Efficiency Ratings: Game 19

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.

With Smith suffering through his worst shooting performance of the season (6-of-22), the Blue Devils got a big lift off the bench from Kelly who logged a career high 20 points and didn't miss a shot (6-of-6 FG, 4-of-4 FT). Duke also got a much improved shooting percentage day from Singler which helped off set a slow start and overall performance from both Curry and Dawkins.

Wake pulled to within four points early in the second half, but it wasn't enough as Duke used a 39-19 run to end the game.

v. Wake Forest
(change from previous game)

Notes: The star of the game was Ryan Kelly who posted a season high rating of +31, good enough to tie Nolan Smith for the fourth best performance of the season. Kelly didn't miss a shot all night, hitting all six attempts from the field and all four from the charity stripe. He also pulled in six rebounds to go with a handful of assists, blocks, and steals. What Kelly didn't do is turn the ball over despite playing a large portion of the game.

As for Smith, the senior did finish with a respectable stat-line of 19 points, four rebounds, and three assists. However, it was the 27 percent shooting from the floor that brought the senior's rating down as did the even assist to turnover ratio (3/3).

With his classmate and fellow All-American struggling from the field, Kyle Singler put together a strong all around game. Despite some physical defending, the Oregon native managed to log a game high 24 points to go with seven rebounds and a season high four assists.

The post game was once again solid as the Plumlee brothers combined for 8 points and 13 rebounds. It was needed as the backup backcourt tandem of Andre Dawkins and Seth Curry managed just 9 points on 2-of-8 shooting.

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

Ten Most Efficient Performances

  • Mason Plumlee v. Marquette (+36)
  • Nolan Smith v. UNC-Greensboro (+36)
  • Kyrie Irving v. Michigan State (+35)
  • Nolan Smith v. Miami (+31)
  • Nolan Smith v. UAB (+31)
  • Ryan Kelly v. Wake Forest (+31)
  • Nolan Smith v. Virginia (+30)
  • Kyle Singler v. UNC-Greensboro (+29)
  • Kyle Singler v. Oregon (+27)
  • Kyrie Irving v. Princeton (+26)
  • Kyle Singler v. Wake Forest (+25)

Five Least Efficient Performances*

  • Seth Curry v. Miami (-3)
  • Seth Curry v. Michigan State (-2)
  • Tyler Thornton v. Kansas State (-2)
  • Tyler Thornton v. Virginia (-2)
  • Andre Dawkins v. Wake Forest (-1)
*- players must play at least 3 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)*

  • Nolan Smith +382 (20.1)
  • Kyle Singler +327 (17.2)
  • Mason Plumlee +251 (13.2)
  • Andre Dawkins +202 (10.6)
  • Ryan Kelly +199 (10.5)
  • Kyrie Irving +165 (20.6)
  • Miles Plumlee +154 (8.1)
  • Seth Curry +140 (7.4)
  • Tyler Thornton +45 (3.0)
  • Josh Hairston +34 (2.4)
*- 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/15); Hairston (E/14)

Tracking the most and least efficient performances by player

  • Kyrie Irving +35/+12
  • Nolan Smith +36/+4
  • Mason Plumlee +36/+0
  • Kyle Singler +29/+7
  • Andre Dawkins +23/-1
  • Seth Curry +18/-3
  • Ryan Kelly +31/+2
  • Miles Plumlee +19/-1
  • Tyler Thornton +9/-2
  • Josh Hairston +15/+0

Notes: In a tale of two performances, Ryan Kelly posted a career and season high in efficiency points with a +31 while Andre Dawkins' slow night resulted in his least efficient performance of the season (-1). As noted above the shooting struggles of Smith resulted in his lowest output in more than six weeks with just a +10. Looking at the season standings in the ratings, Kyrie Irving's 20.6/game efficiency rating jumped back over Smith who now sits at 20.1/game. Meanwhile, Ryan Kelly is now just 2 efficiency points from overtaking Dawkins for fourth on the team.

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