Efficiency Ratings: Game 23

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.

A potential trap game turned into a laugher very quickly as Duke raced out to a 29 point halftime lead against NC State and then spent the second half missing most every shot taken (6-of-31 FG, 1-of-4). Still, the Blue Devils' first half was enough as Duke scored 53 points before intermission and NC State scored 52 for the game. During the decisive first half both the younger Plumlee and Smith played well while Singler knocked down his first couple of attempts before cooling off from the field.

v. NC State
(change from previous game)

Notes: Over the last two games Mason Plumlee has posted a combined +47 efficiency rating including a +27 against the Wolfpack. The number could have been a good deal higher if the free thrown line wasn't proving to be such a riddle for the athletic sophomore. Had Plumlee hit 5-of-7 from the charity stripe instead of 2-of-7, his efficiency rating would have been a +33, nearly trumping his best game of the season (against Marquette). In his second start, freshman Tyler Thornton did things that didn't show up in the stat-sheet such as on the ball defense, disrupting the State offense, and taking pressure off of Smith. However, offensively, Thornton posted the season's lowest offensive efficiency rating at -4. Off the bench the Blue Devils had another good night from Seth Curry, but got little from Andre Dawkins (1-of-6 from the field) and Ryan Kelly (1 rebound, 1 assist) in the way of offensive production.

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)
  • Nolan Smith v. St. John's (+30)
  • Nolan Smith v. Boston College (+29)
  • Kyle Singler v. UNC-Greensboro (+29)
  • Mason Plumlee v. North Carolina State (+27)

Five Least Efficient Performances*

  • Tyler Thornton v. Miami (-4)
  • Seth Curry v. Miami (-3)
  • Seth Curry v. Michigan State (-2)
  • Tyler Thornton v. Kansas State (-2)
  • Tyler Thornton v. Virginia (-2)
*- 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 +486 (21.3)
  • Kyle Singler +387 (16.8)
  • Mason Plumlee +322 (14.0)
  • Ryan Kelly +232 (10.1)
  • Andre Dawkins +221 (9.6)
  • Seth Curry +182 (7.9)
  • Miles Plumlee +172 (7.5)
  • Kyrie Irving +165 (20.6)
  • Tyler Thornton +46 (2.4)
  • Josh Hairston +34 (2.0)
*- players must play at least 2 minutes or factor into the box score in some what to be considered for per game E-ratings. Irving (E/8); Thornton (E/19); Hairston (E/17)

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 +22/-3
  • Ryan Kelly +31/-1
  • Miles Plumlee +19/-1
  • Tyler Thornton +9/-4
  • Josh Hairston +15/+0

Notes: Plumlee's continued emergence inside has given him a strangle hold on the third spot in the season efficiency ratings having posted a +79 rating over the last five games (15.8/game). Similarly, the incredibly numbers posted by Smith aren't getting a lot of play, but the Duke senior has put together an incredible senior season and is a virtual lock for ACC Player of the Year honors. It is entirely likely that he will score more than 125 points higher than the next highest Blue Devil in the season efficiency ratings by the end of the year.

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