Efficiency Ratings: Virginia Tech

Using an NBA Efficiency Rating Formula, TDD tracks the best statistical performances of the season

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.

Some much needed rest and a considerably weaker opponent were just what the doctor ordered for Duke on Thursday night against Virginia Tech. The Blue Devils shot a ridiculous 71 percent from the perimeter, and 54 percent for the game to take control early and never look back. It was a 20 point game at the half, leaving little drama down the stretch as Duke improved to 23-3 on the season overall and 10-3 in conference play.

v. Virginia Tech
(change from previous game)

Notes: Mason Plumlee responded from the worst statistical game of his career (relative to these ratings) with one of the better ones of the season. Plumlee only attempted six shots on the night, but made four of them and shot over 80 percent from the charity stripe too. He added 12 rebounds to five assists, three blocks, and two steals.

After playing well against Maryland, Josh Hairston got another start against the Hokies - his fourth of the season. The junior responded with 11 points, but posted just a +6 rating thanks to a lack of rebounding (0 total) in 21 minutes. Hairston did, however shoot very well from the floor (67 percent) and free throw line (100 percent). The score, however suffered from lack of rebounds, blocks, steals, and assists (all zeros).

Interestingly enough, Rasheed Sulaimon scored his highest game of the season with a +21 score. The freshman hit 7-of-11 from the field, had five rebounds, and two each in the steals and assists column to go with 17 points and one turnover.

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

Ten Most Efficient Performances

  • Mason Plumlee v. NC State (+36)
  • Quinn Cook v. Clemson (+36)
  • Mason Plumlee v. Wake Forest (+35)
  • Mason Plumlee v. Florida Gulf Coast (+34)
  • Mason Plumlee v. Minnesota (+34)
  • Mason Plumlee v. Ohio State (+31)
  • Mason Plumlee v. Santa Clara (+30)
  • Mason Plumlee v. Georgia State (+29)
  • Mason Plumlee v. Virginia Tech (+28)
  • Mason Plumlee v. Elon (+28)
  • Quinn Cook v. NC State (+26)

Five Least Efficient Performances*
  • Seth Curry v. Miami (-8)
  • Rasheed Sulaimon v. NC State (-6)
  • Tyler Thornton v. Miami (-3)
  • Seth Curry v. Ohio State (-2)
  • Alex Murphy v. Florida Gulf Coast (-1)
  • Josh Hairston v. Georgia State (-1)
*- 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: 593 (22.8)
  • Quinn Cook: 387 (14.9)
  • Seth Curry: 333 (13.3)
  • Rasheed Sulaimon: 292 (11.2)
  • Ryan Kelly: 229 (16.4)
  • Tyler Thornton: 174 (6.7)
  • Amile Jefferson: 157 (6.3)
  • Josh Hairston: 89 (3.6)
  • Alex Murphy: 51 (2.1)
  • Marshall Plumlee: 0 (0.0)

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

  • Mason Plumlee: 0.663
  • Ryan Kelly: 0.573
  • Amile Jefferson: 0.456
  • Quinn Cook: 0.444
  • Seth Curry: 0.429
  • Rasheed Sulaimon: 0.378
  • Tyler Thornton: 0.307
  • Alex Murphy: 0.309
  • Josh Hairston: 0.271
  • Marshall Plumlee: 0.000

Tracking the most and least efficient performances by player

  • Mason Plumlee: 36/0
  • Quinn Cook: 36/3
  • Tyler Thornton: 16/-3
  • Rasheed Sulaimon: 21/-6
  • Ryan Kelly: 23/10
  • Seth Curry: 26/-8
  • Amile Jefferson: 16/0
  • Alex Murphy: 13/-1
  • Josh Hairston: 12/-1
  • Marshall Plumlee: 2/0

Notes: Thornton is opening up some distance between himself and Jefferson after the last two games in the cumulative season totals.

Quinn Cooks numbers have leveled off after posting just 12 assists against 16 turnovers over the last four contests.

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