Nichols and Dime: How the Shooting Abilities of Point Guards Affect Offenses

Although they all generally have the same duty (run the offense!), different point guards in the NBA possess a variety of skills. Whether they are big or small, quick or fast, or aggressive or passive, they come in all shapes and sizes. As it turns out, some of the game’s best shooters run the point. Is the ability to shoot three-pointers well a key skill for point guards? Today I’ll take a look.

Using the lineup data at http://www.basketballvalue.com, I’ve split the lineups into three groups: those featuring a point guard who shoots 40% or better on threes, those featuring one who shoots 30% or less, and the remainder. For each group, I’ve calculated the average Offensive Rating. In addition, the lineups are split between those at home and those on the road. The results are in the graph below:

Point Guard Shooters
25.6% of home lineups feature a point guard shooting better than 40% on threes, and 30.05% feature one shooting less than 30%. On the road, those numbers are 25.62% and 30.32%, respectively.

It appears as though the ability of your team’s point guard to shoot the three well is very important. Overall, the difference is more than three points per 100 possessions. Similarly, if your point guard struggles with his outside shot, your offense will struggle.

Beyond that, I don’t want to say too much. It’s too easy to make bold statements without considering some of the underlying factors, so I’ll just present the data as is. Feel free to draw your own conclusions, though.

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Good points about Davis and Stockton. And remember, the study only cares about three point percentage, not attempts, so someone like Davis is more likely to fall into the "poor shooter" category than the "excellent" one.

Stockton's career 3-pt percentage is .384, he was pretty good from beyond the arc.. although he didn't take a whole lot of them.

Interesting. Wonder what Mike Conley and Shawn Livingston are working on this Summer?

On the flip side, arguably the 3 best PGs of all time (Magic, Stockton, Kidd) were/are not great 3 pt shooters.

I'd also guess that having a PG who's in love with the 3 is a huge detriment to any team's offensive flow. Baron Davis comes to mind.

Jon,

What your continued research should eventually unearth is that 3FG% at the PG position is a critical factor in a team's ability to win basketball games. It's not the amount of points that are scored by the PG on 3PT shots that matters most but the fact that a team's PG is perceived by his coach and teammates, and the opposition's coach and players, to be someone who has the ability to knock down open 3PT shots at a high [adequate] percentage when presented with those opportunities.

Good coaches the world over have been aware of this very fact for a long time.

e.g. The fewer 3's taken by a PG the better, as long as that PG is capable of making the ones he does take at a solid percentage, when it comes to winning/losing basketball games and most importantly league championships.

Jon,

Nice data but I don't feel like we gain much from it. It makes sense that a good three point shooter regardless of position would increase his team's offense efficiency. Still, it's interesting but I think the relationship between these data is merely correlation at best.

I've done this with one other position and I can tell you that it in fact does not have a positive influence across the board. I'll be publishing that at my site (Basketball-Statistics.com) in a few days...

How many teams have guards that shoot better then %40?

Jon--

I would guess that better shooters would positively affect offensive efficiency across the board. Are you planning to extend the study to see if this is true and, if so, whether the point guards demonstrate the greatest influence?