NBA referees are biased

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Yes, NBA referees favor stars and swallow their whistles late in games.

That has been the conventional wisdom from fans for years, with the NBA of course denying that. But that is the beauty of the MIT Sloan Sports Analytics Conference — those “geeks” that fans deride for their fancy stats (“You can’t measure heart, man!”) can turn their attention and math skills on to issues like the refs.

And prove the fans were right. Kevin Arnovitz (and Henry Abbott) from TrueHoop is there (with fantastic coverage of the entire fascinating event) and breaks it down:

The study compared how likely officials were to call loose ball fouls on stars compared to non-star NBA players they were contesting in loose ball foul situations. The results were found over a three-year study in which 1.5 million plays were examined in 3,500 plus games. “Star” criteria was based on players’ MVP votes. The results: 42 percent of loose balls fouls called on stars in “regular” situation compared to 57 percent of the time on non-stars in plays. The numbers show a much more dramatic shift, favoring the star players when they are in “foul” trouble with only 28 percent of foul calls being called on them, a huge drop from the earlier 42 percent.

The other study involving the NBA involved a look at subjective calls (offensive fouls, traveling, double dribble, etc.) being made compared to non-subjective calls (kick ball, 24-second violation, etc.) over the course of the game. The tendency to want to let the players decide the game in close as well as late game situations showed itself once again in the form of omission bias, with the rate of calls falling dramatically from the first half to the second half. Another even sharper drop in subjective calls was apparent in overtime games with the subjective or “judgment” calls. The non-subjective call rates remained very level over those time spans.

Hey fans — the math guys are not just good at proving that the refs have issues. Those advanced stats you deride, they are right most of the time, too. Just a little something to think about.

Akron store already selling “Stay Home 23” shirts, hats as LeBron decision looms

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We’ve seen this movie before.

There is all sorts of buzz around the league that LeBron James has one foot out the door in Cleveland. While people around LeBron denied he the rumor he is “100 percent” leaving, good luck finding any league source who thinks he is staying put next summer. Nothing is set in stone, his options — including staying — remain open, but we’ve all been down this road before.

The hometown fans are going to do their part to urge LeBron to stay.

Fan sentiment has some pull with LeBron (he came back to win the city a title). However, what matters more is a sense of a plan to keep the Cavaliers as title contenders for the coming years — and that is more than just Dan Gilbert paying the tax. The Cavs did nothing this summer that got them closer to beating Golden State, and while they swung for the fences with Paul George, what they really needed was wing defenders and athletes, and they didn’t get those either. Luc Mbah a Moute signed a one-year deal for the minimum somewhere else. Instead, Cleveland overpaid Kyle Korver.

Despite all that, the Cavs remain the team to beat in the East. If Cleveland gets to the Finals — LeBron’s eighth in a row — and they win or make it close, he may see staying as his best option. A season can be a lifetime in the NBA in terms of shifting attitudes. Still, I wouldn’t bet the rent on it.

Marshall Plumlee gets camp invite, partially guaranteed contract from Clippers

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The Los Angeles Clippers have 14 fully guaranteed contracts on their roster, plus a partial guarantee for DeAndre Liggins (who likely is on the roster opening day). They also are pretty much set at center with DeAndre Jordan and Willie Reed (plus when they go small they can play Blake Griffin there, something I wish they’d do a little more).

That said, Doc Rivers — just a coach now — needs bodies for camp, so in comes former Duke star and Knick Marshall Plumlee, reports Adrian Wojnarowski of ESPN.

Plumlee played in 21 games for the Knicks last season, logging a total of 190 minutes. He bounced between New York and the D-League Westchester Knicks, when down he averaged 12.3 points and 9.8 rebounds a game.

He’s not making the Clippers’ squad (barring injury), but he could show well and get noticed by other teams. Over the course of a season, there will be a need for bigs as guys go down injured, Plumlee is getting a chance to show how his game has developed. And he makes some money in the process.

Kawhi Leonard is smiling, and that confuses Manu Ginobili (PHOTO)

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Much like Kevin Durant, it appears that Kawhi Leonard is having a great summer.

In fact, this appears to be the Summer of Kawhi Smiling. Which, according to one of his longtime teammates, is a bit confusing.

When the Spurs posted a photo of Leonard with a big old grin on his face to their Twitter feed recently, San Antonio legend Manu Ginobili responded asking the team whether something was up.

Specifically, Ginobili said that he had seen more photos of Leonard smiling in the past two days then he had in six seasons as a teammate.

Via Twitter:

You can leave an anonymous tip about why Kawhi Leonard is smiling so much by contacting the produce manager at your local H-E-B.

Kobe is the Lakers’ all-time leader in steals (and other trivia rookies don’t know)

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“He played 20 years … I mean, yeah I guess.”

That’s what Los Angeles Lakers rookie Lonzo Ball had to say in this video after learning that Kobe Bryant was the all-time leader in steals for his franchise. You have to hand it to him, it is a little surprising. Even more surprising is that Bryant has 220 more than Magic Johnson at No. 2.

In a video posted to YouTube by Complex on Saturday, rookies tried to answer questions similar to the one Ball pondered over, like what team drafted their head coach, who the NBA all-time leading scorer is, and what day the first game of the season starts on.

A lot of the responses were pretty funny, including the guys getting wrong what year Adam Silver became NBA commissioner. Poor David Stern has already been forgotten about!

Meanwhile, Ball looked the sharpest. He’s going to come in handy when the Lakers play pub trivia.