Efficiency Ratings: Stanford

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

Freshman center Jahlil Okafor had 10 points and 12 rebounds and dominated the closing minutes as No. 4 Duke took the 2014 Coaches vs. Cancer Tournament title with a 70-59 victory over Stanford on Saturday night.

Fellow freshman Justise Winslow added 14 points and nine rebounds, tournament MVP Quinn Cook had 18 points, and Matt Jones came off the bench to add 10 points for Duke (5-0).

Okafor was amazing down the stretch, scoring eight points, grabbing six rebounds and making life miserable in the lane for anyone wearing red.

"He's a target. From last night, we forced too much," Krzyzewski said of Okafor. "He forced it. He didn't pass it out. We showed him and told him to kick it out. Tonight he was a facilitator and still got buckets."

This was the 20th time Krzyzewski coached against a team led by one of his former assistants. He is 19-1, with the only loss coming to Mike Brey at Notre Dame last season.

v. STANFORD

(change from previous game)
  • Jahlil Okafor +14 (+1)
  • Justise Winslow +16 (+3)
  • Tyus Jones +3 (-10)
  • Quinn Cook +19 (+2)
  • Rasheed Sulaimon +3 (+7)
  • Amile Jefferson +17 (+4)
  • Grayson Allen DNP (-5)
  • Matt Jones +7 (+4)
  • Semi Ojeleye DNP (+3)
  • Marshall Plumlee +1 (-10)



Notes: Quinn Cook continues to shoot a well from the field and long range for a scoring guard, and he’s also utilizing his point guard skills as well. Against Stanford Cook led the team in scoring and assists while committing just one turnover in 39 minutes. He also converted all of his free throws to finish with the high rating for the second straight game.

Much like his fellow captain, Amile Jefferson was efficient albeit quietly. The junior started strong, hitting three of his first four shots and rebounded well (7). He also shot 75 percent from the line to finish with 9 points and 7 rebounds in just 24 minutes. It resulted in a +17.

Somewhat less efficient, but more spectacular was the play on Winslow. The freshman wing did a little bit of everything that shows up in the box score, and a lot of what doesn’t. He guarded the 1-4 positions and was Duke’s strongest rebounder for a lot of the game. Were it not for a very poor night at the charity stripe (4-of-10), Winslow would have score well into the 20s for these ratings. Still, his 14 points, 9 boards, and 4 assists were strong enough to overcome the free throw and field goal percentages (both 40.00)


MEMORABLE SEASON PERFORMANCES

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

Ten Most Efficient Performances

  • Jahlil Okafor v. Presbyterian (+28)
  • Quinn Cook v. Michigan St (+24)
  • Tyus Jones v. Michigan St (+22)
  • Jahlil Okafor v. Fairfield (+22)
  • Amile Jefferson v. Fairfield (+22)
  • Grayson Allen v. Presbyterian (+22)
  • Tyus Jones v. Presbyterian (+21)
  • Jahlil Okafor v. Michigan St (+21)
  • Quinn Cook v. Stanford (+19)
  • Quinn Cook v. Temple (+17)

Five Least Efficient Performances*

  • Rasheed Sulaimon (-4) v. Temple
  • Semi Ojeleye (-2) v. Temple
  • Marshall Plumlee (+0) v. Michigan St
  • Rasheed Sulaimon (+0) v. Michigan St
  • Matt Jones (+3) v. Temple


SEASON EFFICIENCY RATING

Cumulative Season ratings for the Blue Devils. (E/game)*
  • Quinn Cook +101 (20.2)
  • Jahlil Okafor +98 (19.6)
  • Justise Winslow +76 (15.2)
  • Amile Jefferson +70 (14.0)
  • Tyus Jones +69 (13.8)
  • Marshall Plumlee +39 (7.8)
  • Grayson Allen +37 (9.3)*
  • Matt Jones +29 (5.8)
  • Rasheed Sulaimon +24 (4.8)
  • Semi Ojeleye +9 (2.3)*


*- Games Factored In: Allen (4), Ojeleye (4)

MOST EFFICIENT PER MINUTE

Cumulative Season ratings per minute for the Blue Devils. (E/minutes)
  • Grayson Allen: 0.974
  • Marshall Plumlee: 0.709
  • Jahlil Okafor: 0.695
  • Quinn Cook: 0.627
  • Amile Jefferson: 0.603
  • Justise Winslow: 0.543
  • Tyus Jones: 0.523
  • Matt Jones: 0.330
  • Rasheed Sulaimon: 0.296
  • Semi Ojeleye: 0.250


SEASON HIGH/LOW PERFORMANCES


Tracking the most and least efficient performances by player
  • Jahlil Okafor 28 / 13
  • Justise Winslow 21 / 12
  • Tyus Jones 22 / 3
  • Quinn Cook 24 / 17
  • Rasheed Sulaimon 20 / -4
  • Amile Jefferson 24 / 7
  • Grayson Allen 22 / 0
  • Matt Jones 14 / 2
  • Semi Ojeleye 5 / -2
  • Marshall Plumlee 17 / 1


Notes:

- It was Tyus Jones’ worst game of the season, and yet Duke was able to counter the virtual absence of their point guard with the stellar play of Cook and nice outings from Sulaimon and Jones. As for T. Jones, the freshman continues to make a number of heady plays, but his jump shot isn’t falling (he’s just 1-of-13) in the last two games.

- Allen and Ojeleye both registered “DNP - Coach’s Decision”


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