  Tennessee           15.5    31.1     99.2
6.  Houston             16.9    34.7     99.2
7.  North Carolina      17.1    34.6     99.0
8.  Virginia            15.4    30.2     98.9
9.  Villanova           15.1    29.1     98.8
10. Saint Mary's        16.8    33.0     98.6

Continue reading →

Tuesday Truths: Final reality

Welcome to this season’s last installment of Tuesday Truths, where I looked at how well 108 teams in nine conferences did against their league opponents on a per-possession basis.

Come back, Zion

This post has nothing to do with Duke or Zion Williamson, Tuesday Truths just really wants to see what the freshman can do at full speed in an NCAA tournament that should be heavily populated by swaggering 2015-style beastly opponents. Hurry back, sir. (USA Today)

Final results, conference games only
Pace: possessions per 40 minutes
PPP: points per possession Opp. PPP: opponent PPP
EM: efficiency margin (PPP – Opp. PPP)

ACC                       W-L   Pace    PPP   Opp. PPP    EM
1.  Virginia             16-2   60.4    1.16    0.93    +0.23
2.  North Carolina       16-2   74.3    1.12    0.97    +0.15
3.  Duke                 14-4   71.9    1.09    0.97    +0.12
4.  Florida State        13-5   67.9    1.04    0.97    +0.07
5.  Louisville           10-8   68.2    1.04    0.97    +0.07
6.  Virginia Tech        12-6   63.3    1.09    1.03    +0.06
7.  Clemson               9-9   66.0    0.99    0.95    +0.04
8.  NC State              9-9   70.7    1.05    1.04    +0.01
9.  Syracuse             10-8   67.3    1.00    1.00     0.00
10. Miami                6-12   67.1    1.01    1.09    -0.08
11. Boston College       5-13   66.9    0.98    1.09    -0.11
12. Notre Dame           3-15   64.8    0.97    1.08    -0.11
13. Pitt                 3-15   66.7    0.95    1.08    -0.13
14. Georgia Tech         6-12   66.3    0.91    1.04    -0.13
15. Wake Forest          4-14   68.5    0.93    1.13    -0.20

AVG.                            67.4    1.02

Clemson is the anti-Indiana. Unlike the wacky and erratic Hoosiers, the Tigers were more or less utterly predictable based on the quality of the opponent.

Indeed, not to put too fine a point on it, Brad Brownell’s group effectively strip-mined the bottom of the ACC for that borderline-Virginia Tech-like scoring margin of theirs…. Continue reading →

Tuesday Truths: AWOL from Bubble Watch edition

Welcome to this season’s penultimate installment of Tuesday Truths, where I look at how well 75 teams in six conferences are doing against their league opponents on a per-possession basis.

I don’t think Virginia gets enough credit for its defense

(virginiasports.com)

Through March 4, conference games only
Pace: possessions per 40 minutes
PPP: points per possession Opp. PPP: opponent PPP
EM: efficiency margin (PPP – Opp. PPP)

ACC                       W-L   Pace    PPP   Opp. PPP    EM
1.  Virginia             15-2   60.4    1.16    0.92    +0.24
2.  North Carolina       14-2   74.2    1.13    0.98    +0.15
3.  Duke                 13-3   71.4    1.11    0.97    +0.14
4.  Louisville           10-7   68.6    1.04    0.96    +0.08
5.  Florida State        11-5   68.6    1.04    0.97    +0.07
6.  Virginia Tech        11-5   63.3    1.09    1.03    +0.06
7.  Clemson               7-9   66.1    0.98    0.95    +0.03
8.  Syracuse             10-7   67.3    1.02    1.01    +0.01
9.  NC State              8-8   71.1    1.05    1.07    -0.02
10. Miami                4-12   67.2    1.00    1.08    -0.08
11. Boston College       5-11   66.4    1.00    1.09    -0.09
12. Notre Dame           3-13   65.2    0.97    1.09    -0.12
13. Georgia Tech         5-12   66.3    0.91    1.04    -0.13
14. Pitt                 2-14   67.2    0.95    1.09    -0.14
15. Wake Forest          4-12   68.3    0.93    1.15    -0.22

AVG.                            67.4    1.03

Perhaps this falls under the heading of a blinding flash of the obvious the day after a team sinks 18 shots from beyond the arc (in a game with 59 possessions, if this had been a North Carolina tempo, madre de Dios), but it is of course long past time to retire the “I don’t think Virginia gets enough credit for its offense” announcer trope.

Actually, at the moment, said offense is (very slightly) better than the D relative to the respective ACC means. Continue reading →

On rebounding

(Mike Carter, USA Today Sports)

We live at a time of televised analytic plenty, yet, somehow, you still see rebound margin numbers flung up on the screen during this or that telecast in 2019. That makes me grit my teeth at the blatant luddite behaviors on display, of course, and, well, I’m right to do so. Rebound margin really is meaningless, an ersatz and mislabeled tribute paid to teams that alter shots yet refuse to go for steals and/or charges (with all of the above, preferably, transpiring at a fast pace).

In partial defense of my well-intentioned graphic-making brethren and sistren, however, I will additionally confess to the following. I’ve been mulling just how peculiar rebounds really are for a while now, and (this may say more about me than about rebounding) I’m still not sure I’ve found solid ground on this particular subject.

Here’s what I think I think….

I’m not a fan of whole-season rebound percentages in college basketball
Leave it to the sport’s endearing and enduring idiosyncrasies to overturn perfectly sound axioms regarding sample size. Continue reading →

John Gasaway

On hoops and lesser matters