Efficiency Ratings: Louisville

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

Duke's defense made it easy for Jahlil Okafor to take over on the other end as he scored 14 of his 18 points in the second half. Amile Jefferson added 19 as Duke handed Louisville its first double-digit loss in three years.

Staggered by Tuesday's 16-point loss to Miami that ended their 41-game home winning streak, the Blue Devils (15-2, 3-2 Atlantic Coast Conference) rebounded to throttle the Cardinals on their home floor and end a two-game slide. The 6-foot-11 freshman Okafor and 6-9 Jefferson played a big role in outscoring Louisville 32-24 in the paint while denying the inside defensively.

Louisville (15-3, 3-2) shot just 18 of 61 from the field (30 percent) and failed again led to beat one of the ACC's traditional powerhouses. The Cardinals lost at North Carolina last Saturday.

vs. LOUISVILLE

(change from previous game)
  • Jahlil Okafor +23 (+4)
  • Justise Winslow +4 (+9)
  • Tyus Jones +15 (+14)
  • Quinn Cook +7 (-13)
  • Rasheed Sulaimon +0 (-7)
  • Amile Jefferson +21 (—)
  • Grayson Allen DNP (—3)
  • Matt Jones +5 (+4)
  • Marshall Plumlee +0 (-1)



Notes: Clearly the Duke game ball goes to Amile Jefferson for setting the tone with honorable mention going to, no surprise, Jahlil Okafor for doing what he usually does…i.e. dominating the glass and the offensive end of the floor at a ridiculously efficient clip. Individually, they were very good. As a unit, they were even better combining to shooting 14 of 17 to finish with 37 points and 14 rebounds.

And, if you were looking for the team’s barometer this season, look no further than starting point guard Tyus Jones. For the past few games the freshman was neither effective nor efficient posting a combined +5 against NC State and Miami. Against Louisville, however, Jones scored 10 points (despite not shooting overly well) and handed out eight assists against just two turnovers. It resulted in a +15 showing, which is just four efficiency points below his cumulative ACC total through the first four games.

Off the bench came Matt Jones, but for just six minutes. Outside of Jones, Duke didn’t get much from the reserves - something that could be a concern going forward. As a whole the non-starting platoon of Marshall Plumlee, Rasheed Sulaimon, and Jones (Grayson Allen logged a DNP) totaled just a +5.

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 +395 (23.2)
  • Quinn Cook +246 (14.5)
  • Amile Jefferson +244 (14.4)
  • Tyus Jones +230 (13.5)
  • Justise Winslow +192 (11.3)
  • Rasheed Sulaimon +113 (6.6)
  • Marshall Plumlee +96 (5.6)
  • Matt Jones +82 (4.8)
  • Grayson Allen +42 (3.0)*


*- Games Factored In: Allen (14)

MOST EFFICIENT PER MINUTE

Cumulative Season ratings per minute for the Blue Devils. (E/minutes)
  • Jahlil Okafor: 0.778
  • Marshall Plumlee: 0.619
  • Amile Jefferson: 0.612
  • Tyus Jones: 0.467
  • Grayson Allen: 0.442
  • Quinn Cook: 0.428
  • Justise Winslow: 0.401
  • Rasheed Sulaimon: 0.339
  • Matt Jones: 0.288


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:

- Jefferson, Cook and Jones are all within one game’s performance from leap-frogging or separating themselves from the others.

- Duke’s entire front court roster remains the most efficient group with Okafor, Plumlee, and Jefferson leading the team in per minute averages.

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