Efficiency Ratings: NC State

Using an NBA Efficiency Rating Formula, TDD tracks the best statistical performances of 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 above referenced 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.

LATEST GAME

After a series of double-digit wins to start the season, the Blue Devils followed a tougher-than-expected road win against an instate ACC rival by losing for the first time this season, at North Carolina State.

Duke trailed at halftime for the first time and by 19 in the second half in Sunday's 87-75 loss to the Wolfpack, a game that Hall of Fame coach Mike Krzyzewski said would be a lesson for a team led by freshmen.

Duke had won its first 13 games by at least 10 points before Wednesday's 73-65 win at Wake Forest, where the Blue Devils faced their first second-half deficit of the season. This time, they just couldn't keep up with a hot-shooting Wolfpack team that played with aggressive confidence.

The Wolfpack (12-5, 3-1 Atlantic Coast Conference) ran constant double teams at preseason All-American Jahlil Okafor to slow Duke's big man. N.C. State made 10 of 16 3-pointers and shot 58 percent after the break.

Okafor finished with 23 points and 12 rebounds, but the Blue Devils (14-1, 2-1) shot 37 percent.

vs. WAKE FOREST

(change from previous game)
  • Jahlil Okafor +33 (+20)
  • Justise Winslow +4 (-17)
  • Tyus Jones +4 (-8)
  • Quinn Cook +17 (+5)
  • Rasheed Sulaimon +7 (-3)
  • Amile Jefferson +10 (+7)
  • Grayson Allen 0 (+1)
  • Matt Jones +0 (-6)
  • Marshall Plumlee +0 (-4)



Notes: While he disappeared from the offense and stat sheet for nearly 20 minutes against NC State, Jahlil Okafor played his second most efficient game of the season. The freshman scored 23 points, grabbed 12 rebounds, and hit 8-of-11 from the field and 7-of-11 from the free throw line. He also added three blocks and three steals. It resulted in a +33, which was just four points shy of his career and season high of +37 against Elon.

Where Duke really felt the sting of an off night was the performances of Tyus Jones and Justise Winslow. Both freshman starters struggled and put up +4s between them. Both struggled from the field (combined 5-of-18), and neither factored in heavily in any other stats.

MEMORABLE SEASON PERFORMANCES

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

Ten Most Efficient Performances

  • Jahlil Okafor v. Elon (+37)
  • Jahlil Okafor v. NC State (+33)
  • Jahlil Okafor v. Furman (+32)
  • Jahlil Okafor v. Boston College (+32)
  • Amile Jefferson v. Furman (+30)
  • Jahlil Okafor v. Wofford (+30)
  • Jahlil Okafor v. Toledo (+28)
  • Jahlil Okafor v. Presbyterian (+28)
  • Tyus Jones v. Army (+27)
  • Tyus Jones v. Toledo (+27)

Five Least Efficient Performances*

  • Rasheed Sulaimon (-6) v. Connecticut
  • Rasheed Sulaimon (-4) v. Temple
  • Grayson Allen (-3) v. Boston College
  • Matt Jones (-2) v. Elon
  • Grayson Allen (-2) v. Toledo


SEASON EFFICIENCY RATING

Cumulative Season ratings for the Blue Devils. (E/game)*
  • Jahlil Okafor +352 (23.5)
  • Quinn Cook +219 (14.6)
  • Tyus Jones +214 (14.3)
  • Amile Jefferson +202 (13.5)
  • Justise Winslow +192 (12.8)
  • Rasheed Sulaimon +106 (7.1)
  • Marshall Plumlee +95 (6.3)
  • Matt Jones +76 (5.1)
  • Grayson Allen +39 (3.0)*


*- Games Factored In: Allen (13)

MOST EFFICIENT PER MINUTE

Cumulative Season ratings per minute for the Blue Devils. (E/minutes)
  • Jahlil Okafor: 0.798
  • Marshall Plumlee: 0.664
  • Amile Jefferson: 0.596
  • Tyus Jones: 0.494
  • Justise Winslow: 0.464
  • Grayson Allen: 0.448
  • Quinn Cook: 0.436
  • Rasheed Sulaimon: 0.364
  • Matt Jones: 0.280


SEASON HIGH/LOW PERFORMANCES


Tracking the most and least efficient performances by player
  • Jahlil Okafor 37 / 13
  • Amile Jefferson 30 / 3
  • Quinn Cook 24 / 6
  • Tyus Jones 27 / 2
  • Grayson Allen 22 / -3
  • Rasheed Sulaimon 20 / -6
  • Justise Winslow 21 / 4
  • Marshall Plumlee 17 / 1
  • Matt Jones 16 / -2


Notes:

- The game against NC State was the least efficient performance of Winslow’s career.

- Quinn Cook has jumped back over Tyus Jones in the season’s cumulative totals.

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