Efficiency Ratings: Game 9

As the Blue Devils progress through the season there will be many different theories on how to measure team success. TDD has adopted the NBA Efficiency Formula to track Duke's top players and performances after each game and throughout 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.

Minus their star point guard, the Blue Devils relied heavily on the perimeter attack to beat Bradley handily on Wednesday. Duke struggled to adjust to a new style of attack, but found the range in the second half hitting 9-of-11 three pointers to open the second period and blow the game open.

v. Bradley
(change from previous game)

Notes: The loss of Irving shifted several roles as head coach Mike Krzyzewski noted in the post game press conference. The player dealing with the most change was Nolan Smith whose game has focused on being off the ball for several years. While he did well to facilitate his teammates and getting them open looks, Smith also struggled tremendously to find his own shot. Without another player able to penetrate and kick, the 6'2 senior saw less open looks and the Bradley zone clogged the lane enough to prevent any drives to the basket. It resulted in just a +4 rating for the Duke senior - by far his lowest of the season. Despite Smith's struggles from the floor, his 10 assists certainly helped spread the wealth. Seth Curry posted his first double-figure rating in nearly a month. While Andre Dawkins posted his best game of the season as did Miles Plumlee. Senior Kyle Singler played an efficient second half to record a +22 rating.

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

Ten Most Efficient Performances

  • Mason Plumlee v. Marquette (+36)
  • Kyrie Irving v. Michigan State (+35)
  • Kyle Singler v. Oregon (+27)
  • Kyrie Irving v. Princeton (+26)
  • Nolan Smith v. Princeton (+25)
  • Andre Dawkins v. Bradley (+23)
  • Kyrie Irving v. Princeton (+23)
  • Kyrie Irving v. Colgate (+22)
  • Kyle Singler v. Bradley (+22)
  • Nolan Smith v. Miami (+20)

Five Least Efficient Performances*

  • Seth Curry v. Michigan State (-2)
  • Tyler Thornton v. Kansas State (-2)
  • Tyler Thornton v. Bradley (-1)
  • Josh Hairston v. Kansas State (+0)
  • Josh Hairston v. Miami (Ohio) (+0)
  • Seth Curry v. Oregon (+0)
*- players must play at least 2 minutes or factor into the box score in some what to be considered for per game E-ratings

Cumulative Season ratings for the Blue Devils. (E/game)*

  • Kyrie Irving +165 (20.6)
  • Nolan Smith +145 (16.1)
  • Kyle Singler +140 (15.6)
  • Mason Plumlee +138 (15.3)
  • Andre Dawkins +116 (12.9)
  • Seth Curry +66 (7.3)
  • Ryan Kelly +65 (7.2)
  • Miles Plumlee +65 (7.2)
  • Josh Hairston +14 (2.3)
  • Tyler Thornton +13 (2.2)
*- players must play at least 2 minutes or factor into the box score in some what to be considered for per game E-ratings. Irving (E/8); Thornton (E/6); Hairson (E/6)

Tracking the most and least efficient performances by player

  • Kyrie Irving +35/+12
  • Nolan Smith +25/+4
  • Mason Plumlee +36/+7
  • Kyle Singler +27/+7
  • Andre Dawkins +23/+7
  • Seth Curry +18/-2
  • Ryan Kelly +15/+2
  • Miles Plumlee +19/+1
  • Tyler Thornton +7/-2
  • Josh Hairston +5/+0

Notes: How good had Irving been in the first eight games? He still maintains a 20 point lead over Smith for top honors and has a E/game rating that is a full four points higher than the next closest mark. The game against Bradley saw some players continue to move up the ratings chart as well. Kyle Singler passed Mason Plumlee for third place while Andre Dawkins continued to forge a huge difference between him and the battle for sixth place. That battle has tightened up tremendously as Miles Plumlee has posted 38 points in the last four games to surge into a tie with Ryan Kelly for seventh, just one back of Seth Curry for the year. Kelly and the elder Plumlee split time and starts as the second big and have combined for 130 E-points in nine games.

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