Efficiency Ratings: NC State

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.

In the first full game since Ryan Kelly was sidelined with a second foot injury in as many seasons, the Blue Devils dropped the first game of the year - by eight to NC State in Raleigh. Duke actually out-rebounded the Wolfpack on the afternoon, but several missed shots and some inconstancies in tradition defense were the difference for Duke.

v. NC State
(change from previous game)

Notes: Mason Plumlee recorded another double-double with 15 points and 11 rebounds. He shot 70 percent from the field, while adding four steals and two blocks. The one point of concern was at the free throw line where Plumlee hit just one of three attempts (it was actually one of four as Josh Hairston committed a lane violation).

Freshman forward Amile Jefferson played his best game of the season with a +14 rating. Jefferson was efficient on offense, hitting 5-of-7 from the floor and grabbing four rebounds in just 12 minutes. The main thing holding Jefferson down on Saturday was foul trouble (he fouled out in 12 minutes).

If Jefferson was great, his classmate, Rasheed Sulaimon was the opposite on Saturday. The freshman has been going through a rough patch this calendar year, hitting just seven of his 32 shot attempts. The struggles hit a new level in Raleigh as Sulaimon missed all 10 of his shot attempts, recorded zero rebounds, assists, steals, and so on.

At the point guard position, Duke continues to get a new level of point guard play from Quinn Cook. The sophomore followed up his big game against Clemson with 17 points and seven assists against the Wolfpack, though he got those 17 points on 16 shots and recorded four turnovers - his highest total since Nov 22.

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

Ten Most Efficient Performances

  • Quinn Cook v. Clemson (+36)
  • Mason Plumlee v. Florida Gulf Coast (+34)
  • Mason Plumlee v. Minnesota (+34)
  • Mason Plumlee v. Ohio State (+31)
  • Mason Plumlee v. Georgia State (+29)
  • Mason Plumlee v. Elon (+28)
  • Seth Curry v. Santa Clara (+26)
  • Seth Curry v. Minnesota (+26)
  • Mason Plumlee v. Cornell (+26)
  • Mason Plumlee v. NC State (+26)

Five Least Efficient Performances*
  • Rasheed Sulaimon v. NC State (-6)
  • Seth Curry v. Ohio State (-2)
  • Alex Murphy v. Florida Gulf Coast (-1)
  • Josh Hairston v. Georgia State (-1)
  • Josh Hairston v. Minnesota (0)
*- players must play at least five minutes or factor into the box score to be considered for per game E-ratings
Cumulative Season ratings for the Blue Devils. (E/game)*
  • Mason Plumlee: 383 (23.9)
  • Quinn Cook: 253 (15.8)
  • Ryan Kelly: 229 (16.4)
  • Seth Curry: 185 (12.3)
  • Rasheed Sulaimon: 156 (9.8)
  • Tyler Thornton: 109 (6.8)
  • Amile Jefferson: 66 (4.4)
  • Josh Hairston: 45 (2.8)
  • Alex Murphy: 31 (2.2)
  • Marshall Plumlee: 0 (0.0)

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

  • Mason Plumlee: 0.712
  • Ryan Kelly: 0.573
  • Amile Jefferson: 0.489
  • Quinn Cook: 0.476
  • Seth Curry: 0.408
  • Alex Murphy: 0.408
  • Rasheed Sulaimon: 0.329
  • Tyler Thornton: 0.313
  • Josh Hairston: 0.232
  • Marshall Plumlee: .000

Tracking the most and least efficient performances by player

  • Mason Plumlee: 34/14
  • Quinn Cook: 36/6
  • Tyler Thornton: 16/1
  • Rasheed Sulaimon: 16/-6
  • Ryan Kelly: 23/10
  • Seth Curry: 26/-2
  • Amile Jefferson: 14/0
  • Alex Murphy: 13/0
  • Marshall Plumlee: 2/0
  • Josh Hairston: 9/-1

Notes: Cook's game against Clemson was a season high total (+36) and he continues to move up the season totals. Meanwhile, Amile Jefferson's efficiency score continues to separate from Josh Hairston despite playing 59 fewer minutes on the season and appearing in one fewer game.

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