Efficiency Ratings: Clemson

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.

A somewhat slow start allowed an excited Clemson club to run out to an early nine point advantage as the Tigers crashed the boards (holding an early 9-2 rebounding advantage) and isolated the Duke guards on the perimeter. After head coach Mike Krzyzewski utilized a pair of 5-for-5 substitutions early in the first half, Duke began to respond and chip away at the Clemson lead before taking control of the game. Some questionable calls and big shots by the Tigers down the stretch made the game interesting, but in the end Duke remained composed and won by 7.

v. Clemson
(change from previous game)

Per minute Efficiency
  • Austin Rivers -0.107
  • Seth Curry 0.194
  • Andre Dawkins 0.815
  • Mason Plumlee 0.615
  • Miles Plumlee 0.696
  • Ryan Kelly 0.308
  • Josh Hairston 0.000
  • Tyler Thornton 0.167
  • Quinn Cook 0.474
  • Michael Gbinije 0.000

Notes: Dawkins posts a huge game thanks to efficient shooting from the field (7-of-12), a big point total (24), and just one turnover. The +22 is his highest score since the Michigan State game (third game of the year) and is higher than his last 5 games combined. TDD has touched on Dawkins' habit of disappearing into the shadows (Link) this season, but on this night he decided to emerge and take control of the game. Will we see an encore this week?

The brilliant performance of Dawkins masked the worst game of Austin Rivers' career in Durham. The freshman has struggled since the start of conference play and seems unsure of himself at times on offense. Against Clemson he posted a -3 rating after scoring just four points on 2-of-7 shooting. Rivers also turned the ball over twice and missed his only free throw attempt. The -3 efficiency score is the lowest total of the season by any player.

Sticking with the backcourt theme, newly anointed starting point guard Quinn Cook began looking for his offense a bit more and found himself scoring 10 points in 19 minutes. Cook also dished out a pair of assists against two turnovers to finish the night with a +9 efficiency score. Backup Tyler Thornton recored a +2 rating, while combo guard Seth Curry managed a +6 score. Curry's total was pulled down by a cold night from the field (2-of-9) and two turnovers.

Inside Duke once again got production from the Plumlee brothers. Mason and Miles both scored +16 ratings. Mason's coming off 12 points, seven rebounds, and a surprising 4-of-4 performance at the charity stripe. Meanwhile, Miles added six points and 14 rebounds which offset his four turnovers. Ryan Kelly added a +8.


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

Ten Most Efficient Performances

  • Mason Plumlee +29 (v. Colorado St.)
  • Seth Curry +28 (v. Michigan St.)
  • Ryan Kelly +28 (v. Penn)
  • Andre Dawkins +26 (v. Michigan St.)
  • Miles Plumlee +26 (v. W. Michigan)
  • Ryan Kelly +25 (v. Georgia Tech)
  • Mason Plumlee +25 (v. Belmont)
  • Mason Plumlee +25 (v. Temple)
  • Mason Plumlee +23 (v. Davidson)
  • Mason Plumlee +23 (v. UNC-Greensboro)
  • Seth Curry +23 (v. W. Michigan)

Five Least Efficient Performances*

  • Austin Rivers -3 (v. Clemson)
  • Andre Dawkins -2 (v. Temple)
  • Tyler Thornton -2 (v. Tennessee)
  • Austin Rivers -2 (v. Michigan St.)
  • Josh Hairston -1 (v. Michigan St.)
*- 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

  • Andre Dawkins 1.250 (v. Colorado St.)
  • Quinn Cook 1.174 (v. W. Michigan)
  • Mason Plumlee 1.160 (v. Colorado St)
  • Miles Plumlee 1.158 (v. Colorado St)
  • Mason Plumlee 1.040 (v. W. Michigan)
  • Miles Plumlee 1.118 (v. Penn)
  • Ryan Kelly 1.077 (v. Penn)
  • Mason Plumlee 0.958 (v. UNC-Greensboro)
  • Seth Curry 0.958 (v. W. Michigan)
  • Miles Plumlee 0.950 (v. Washington)
*- 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.)
  • Tyler Thornton -.143 (v. Tennessee)
  • Andre Dawkins -.143 (v. Temple)
  • Quinn Cook -.125 (v. Belmont)
  • Tyler Thornton -.125 (v. Ohio State)
*- 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)*
  • Mason Plumlee +301 (17.7)
  • Ryan Kelly +236 (13.9)
  • Miles Plumlee +206 (12.1)
  • Seth Curry +201 (11.8)
  • Austin Rivers +161 (9.5)
  • Andre Dawkins +129 (7.6)
  • Quinn Cook +110 (8.5)*
  • Tyler Thornton +89 (5.2)
  • Josh Hairston +45 (5.0)*
  • Michael Gbinije +34 (4.3)*
*- players must play at least 3 minutes or factor into the box score to be considered for per game E-ratings. (Gbinije 8, Hairston 9, Cook 13)

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

  • Miles Plumlee 0.675
  • Mason Plumlee 0.614
  • Ryan Kelly 0.548
  • Quinn Cook 0.500
  • Seth Curry 0.399
  • Josh Hairston 0.378
  • Austin Rivers 0.321
  • Michael Gbinije 0.354
  • Andre Dawkins 0.309
  • Tyler Thornton 0.289


Tracking the most and least efficient performances by player
  • Austin Rivers +21 / -3
  • Seth Curry +28 / 0
  • Andre Dawkins +26 / -2
  • Mason Plumlee +29 / +7
  • Miles Plumlee +26 / +1
  • Ryan Kelly +28 / +1
  • Josh Hairston +13 / -1
  • Tyler Thornton +16 / -2
  • Quinn Cook +27 / -1
  • Michael Gbinije +11 / 0

Notes: Miles Plumlee jumps back into third place over Seth Curry in the cumulative season numbers while maintaining his per minute scoring lead over brother, Mason. Austin Rivers' struggles since the beginning of ACC play have relegated him to fifth in the cumulative table, now a full 40 points behind Seth Curry. Duke's most efficient player remains Mason Plumlee who has a commanding 65 point lead over second place Ryan Kelly.

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