Efficiency Ratings: North Carolina

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 Jabari Parker had a season-high 30 points and 11 rebounds to lead No. 4 Duke past No. 14 North Carolina 93-81 Saturday night.

Rodney Hood added 24 points to help the Blue Devils (24-7, 13-5) end the Tar Heels' 12-game winning streak and clinch the No. 3 seed in the Atlantic Coast Conference tournament.

Duke never trailed, shot 51 percent — 57 percent in the second half — and dominated the ACC's best team on the glass, outrebounding North Carolina 34-20.

Marcus Paige — who led UNC's second-half comeback two weeks ago — finished this one with 24 points, while Brice Johnson had 15 and James Michael McAdoo added 13 for the Tar Heels (23-8, 13-5).

They shot nearly 60 percent but couldn't overcome their disadvantage on the glass and are locked into the No. 4 seed in the league tournament.


v. North Carolina
(change from previous game)

  • Rodney Hood +20 (+5)
  • Jabari Parker +35 (+12)
  • Amile Jefferson +17 (+13)
  • Quinn Cook +13 (+10)
  • Rasheed Sulaimon +11 (+3)
  • Tyler Thornton 0 (—1)
  • Matt Jones -1 (-1)
  • Josh Hairston +4 (+4)
  • Semi Ojeleye DNP (—)
  • Andre Dawkins +4 (-2)
  • Marshall Plumlee +1 (-11)

Notes: In the season's final contest, Duke went with the lineup most expected from the beginning of the season. The five of Parker, Hood, Jefferson, Sulaimon, and Cook produced in a big way with each player recording double figure efficiency.

Parker was the star of the game, recording 30 points and 11 rebounds to finish with a +35 rating. Hood, who spent much of the season alternating with his freshman teammate in having big games, was terrific as well, scoring 24 points and finishing with a +20. The two combined to shoot 18-of-30 from the field and finished with 54 points.

Though he didn't start and seemed to be out of the game early, Duke got a spark from junior point guard Quinn Cook who subbed in for Thornton's foul trouble and provided 11 points and six assists in 27 minutes of action. When Cook was on the floor it seemed as though Duke had yet another scoring threat to add to the two headed Parker-Hood monster - something the Blue Devils will need going forward.

Duke didn't see the need to utilize Marshall Plumlee as much as the seven footer's recent stretch of solid production ended with just one rebound in five minutes of action.


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

Ten Most Efficient Performances

  • Jabari Parker v. Boston College (+37)
  • Jabari Parker v. North Carolina (+35)
  • Rodney Hood v. East Carolina (+32)
  • Rodney Hood v. Georgia Tech (+31)
  • Quinn Cook v. Michigan (+31)
  • Jabari Parker v. UCLA (+30)
  • Jabari Parker v. Alabama (+30)
  • Rodney Hood v. Davidson (+30)
  • Rodney Hood v. Florida Atlantic (+30)
  • Jabari Parker v. Vermont (+30)

Five Least Efficient Performances*
  • Andre Dawkins v. Alabama (-3)
  • Matt Jones v. Kansas (-3)
  • Josh Hairston v. Wake Forest (-3)
  • Matt Jones v. Florida State (-2)
  • Andre Dawkins v. Syracuse (-2)
*- players must play at least five minutes or factor into the box score to be considered for per game E-ratings


SEASON EFFICIENCY RATING
Cumulative Season ratings for the Blue Devils. (E/game)*

  • Jabari Parker: 646 (20.8)
  • Rodney Hood: 471 (15.2)
  • Amile Jefferson: 371 (12.0)
  • Quinn Cook: 366 (11.8)
  • Rasheed Sulaimon: 278 (9.3)
  • Tyler Thornton: 208 (6.7)
  • Andre Dawkins: 210 (7.0)
  • Marshall Plumlee: 95 (3.7)
  • Josh Hairston: 61 (2.3)
  • Matt Jones: 43 (1.5)
  • Semi Ojeleye: 39 (2.3)

Games Factored In: Ojeleye (17), Dawkins (30), Plumlee (26), Sulaimon (30), Jones (28), Hairston (26)

MOST EFFICIENT PER MINUTE
Cumulative Season ratings per minute for the Blue Devils. (E/minutes)

  • Jabari Parker: 0.687
  • Amile Jefferson: 0.550
  • Andre Dawkins: 0.486
  • Semi Ojeleye: 0.488
  • Rodney Hood: 0.469
  • Marshall Plumlee: 0.420
  • Quinn Cook: 0.388
  • Rasheed Sulaimon: 0.372
  • Tyler Thornton: 0.320
  • Josh Hairston: 0.225
  • Matt Jones: 0.200

SEASON HIGH/LOW PERFORMANCES
Tracking the most and least efficient performances by player

  • Rodney Hood +32/+3
  • Jabari Parker +37/-1
  • Amile Jefferson +28/+1
  • Quinn Cook +31/-1
  • Rasheed Sulaimon +25/-2
  • Tyler Thornton +15/+0
  • Matt Jones +12/-3
  • Josh Hairston +8/-1
  • Semi Ojeleye +16/-1
  • Andre Dawkins +23/-3
  • Marshall Plumlee +12/-1


Notes: Parker's performance against North Carolina was the second most efficient game of his career, trailing the +37 at Boston College by just two points. Given the circumstances surrounding the game and the opponents in those two contests, it's safe to say that the talented freshman saved his best for last.


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