Efficiency Ratings: China Game 3

Using the 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 NBA 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.

For reference, last year LeBron James posted the two most efficient games of the season with a +54 (37 points on 11-of-17 FG & 9-10 FT, 12 rebounds, 11 assist, 2 steals, 1 block, and 2 turnovers) and +50 (40 points on 16-of-23 FG & 6-6 FT, 8 rebounds, 8 assist, 1 steal, 2 blocks, and 2 turnovers) rating.

The third and final game against the Chinese National team was, at times, the best for the Blue Devils. The starting lineup was able to establish a rhythm and flow for most of the game and seemed to always be firmly in control of the game. When Duke went to the bench for extended periods, however, the hosts were able to claw back from as many as 20 down in the first period to cut the lead to just four early in the second half. Once again Kelly was the leader for Duke in the scoring column, and he got quite a bit of help from the elder Plumlee who recorded a double-double. All told six Duke players scored 10 points or more on the evening. Rivers struggled for large portions of the game with decision making, but managed to hit double figures for the third straight game.

v. China
(change from previous game)

Notes: Duke's primary front court rotation (Kelly and the two eldest Plumlees) combined for a +75 rating on the night. To put it in perspective there were three games last season where the entire Duke team didn't post a +75 efficiency rating. It's a hopeful sign for a team that has continually said the post game will be a priority in 2011-2012. Of course that kind of efficiency can only be maintained if the front court can stay on the floor and avoid some of the silly fouls that have occurred over the course of the last several years. As noted above Austin Rivers continues to adjust to the speed of the next level of his career. The 6'4 guard is the team's best player going off the bounce and breaking down defenses to create for others, but at times in the first three games he's tried to do too much. Those instances have left him in trouble with few options other than an off balanced shot attempt or a wild turnover. Had he simply shot around 50 percent on this night, he'd have posted a much higher rating (50 percent would have resulted in a +14).

Note: As more games are played we'll add in additional tracking/analysis.

Cumulative Pre-Season ratings for the Blue Devils. (E/game)*
  • Austin Rivers +25 (8.3)
  • Seth Curry +21 (7.0)
  • Andre Dawkins +43 (14.3)
  • Mason Plumlee +39 (13.0)
  • Miles Plumlee +52 (+17.3)
  • Marshall Plumlee +2 (0.7)
  • Alex Murphy +5 (1.6)
  • Ryan Kelly +84 (28.0)
  • Josh Hairston +7 (2.3)
  • Tyler Thornton +11 (3.6)
  • Michael Gbinije -5 (-1.7)
*- players must play at least 3 minutes or factor into the box score to be considered for per game E-ratings. Marshall Plumlee (E/1)

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