Efficiency Ratings: Kansas

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.


LATEST GAME
The Blue Devils continued a streak of perfection in Hawaii - beating the Kansas Jayhawks in an classic battle to claim the 2011 Maui Invitational Championship. Duke trailed or much of the game before clawing back to even the game out in the second half. The game featured 15 lead changes and 12 ties, and wasn't decided until Thornton hit a desperation three with 20 seconds remaining to extend the Duke lead to 66-61.

v. Kansas
(change from previous game)


Per minute Efficiency
  • Austin Rivers 0.222
  • Seth Curry 0.194
  • Andre Dawkins 0.118
  • Mason Plumlee 0.595
  • Miles Plumlee 0.250
  • Ryan Kelly 0.361
  • Josh Hairston 0.000
  • Tyler Thornton 0.381
  • Quinn Cook -1.000
  • Michael Gbinije 0.000
  • Alex Murphy 0.000

Notes: After watching the Duke backcourt run wild against Michigan, the Jayhawks made a concentrated effort to pressure and harass the Blue Devil guards at every turn. It shows up in the efficiency ratings as the trio of Rivers, Curry, and Dawkins posted just a +17 rating. Combined. Rivers, who was saddled with foul trouble late in the game, scored a +6 with 10 points and four rebounds, but saw his score dip thanks to a lack of assists, steals, and blocks. Dawkins (+4) was in a similar boat, hitting just two shots to finish with six points, an assist, and a rebound. In his lowest efficiency game of the year, Seth Curry posted a +7 score thanks to a rough shooting night from the field (2-of-8) and a 1-to-1 assist to turnover ratio (3-3).

With the guards being somewhat neutralized, Duke turned to the post game where junior Mason Plumlee continued his strong start to the year with another double-double. Plumlee's 17 points and 12 rebounds against Thomas Robinson were huge, but just as good was his stroke from the free throw line (7-of-9), something that didn't' seem possible given his early struggles from the charity stripe. Plumlee was the only Blue Devil to post more than a +13 score and he did it with a balanced line that included an assist, a steal, and a block. The Duke junior was also credited with four turnovers, which held his score under +25.

Game saving heaver Tyler Thornton put together his second straight +8 rating with a strong line of seven points, three rebounds, and one assist in 21 minutes played.


MEMORABLE SEASON PERFORMANCES

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)
  • Mason Plumlee +23 (v. Davidson)
  • Mason Plumlee +22 (v. Kansas)
  • Ryan Kelly +21 (v. Michigan)
  • Seth Curry +21 (v. Michigan)
  • Ryan Kelly +19 (v. Tennessee)
  • Ryan Kelly +19 (v. Michigan St.)
  • Austin Rivers +18 (v. Presbyterian)

Five Least Efficient Performances*

  • Tyler Thornton -2 (v. Tennessee)
  • Austin Rivers -2 (v. Michigan St.)
  • Josh Hairston -1 (v. Michigan St.)
  • Quinn Cook -1 (v. Belmont)
  • Andre Dawkins +0 (v. Belmont)
*- 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)
  • Miles Plumlee 0.824 (v. Davidson)
  • Josh Hairston .813 (v. Presbyterian)
  • Mason Plumlee 0.793 (v. Davidson)
  • Ryan Kelly 0.789 (v. Presbyterian)
  • Quinn Cook 0.750 (v. Davidson)
  • Seth Curry 0.737 (v. Michigan St.)
  • Mason Plumlee .714 (v. Belmont)
  • Ryan Kelly 0.704 (v. Tennessee)
*- 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)
  • Quinn Cook -.125 (v. Belmont)
  • Andre Dawkins .000 (v. Belmont)
  • Tyler Thornton .000 (v. Davidson)
*- players must play at least 5 minutes or factor into the box score to be considered for per game E-ratings
SEASON EFFICIENCY RATING

Cumulative Season ratings for the Blue Devils. (E/game)*
  • Mason Plumlee +119 (17.0)
  • Seth Curry +116 (16.6)
  • Ryan Kelly +115 (16.4)
  • Austin Rivers +68 (9.7)
  • Andre Dawkins +52 (7.4)
  • Miles Plumlee +49 (7.0)
  • Tyler Thornton +33 (4.7)
  • Quinn Cook +23 (4.8)*
  • Josh Hairston +15 (5.0)*
  • Michael Gbinije +1 (0.3)*
  • Alex Murphy --
*- players must play at least 3 minutes or factor into the box score to be considered for per game E-ratings. (Gbinije 3, Hairston 3, Cook 5)

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

  • Ryan Kelly 0.575
  • Mason Plumlee 0.553
  • Seth Curry 0.504
  • Josh Hairston 0.469
  • Miles Plumlee 0.450
  • Quinn Cook 0.434
  • Austin Rivers 0.319
  • Tyler Thornton 0.262
  • Andre Dawkins 0.257
  • Michael Gbinije 0.059
  • Alex Murphy ----

SEASON HIGH/LOW PERFORMANCES

Tracking the most and least efficient performances by player
  • Austin Rivers +18 / -2
  • Seth Curry +28 / +7
  • Andre Dawkins +26 / 0
  • Mason Plumlee +25 / +7
  • Miles Plumlee +16 / +1
  • Ryan Kelly +21 / +13
  • Josh Hairston +13 / -1
  • Tyler Thornton +14 / -2
  • Quinn Cook +11 / -1
  • Michael Gbinije +2 / 0
  • Alex Murphy -- / --


Notes: Mason Plumlee takes over the top spot in the season ratings and moves into second place in season per minute efficiency ratings with a big performance against Kansas. The top three players (Plumlee, Curry, and Kelly) have a healthy lead over fourth place Austin Rivers due to a few factors including higher percentages from the field and free throw line (Curry/Kelly), more rebounds, assists, steals, and blocks. Rivers has played the third most minutes on the team this season, however, which accounts for his lower per minute rating.

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