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Tripping on college basketball

No, I don't really know what it would be like to do that. But I've just had what felt like an out-of-this-world college basketball statistics experience. It's certainly nothing like anything I've ever felt before.

See, I was looking at the Basketball State box score for last night's St. Joe's-Syracuse game and all of a sudden... whoa. I was moved.

Okay, I have to put in a disclaimer here. Basketball State is the brainchild of Kyle Whelliston. He's the guy who writes The Mid-Majority (including some astoundingly good travelogue essays), and more than occasionally serves as a pundit for ESPN.

He's also a known reader of this blog and a guy I know as more than a passing acquaintance (though I might never live down interviewing him).

But lest you think I'm shilling for him, fear not. He has not bribed me at all to praise his site -- in fact, I stumped up the $20 for a subscription to his stuff. And so should you, not least because I'm going to link to his site a lot.

He's got a lot of really interesting data comparing teams, conferences, players, and so forth. It's a bit denser (and in a smaller font) than Ken Pomeroy's site, but there's some really amazing things.

Among the cooler toys are a map showing every basketball game in the country on a given day and a nifty way of graphically representing how good all the teams in a conference are on offense and defense (this is the A-10's for last season).

Anyway, here's what I've figured out so far about last night's game that you won't find in the box scores in the Inquirer and Daily News:

-- St. Joe's had a higher points-per-possession average, 1.13 to 1.06. That's a pretty big differential as this thing goes.

-- St. Joe's had a lower turnover rate (TOs per 100 possessions), 20.9% to 23.0%.

-- The teams were almost dead even in the percentage of baskets that were assisted: 70.8% for St. Joe's and 70.4% for Syracuse. That's a little less than three out of every four. I'm inclined to think that for two teams with young backcourts, that's pretty good.

-- Although St. Joe's shot a lower 3-point percentage (42% to 43%) and FG percentage (44% to 46%) than Syracuse, the Hawks had a higher effective FG% (which gives 1.5x weight to threes), 54.6% to 50.8%.

-- Despite that, Syracuse had almost seven more statistical possessions than St. Joe's, 74.0 to 67.1.

-- That's because the Orange had more of all the factors that go into the possessions formula (field goal attempts + turnovers + [0.475 x free throw attempts] - offensive rebounds) than the Hawks did.

-- St. Joe's had more "points per weighted shot," a measure of how efficiently a team scores, by 1.13 to 1.06. But Syracuse had a higher "floor percentage," which measures the percentage of offensive possessions in which a basket is scored, 50.0% to 47.1%.

Now, I've thought all this time that scoring efficiency and scoring on a percentage of possession basis were the same thing. So if there any lawyers or law school students out there -- or if Kyle himself stumbles across this when not sleeping for 84 minutes -- can explain the difference between the following, please do:

Floor % - Floor Percentage. Measures the percentage of offensive possessions in which there is at least one point scored.

PPWS - Points per Weighted Shot. Measures how efficiently a player translates field goal attempts and free throw attempts into points. Formula: PTS/(FGA + (0.475 x FTA))

UPDATE: The best way to describe it, apparently, is that Floor % is the number of made baskets as a percentage of shot attempts, while PPWS is the number of points as a percentage of shot attempts.

That explains why PPWS is a number greater than 1, because you score more points than your number of attempts (unless you miss a ridiculous number of shots). It also explains why St. Joe's had a higher PPWS, as they made 11 three-pointers to Syracuse's 6 even though the percentages were similar.

My preferred reason for why the Hawks lost last night, though, has nothing to do with any of what I just wrote:

That was one clutch shot by Jonny Flynn.

Okay, I'm off to see if Davidson can keep North Carolina from being No. 1 when the Tar Heels come here next month.

And by the way, the hoops on TV start bright and early at 9 a.m. tomorrow with Houston against Eric Maynor's Virginia Commonwealth on ESPNU. The game is in the same Puerto Rico tournament in which Temple plays Providence at 2:30, also on ESPNU.

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Author

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Jonathan Tannenwald is a producer with Philly.com.

I fell in love with the Big 5 at first sight upon moving to Philadelphia in 2002. At various points in my journalistic career, I've covered all six of the region's Division I teams. During that time, I've eaten many soft pretzels from the Palestra's concession stands, which is how this blog got its name.

In addition to the blog, I host and produce the Inquirer's College HoopsCast. It's a weekly podcast that features all the latest news and analysis from around local and national college basketball. Regular guests include Inquirer writers Mike Jensen, Joe Juliano and Mel Greenberg.

I also occasionally contribute to the Inquirer's women's basketball weblog, Women's Hoops Guru. If you've come here from there, this blog deals mostly with the men's side of things, though I do write about women's basketball and other sports when they fit in.

When not focusing on college hoops, I host and produce the Inquirer's PhilliesCast with Phillies beat writer Todd Zolecki, and can occasionally be found behind the camera shooting videos of the Eagles, other professional sports teams and the tiger cubs at the zoo.

One of the great things about City Series basketball, and college basketball as a whole, is its sense of community. So I want to hear from you. Post a comment or send me an email by clicking on my name above. But don't be profane, and don't post hate speech. I'm sure you'd like to take a shot at that commenter on the opposite side of a rivalry from you, or say something nasty about a team you don't like. But this blog isn't the place for it. Thanks.

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    This page contains a single entry from the blog posted on November 14, 2007 7:43 PM.

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