Efficiency Ratings: Duke v. Kentucky

As the Blue Devils progress through the season there will be many different theories on how to measure team success. TDD has adopted an 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

Latest Game:

Ulis had 18 points and six assists, and No. 2 Kentucky used its speed and athleticism to pull away from No. 5 Duke for a 74-63 victory Tuesday in the Champions Classic. Kentucky (3-0) scored 17 points off 16 Duke turnovers and enjoyed an 18-4 advantage in fast-break points. Murray scored 11 of his 16 points in the second half, and Isiah Briscoe added 12 points as the Wildcats had four players in double figures. Amile Jefferson led the Blue Devils (2-1) with 16 points and 15 rebounds, and Marshall Plumlee finished with 12 points, 10 rebounds and six blocked shots. Grayson Allen, who scored 54 points in Duke's first two games, was held to six points on 2-for-11 shooting. He got his first basket on a 3-pointer from the corner with 12:08 left in the second half.


vs.Kentucky

(change from previous game)

  • Grayson Allen -4 (-30)
  • Matt Jones +13 (-8)
  • Brandon Ingram -2 (-25)
  • Amile Jefferson +26 (+5)
  • Marshall Plumlee +23 (+11)
  • Luke Kennard +0 (-15)
  • Derryck Thornton +5 (-1)
  • Chase Jeter +0 (-12)
  • Antonio Vrankovic DNP (-7)
  • Sean Obi DNP (—)

Notes: The bright lights of college basketball’s biggest stage came on and several Blue Devils were simply not ready for it against a very athletic and confident Kentucky team. Only Marshall Plumlee and Amile Jefferson upped their games while every other Duke player saw his performance and score suffer from the warmups against Siena and Bryant. The two biggest swoons were from the two players most pick as Duke’s best scorers. In fact, Grayson Allen’s 30 point drop is the largest two game swing we’ve every seen in six years of these efficiency ratings. Similarly, Brandon Ingram’s 25 point swing is the second biggest. It’s no wonder that Duke’s offense struggled with such huge dips in the performance of the two players the Blue Devils need offense from. Off the bench the lone bright spot was Derryck Thornton who posted only a +5, but shot reasonably well and showed flashes of being able to take over the PG position down the road. Sticking with the positive, Marshall Plumlee played his best game as a Blue Devil as did Amile Jefferson.


MEMORABLE SEASON PERFORMANCES

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

Ten Most Efficient Performances

  • Grayson Allen v. Siena (+28)
  • Amile Jefferson v. Siena (+26)
  • Grayson Allen v. Bryant (+26)
  • Amile Jefferson v. Kentucky (+26)
  • Marshall Plumlee v. Kentucky (+23)
  • Brandon Ingram v. Bryant (+23)
  • Amile Jefferson v. Bryant (+21)
  • Matt Jones v. Bryant (+21)

Five Least Efficient Performances*

  • Grayson Allen (-4) v. Kentucky
  • Brandon Ingram (-2) v. Kentucky
  • Sean Obi (-0) v. Siena

SEASON EFFICIENCY RATING

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

  • Amile Jefferson +73 (24.3)
  • Grayson Allen +50 (16.7)
  • Marshall Plumlee +50 (16.7)
  • Matt Jones +44 (14.7)
  • Brandon Ingram +32 (10.7)
  • Luke Kennard +22 (7.3)
  • Chase Jeter +15 (5.0)
  • Derryck Thornton +13 (4.3)
  • Antonio Vrankovic +9 (4.5)
  • Sean Obi 0 (0.0)

*- Games Factored In: Obi (1); Vrankovic (2)

MOST EFFICIENT PER MINUTE

Cumulative Season ratings per minute for the Blue Devils. (E/minutes)

  • Antonio Vrankovic 1.800
  • Amile Jefferson .802
  • Marshall Plumlee .595
  • Grayson Allen .549
  • Matt Jones .530
  • Brandon Ingram .451
  • Chase Jeter .484
  • Luke Kennard .355
  • Derryck Thornton .167
  • Sean Obi .000

SEASON HIGH/LOW PERFORMANCES

Tracking the most and least efficient performances by player 

  • Grayson Allen 28/-4
  • Amile Jefferson 26/21
  • Brandon Ingram 23/-2
  • Matt Jones 21/10
  • Marshall Plumlee 23/12
  • Luke Kennard 15/0
  • Chase Jeter 12/0
  • Antonio Vrankovic 8/1
  • Derryck Thornton 6/2
  • Sean Obi 0/0

Notes:

- Allen fell from the top of the cumulative scoring column with a negative performance replaced by Jefferson (who is leading the country in double-doubles) and tied with Plumlee. 


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