Efficiency Ratings: St. John's

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

Mike Krzyzewski earned his 1,000th career win Sunday, making him the first NCAA Division I men's coach to reach the milestone, when No. 5 Duke surged past St. John's in the second half for a 77-68 victory at Madison Square Garden.

Tyus Jones scored 22 points and the Blue Devils (17-2) went on an 18-2 run down the stretch to put Coach K in four figures on his first try.

Jahlil Okafor had 17 points and 10 rebounds, combining with Jones and Quinn Cook (17 points) to fuel the decisive spurt after Duke trailed by 10 with 8:15 remaining.

When the final horn sounded, Blue Devils players engulfed Krzyzewski and he received a bear hug from assistant Jeff Capel. Photographers swarmed the coach on the court, and players were given T-shirts that read "1,000 Wins And Kounting."

A public address announcement offered congratulations to Krzyzewski, and Duke fans at a packed Garden chanted his name and held aloft "K" signs.

vs. ST JOHN’S

(change from previous game)
  • Jahlil Okafor +18 (+3)
  • Justise Winslow -1 (-6)
  • Tyus Jones +23 (+3)
  • Quinn Cook +14 (-2)
  • Rasheed Sulaimon +1 (-15)
  • Amile Jefferson +10 (—7)
  • Grayson Allen -1 (—1)
  • Matt Jones +7 (+8)
  • Marshall Plumlee +7 (+1)



Notes: Another double-double for Jahlil Okafor that included a high shooting percentage from the field (70%). So why the somewhat “low” score (by his standards, anyway)? The answer comes from the free throw line where Okafor shot less than 50 percent (3-of-7) and in the turnover column where he posted five giveaways. Still, as has been noted in every one of Okafor’s “off” games, a +18 is still extremely good for this formula.

Classmate Tyus Jones had a similar evening, hitting 5-of-11 from the field, but a perfect 10-of-10 from the free throw line. Throw in six assists (against four turnovers) and you’ve got a +23 score for the young guard. Jones’ game can also be measured in the per minute category where he posted a .590/minute score, the best on the team, despite playing the most minutes (39).

The rest of the starters, save the injured Winslow, all posted double figure scores, while Plumlee and Jones came off the bench to post a combined +14 while also changing the game in the last nine minutes or so.

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
  • Justise Winslow (-5) v. Miami
  • Rasheed Sulaimon (-4) v. Temple
  • Grayson Allen (-3) v. Boston College
  • Matt Jones (-2) v. Elon


SEASON EFFICIENCY RATING

Cumulative Season ratings for the Blue Devils. (E/game)*
  • Jahlil Okafor +428 (22.5)
  • Quinn Cook +276 (14.3)
  • Tyus Jones +273 (14.4)
  • Amile Jefferson +271 (14.3)
  • Justise Winslow +196 (10.3)
  • Rasheed Sulaimon +133 (7.0)
  • Marshall Plumlee +109 (5.7)
  • Matt Jones +88 (4.6)
  • Grayson Allen +41 (2.6)*


*- Games Factored In: Allen (16)

MOST EFFICIENT PER MINUTE

Cumulative Season ratings per minute for the Blue Devils. (E/minutes)
  • Jahlil Okafor: 0.747
  • Marshall Plumlee: 0.626
  • Amile Jefferson: 0.600
  • Tyus Jones: 0.480
  • Quinn Cook: 0.424
  • Grayson Allen: 0.418
  • Justise Winslow: 0.384
  • Rasheed Sulaimon: 0.356
  • Matt Jones: 0.276


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 / 1
  • Grayson Allen 22 / -3
  • Rasheed Sulaimon 20 / -6
  • Justise Winslow 21 / -5
  • Marshall Plumlee 17 / 1
  • Matt Jones 16 / -2


Notes:

- Jones’ big game coupled with his performance against Pitt combined to jump him over Jefferson in the cumulative rankings by two points. He’s also within three of retaking second place from Cook.

Meanwhile, Winslow’s banged up shoulder has really come into play with the powerful wing. He’s posted a combined +7 over Duke’s last five games.

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