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.

Marcus Paige turned in yet another big second-half performance for North Carolina. This time it was good enough to help the Tar Heels beat No. 5 Duke in the rivalry's weather-delayed game.

Paige scored all 13 of his points in the second half, including two big baskets in the final 2½ minutes, to help the Tar Heels beat the Blue Devils 74-66 on Thursday night for their eighth straight win.

Senior Leslie McDonald added a season-high 21 points for the Tar Heels (19-7, 9-4 Atlantic Coast Conference), who rallied from 11 points down in the second half to snap a two-game home losing streak to the Blue Devils (21-6, 10-4).

Jabari Parker and Quinn Cook both scored 17 points for Duke, which led 51-40 with about 15 minutes left before going ice cold from the field. The Blue Devils missed 13 straight shots and went scoreless for 6 minutes at one point, helping the Tar Heels climb back into the game.

Duke shot 36 percent (11 for 31) after halftime and finished 5 for 22 from 3-point range for the game.

v. North Carolina
(change from previous game)

  • Rodney Hood +8 (+2)
  • Jabari Parker +17 (-4)
  • Amile Jefferson +4 (-3)
  • Quinn Cook +16 (+10)
  • Rasheed Sulaimon +2 (-8)
  • Tyler Thornton +0 (-15)
  • Matt Jones DNP (—)
  • Josh Hairston DNP (—)
  • Semi Ojeleye DNP (—)
  • Andre Dawkins +4 (-3)
  • Marshall Plumlee +9 (+9)

Notes: Duke needed a lift off the bench against the Tar Heels and got it in the form of Marshall Plumlee playing his best game in a Duke uniform. The sophomore big man scored just three points, but grabbed six rebounds and recorded a block and a steal in just 16 minutes of action. It resulted in a +9 score, the second best score of his career, but given the scope of the game…this was easily his best moments as a Blue Devil.

Jabari Parker recorded yet another double-double with 17 points and 11 rebounds, but the freshman was neutralized down the stretch and his efficiency took a big dive to a +17 thanks to a 1-to-5 assist to turnover ratio. With Parker coughing up the ball, Duke also got a disjointed performance from Hood who started the game looking as if he was head and shoulders about anyone else on the floor, but the 6'8 sophomore's score was knocked back by a goose egg in the rebounding column along with twice as many turnovers as assists.

Some silver lining for Duke was the play of Cook, who finished with 17 points and three assist in 33 minutes off the bench. Cook shot relatively well (7-of-13) and factored in on the defensive end as well with two steals.

Fellow backcourt player, Rasheed Sulaimon struggled with his shot (2-of-10) and committed more turnovers than assists. It resulted in just a +2.

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

Ten Most Efficient Performances

  • Jabari Parker v. Boston College (+37)
  • 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)
  • Quinn Cook v. Davidson (+29)

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)
  • Jabari Parker v. Notre Dame (-1)
*- players must play at least five minutes or factor into the box score to be considered for per game E-ratings

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

  • Jabari Parker: 546 (20.2)
  • Rodney Hood: 407 (15.1)
  • Quinn Cook: 350 (13.0)
  • Amile Jefferson: 332 (12.3)
  • Rasheed Sulaimon: 229 (8.8)
  • Andre Dawkins: 203 (7.8)
  • Tyler Thornton: 182 (6.7)
  • Marshall Plumlee: 63 (2.9)
  • Josh Hairston: 58 (2.3)
  • Matt Jones: 45 (1.8)
  • Semi Ojeleye: 39 (2.4)

Games Factored In: Ojeleye (16), Dawkins (26), Plumlee (22), Sulaimon (26), Jones (25), Hairston (25)

Cumulative Season ratings per minute for the Blue Devils. (E/minutes)

  • Jabari Parker: 0.668
  • Amile Jefferson: 0.568
  • Andre Dawkins: 0.529
  • Semi Ojeleye: 0.506
  • Rodney Hood: 0.472
  • Quinn Cook: 0.409
  • Rasheed Sulaimon: 0.366
  • Marshall Plumlee: 0.364
  • Tyler Thornton: 0.337
  • Josh Hairston: 0.224
  • Matt Jones: 0.222

Tracking the most and least efficient performances by player

  • Rodney Hood +32/+3
  • Jabari Parker +37/-1
  • Amile Jefferson +28/+1
  • Quinn Cook +31/+2
  • 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 +10/-1

Notes: Plumlee's big night against the Tar Heels moved him past Tyler Thornton in the per minutes stats and past Josh Hairston in the cumulative stats. Plumlee has a season total of +63 points compared to Hairston's +58. Hairston, however, has logged 259 minutes compared to Plumlee's 173.

The Devils Den Top Stories