Efficiency Ratings: Michigan St.

Using the NBA Efficiency Rating Formula, TDD tracks the best statistical performances of the season

A quick way NBA coaches measure a player's game performance is by evaluating his efficiency. In order to find a player's efficiency the following formula is used:

((Points + Rebounds + Assists + Steals + Blocks) - ((Field Goals Att. - Field Goals Made) + (Free Throws Att. - Free Throws Made) + Turnovers)).

For example, compare the following stat lines:

Player A: 17 points (5-of-22 FG, 7-9 FT), 8 rebounds, 6 assists, 3 steals, 4 turnovers.

Player B: 15 points (5-8 FG, 3-4 FT), 4 rebounds, 7 assists, 2 turnovers

Who had the better game? Using the NBA formula player B, who hit five of eight shots and committed two turnovers registered a +20 efficiency total while Player A who missed 17 shots and had four turnovers had just a +11 rating.

For reference, last year LeBron James posted the two most efficient games of the season with a +54 (37 points on 11-of-17 FG & 9-10 FT, 12 rebounds, 11 assist, 2 steals, 1 block, and 2 turnovers) and +50 (40 points on 16-of-23 FG & 6-6 FT, 8 rebounds, 8 assist, 1 steal, 2 blocks, and 2 turnovers) rating.

In their first game against a high major opponent, the Blue Devils used a balanced but blue collar attack to build a 20 point cushion before holding off a late Michigan State rally to win 74-69. The victory earned head coach Mike Krzyzewski his record setting 903rd win, while also featuring a coming out part of sorts for Dawkins who finished with 26 points. The performance from the junior guard was needed as several of the early season efficiency leaders struggled against the rugged Spartan defense.

v. Michigan State
(change from previous game)

Per minute Efficiency
  • Austin Rivers -0.087
  • Seth Curry 0.737
  • Andre Dawkins 0.684
  • Mason Plumlee 0.219
  • Miles Plumlee 0.071
  • Alex Murphy 0.00
  • Ryan Kelly 0.633
  • Josh Hairston -0.200
  • Tyler Thornton 0.000
  • Quinn Cook 0.000
  • Michael Gbinije 0.000

Notes: Andre Dawkins stole the show with some dynamite three point shooting at critical times. For the game Dawkins finished with 26 points and three rebounds to go with four steals. He was efficient with his shooting (8-of-15 overall) and managed to stay on the floor for extended periods for the first time all season. Fellow guard Seth Curry put together his best overall performance of the season with 20 points, seven rebounds, four assists, and four steals. The two guards combined for a +54 efficiency rating on the night and were clearly the difference between the two teams.

In the post Duke struggled to find any consistency, but the Plumlee brothers both had moments of effectiveness. Mason Plumlee registered his lowest rating of the season with a +7, a score that was brought down tremendously by downturns in his points (7), rebounds (5), and assists (1) compared to previous games. Meanwhile, captain Miles Plumlee managed to factor in on the boards (4) but not in the scoring column (1) while struggling with turnovers throughout the evening. Both players did alter several shots and helped hold the MSU FG pct low for most of the game.

Super sixth man Ryan Kelly continues his steady performances and may be making a case as the nation's top sub. Kelly didn't miss a shot all night (FG & FT) and finished with 14 points and four rebounds. Kelly again posted a double digit efficiency rating (+19) and continues to move up the seasonal rankings.

One Blue Devil who struggled mightily was Austin Rivers. The freshman's first two performances had been inconsistent at times and Tuesday night's game saw his numbers fall off a cliff on a big stage. Rivers posted a -2 rating (a 20 point drop from the last game) while being limited to just 23 minutes after he shot just 1-of-7 from the field and committed two turnovers. In addition to his shot not falling, Rivers failed to factor much into the defensive statistics by registering just 1 rebound and one steal in 23 minutes.


Throughout the season TDD will track the various highs and lows using the formula.

Ten Most Efficient Performances

  • Seth Curry +28 (v. Michigan St.)
  • Andre Dawkins +26 (v. Michigan St.)
  • Mason Plumlee +25 (v. Belmont)
  • Ryan Kelly +19 (v. Michigan St.)
  • Austin Rivers +18 (v. Presbyterian)
  • Mason Plumlee +18 (v. Presbyterian)
  • Miles Plumlee +16 (v. Presbyterian)
  • Tyler Thornton +14 (v. Belmont)
  • Ryan Kelly +14 (v. Belmont)

Five Least Efficient Performances*

  • Austin Rivers -2 (v. Michigan St.)
  • Josh Hairston -1 (v. Michigan St.)
  • Quinn Cook -1 (v. Belmont)
  • Andre Dawkins +0 (v. Belmont)
  • Michael Gbinije +2 (v. Presbyterian)
*- players must play at least 5 minutes or factor into the box score to be considered for per game E-ratings

Ten Most Efficient Per Minute Performances

  • Mason Plumlee .900 (v. Presbyterian)
  • Austin Rivers .857 (v. Presbyterian)
  • Josh Hairston .813 (v. Presbyterian)
  • Ryan Kelly 0.789 (v. Presbyterian)
  • Seth Curry 0.737 (v. Michigan St.)
  • Mason Plumlee .714 (v. Belmont)
  • Miles Plumlee 0.696 (v. Presbyterian)
  • Andre Dawkins 0.684 (v. Michigan St.)
  • Ryan Kelly 0.633 (v. Michigan St.)
*- players must play at least 5 minutes or factor into the box score to be considered for per game E-ratings

Five Least Efficient Per Minute Performances

  • Josh Hairston -0.200 (v. Michigan St.)
  • Quinn Cook -0.125 (v. Belmont)
  • Austin Rivers -0.087 (v. Michigan St.)
  • Andre Dawkins 0.000 (v. Belmont)
  • Andre Dawkins 0.182 (v. Belmont)
*- players must play at least 5 minutes or factor into the box score to be considered for per game E-ratings

Cumulative Season ratings for the Blue Devils. (E/game)*
  • Seth Curry +56 (18.6)
  • Mason Plumlee +50 (16.6)
  • Ryan Kelly +48 (16.0)
  • Austin Rivers +31 (10.3)
  • Andre Dawkins +30 (10.0)
  • Miles Plumlee +23 (7.7)
  • Tyler Thornton +19 (6.3)
  • Josh Hairston +13 (6.5)
  • Quinn Cook +9 (4.5)
  • Michael Gbinije +2 (2.0)
  • Alex Murphy --
*- players must play at least 5 minutes or factor into the box score to be considered for per game E-ratings. (Gbinije 1, Hairston 2, Cook 2)

Cumulative Per Minute Season ratings for the Blue Devils. (Eseason/SeasonMinutes)*

  • Ryan Kelly 0.623
  • Seth Curry 0.622
  • Josh Hairston 0.619
  • Mason Plumlee 0.575
  • Miles Plumlee 0.426
  • Andre Dawkins 0.423
  • Austin Rivers 0.378
  • Quinn Cook 0.321
  • Tyler Thornton 0.306
  • Michael Gbinije 0.143
  • Alex Murphy ----
*- players must play at least 5 minutes or factor into the box score to be considered for per game E-ratings. (Gbinije 1, Hairston 1)

Tracking the most and least efficient performances by player
  • Austin Rivers +18 / -2
  • Seth Curry +28 / + 13
  • Andre Dawkins +26 / 0
  • Mason Plumlee +25 / +7
  • Miles Plumlee +16 / +1
  • Ryan Kelly +19 / +14
  • Josh Hairston +13 / -1
  • Tyler Thornton +14 / 0
  • Quinn Cook +11 / -1
  • Michael Gbinije +2 / --
  • Alex Murphy -- / --

Notes: Dawkins' big night moves him from the bottom of the roster's ratings into the top six. Meanwhile Josh Hairston falls from the top of the heap thanks to 0 points in five minutes (the min required). Seth Curry and Ryan Kelly are the team's two most efficient players while AUstin Rivers is the least efficient offensive starter.

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