Can Nba Use Zone Defense

Maria Johnson
• Sunday, 17 January, 2021
• 8 min read

A couple of years ago, a zone defense, unless it was being played by the Dallas Mavericks, looked completely bizarre in an NBA game. According to Synergy play-type tracking, 18 of the 30 teams have played at least 100 possessions of zone through Thursday.

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(Source: realsport101.com)


And a well-timed zone possession could be just what a defense needs to take the opponent out of its rhythm. “There’s a reason teams don’t run it all the time,” Warriors coach Steve Kerr said.

The Dallas Mavericks have been playing a healthy share of zone for several years now. When they won the championship nine years ago, the Mass played almost 800 possessions of zone in the regular season.

And this year, they’ve played almost twice as much zone (764 possessions, according to Synergy) as any other team. The game turned when Dallas went scoreless on its first five possessions (all against zone) of the fourth quarter, but that was with both Luka Ionic and Kris taps Mornings off the floor, and the Mass got some decent shots in that stretch.

The players at the top of the zone are high and active, running shooters off the 3-point line. The Toronto Raptors have played the second most possessions of zone this season.

And they’ve been slightly more successful with it (0.94 points allowed per possession, seventh in the league) than the Heat (0.97, 10th). Raptors coach Nick Nurse was asked about the personnel needed to be successful playing zone at a high volume.

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(Source: www.nytimes.com)

Interestingly, Nurse’s Raptors are the team against whom zone defenses have been most effective. According to Synergy, the champs have scored just 0.76 points per possession against zone, compared to 0.97 against man-to-man.

If it’s a team that that does it sporadically, and they do it to take away your timeout, you’d like to have one that works against man and zone. “The hard thing to convince NBA players is that, even if they are in a zone, still run the play that we called.

Brett Brown, Mixers head coach: I want to run, by and large, the same thing. It’s ‘Run the play, and this is what you’re going to be looking at if they’re in a zone.’ Because you can really scout and know if teams do that more than they don’t.

Taylor Jenkins, Grizzlies head coach: “Obviously, when it’s thrown out as a surprise, I try to get the guys to just execute the play. But if we see zone over a period of possessions, we definitely have two or three things that we go to, maybe some different screening angles.

But for us, we kind of fall back on what we do and just emphasize something a little more, in terms of getting in and getting to the second side.” Steve Kerr, Warriors head coach: We usually just run the same play.

zone defence nba
(Source: betterbasketball.com.au)

Brooklyn played just five possessions of zone against Miami last week, probably because the Heat got into the teeth of the defense so easily… When you have a brilliant passer who’s 7-feet tall, putting him in the middle of the zone seems like a good formula for success.

THE Los Angeles Lakers entered the fourth quarter of Game 3 of the Western Conference finals trailing the Denver Nuggets by 18 points when Lakers coach Frank Vogel called for a zone defense -- a strategic move NBA coaches once considered a last resort, but one that is becoming increasingly common this postseason. The Lakers used their zone to rack up five steals in less than three minutes, cutting the lead down to as little as three points.

And while the Nuggets recovered to win the game, the defensive switch nearly led to the second-biggest comeback of LeBron James lengthy playoff career. The past two seasons have produced the most efficient offense on record behind ever-growing numbers of 3-point shots.

“I think that the offense changed drastically, and the defense stayed pretty much the same for a while,” Toronto Raptors coach Nick Nurse said, “and now I think the defense is starting to have to adjust to such a different and drastic style of offensive play.” AS RECENTLY AS two seasons ago, the NBAzonedefense -- which has been allowed since 2001-02, when the league removed the “illegal defense rule preventing its use -- had all but gone extinct.

After peaking at 3% usage during the 2009-10 season, zone was used for just 638 plays in 2017-18, 0.2% of all possessions, according to Synergy Sports data. That was the culmination of six seasons of decline after zone defenses were more common in the NBA from 2009 through 2012, highlighted by the Dallas Mavericks zone helping them upset the heavily favored Big Three Miami Heat in the 2011 NBA Finals.

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(Source: www.youtube.com)

Seven years later, Miami played a key role in bringing the zone back in vogue. On Dec. 20, 2018, the Heat used a zone defense to slow down reigning MVP James Harden in a nationally televised win over the Houston Rockets.

Though Heat coach Erik Spectra dismissed the notion that there was any grand strategy behind turning to a zone a handful of games earlier -- “We did it because our man wasn't working,” he said -- other coaches took notice of how much zone Miami was playing. The Heat used zone on more plays during the 2019-20 regular season, 802, than all 30 NBA teams combined in either 2016-17 or 2017-18.

“And Erik is a terrific coach, so it calls your attention to it, and then you have to figure out: Is this applicable to our team in some way?” “Teams have tinkered with zone rules and tinkered around the three-second rule for the middle man, so it's not your typical college 2-3 or 3-2 zone anymore,” said Detroit Pistons coach Diane Casey, who was the architect of the Mass' 2011 defense.

Spectra has also changed where those players are by putting two athletic forwards on the perimeter in the Heat's 2-3 zones, with the team's smaller guards playing on the wings in the back line. Snyder borrowed that innovation when Utah implemented a zone defense at midseason.

“Having more length at the top, that player has an opportunity to impact the offense two different ways,” Snyder explained. “It's such an interesting contradiction,” Washington Wizards coach Scott Brooks said.

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(Source: bleacherreport.com)

When the Mavericks used zone in the 2011 NBA Finals with Casey as their defensive coordinator, they were exposing a Miami weakness. At that point, before adding Shane Battier and unleashing Chris Bosh as a 3-point shooter, the Heat had a shortage of shooting.

Yet, there's a paradox to all these 3-pointers: In a counterintuitive twist, they've made controlling the area around the basket more important for opposition defenses. The Los Angeles Lakers defeated the Miami Heat 4-2 in the 2020 NBA Finals to claim their 17th championship.

Conversely, four of the top 10 (including Milwaukee and Toronto) were among the eight teams that allowed the most 3-point attempts. The increased emphasis on protecting the rim, and the zone's effectiveness in doing so, has led three of the four teams in the conference finals to use zone this round.

UNLIKE IN COLLEGE basketball, where legendary coaches such as Syracuse's Jim Botham and retired longtime Temple coach John Chaney built their defenses around exclusive use of 2-3 zones, NBA teams have found it more effective as a counterpunch. He went back to it again during this year's Eastern Conference semifinals against Boston to try to slow down Emma Walker after he tore apart Toronto's defense early in the series.

After outlasting the Raptors, the Celtics have struggled against Miami's 2-3 zone in the conference finals. In a series in which the Heat's three wins have come by a combined 11 points, those possessions loom large.

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(Source: terezowens.com)

Between players getting more and more creative with the ball in their hands, an influx of quality shooters at every position on the court, and rules being created and enforced to aid offense, defenses are left in a nearly impossible spot. “It's going to be hard for defense to trump offense like it used to in the late '90s,” former Philadelphia 76ers coach Brett Brown said earlier this year.

It would be helpful for Miami if center Bam Debate, who missed Game 2 with a neck injury, can play. He is the key to making Miami’s zone defense work as a rim protector and communicator along the back line of the zone.

On the other hand, the Lakers just have too much talent with LeBron James and Anthony Davis to play man-to-man. “For us, it's a scheme that we've used all season long,” Miami coach Erik Spectra said.

Coaches have slowly reinserted it, and Carlisle's Mavericks used it against Miami in the 2011 Finals. The use of zone has increased just a small percentage, according to data tracking sites Synergy and Second Spectrum.

Toronto coach Nick Nurse frequently uses zone defenses. “A lot of times when you’re using zone, it’s just to disrupt the rhythm, just to change the flow of what’s happening.

david lee golden mask warriors state shooting curry 1500 stephen bleacherreport
(Source: bleacherreport.com)

It forces defenders to collapse on the ball-handler, which creates shots for shooters at the 3-point line. Los Angeles has taken advantage of this by getting the ball to James in that area, and he is a gifted playmaker.

The Lakers find the seams in the zone especially with Anthony Davis cutting to the rim for dunks. “It’s a hard zone to play against,” Celtics coach Brad Stevens said.

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