Archives For Erik Spoelstra

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Defense is the NBA’s dark art. At this year’s MIT Sloan Sports Analytics Conference in Boston this past weekend, Kirk Goldsberry and Eric Weiss presented a paper on what they termed The Dwight Effect. Using data from STATS, LLC’s SportVU camera system, they sought to account for more than stats like blocks and opponent field goal percentage in measuring interior defense. Although they admitted their approach was still mostly one-dimensional, their work began to incorporate the idea of a player like Dwight Howard changing shots without even doing anything—in essence, him being on the floor warps the space around him defensively because players don’t even want to come into the paint.

This distorting effect that good defense can have on another team’s offense was on full display last night as the Heat brutalized the Timberwolves in Minnesota. As you can see just from the final score, the Heat didn’t look great offensively. Spoelstra said as much in the tunnel after the game, conceding that the offense was ragged, but maintaining that their identity came from their defense. Continue Reading…