Efficiency Ratings: Notre Dame

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.


In a match of player-of-the-year candidates, Jerian Grant made more clutch plays for eighth-ranked Notre Dame than Jahlil Okafor did for fourth-ranked Duke.

Grant finished with 23 points and 12 assists and in the final 67 seconds hit a jumper just as the shot clock expired, fired a pass to a wide-open Steve Vasturia for a 3 from the corner just as the shot clock expired then blocked a layup attempt as the Irish rallied from 10-points down to win 77-73.

A year ago the struggling Irish stunned No. 7 Duke 79-77 by holding standout freshman Jabari Parker to a season-low seven points. The Irish couldn't do the same against Okafor, who, like Parker, is from Chicago, just 90 miles west of South Bend. Okafor was a point shy of a double-double at halftime and finished with 22 points and 17 rebounds.

But he was 2-of-7 from the free throw line, including 1-of-5 in the final 4:30.

The win keeps Notre Dame (20-2, 8-1 Atlantic Coast Conference), which finished in 13th place in its first season in the league last year, in second-place halfway through the conference season. Duke (17-3, 4-3) is off to its worst start in league play since opening the 1995-96 3-4 after losing their first four league games.


(change from previous game)
  • Jahlil Okafor +28 (+10)
  • Justise Winslow +11 (+12)
  • Tyus Jones +15 (-8)
  • Quinn Cook +13 (-1)
  • Rasheed Sulaimon +0 (-1)
  • Amile Jefferson +4 (—6)
  • Grayson Allen DNP (—)
  • Matt Jones +7 (—)
  • Marshall Plumlee -1 (-8)

Notes: Okafor, as his head coach noted in the post game press conference, played very well. But, had he hit his free throws at even an average rate, the post game narratives would have been far different. Instead, the Duke center shot 2-of-7 and left back to back chances for two attempts at the line when he missed the front end of the one and one. It resulted in his score dipping below a (ridiculous) +30, and it played a part in Duke losing the game down the stretch.

A bit of positive news was the return of Justise Winslow to offensive relevance after a five game slide. Winslow still doesn’t seem to be 100 percent, but the Houston forward did manage to knock down open looks against Notre Dame. His rebounding and defensive numbers are still not where they were when he was fully healthy.

Cook and Jones combined for a +28 with identical 5-of-11 shooting stateliness. Both made all their attempts at the charity stripe and both logged two assists. Jones’ two steals gave him the two point cushion in these ratings over his senior mentor.

Off the bench Duke got a combined 2-for-10 shooting performance from Jones, Plumlee, and Sulaimon. It resulted in a combined efficiency of just +6 for the three reserves.


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)
  • Jahlil Okafor v. Notre Dame (+28)
  • 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


Cumulative Season ratings for the Blue Devils. (E/game)*
  • Jahlil Okafor +456 (22.8)
  • Quinn Cook +289 (14.5)
  • Tyus Jones +288 (14.4)
  • Amile Jefferson +275 (13.8)
  • Justise Winslow +207 (10.4)
  • Rasheed Sulaimon +133 (6.7)
  • Marshall Plumlee +109 (5.5)
  • Matt Jones +95 (4.8)
  • Grayson Allen +41 (2.6)*

*- Games Factored In: Allen (16)


Cumulative Season ratings per minute for the Blue Devils. (E/minutes)
  • Jahlil Okafor: 0.749
  • Marshall Plumlee: 0.606
  • Amile Jefferson: 0.586
  • Tyus Jones: 0.474
  • Quinn Cook: 0.418
  • Grayson Allen: 0.418
  • Justise Winslow: 0.383
  • Rasheed Sulaimon: 0.345
  • Matt Jones: 0.279


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 / 0
  • Matt Jones 16 / -2


- Okafor won’t be caught and is closing in a full 200 point lead over Cook and Jones who are just one point apart in second place. Amile Jefferson is close to the two guards as well, with Justise Winslow firmly planted in fourth in the cumulative ratings.

- The game against Notre Dame was Marshall Plumlee’s first of the season in which he didn’t register higher than the +/- 0 points.

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