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, according to the Scout.com Duke site, 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.
-Sam Muldrow 18
-Malik Cooke 13
-Lakeem Jackson 12
-Johndre Jefferson 8
-Damontre Harris 2
-Stephen Spinella 1
-R.J. Slawson 0
-Bruce Ellington 0
-Eric Smith 0
-Ramon Galloway -1
-Brian Richardson -3
Notes: Sam Muldrow continues to raise his average on the season. He passed Malik Cooke and became No. 2 on the season list in overall ratings. ... Cooke had an excelent night shooting going 5-of-5 (3-3 from 3), but the Gamecocks' leading rebounder only had three rebounds and failed to put up any other numbers in any other positive category. ... Bruce Ellington continues to be a bright spot on the season with his big-shot ailitiy, but big players step up in big games, and this game is one the freshman would rather forget. He put up 14 positive points, but with 13 misses (0-of-5 from 3) and a turnover, Ellington hit a low in his efficiency for the season. ... Johndre Jefferson proved you don't have to score to be efficient. He scored just two points, but still had a rating of eight in just 21 minutes. ... Bluntly put, guard play wasn't efficient, and it was a huge reason (one not named Jared Sullinger) why the outcome was as lopsided as it was. Five of the bottom six ratings were from guards with a rating of one being the highest out of the bunch. ... This is the first game that a player did not produce one of the Top 5 performances of the year, but all wasn't so bad, as Muldrow was only one off the mark.
Overall Rating (Through 9 Games):
-Lakeem Jackson (117) - 13 avg.
-Sam Muldrow (113) - 12.56
-Malik Cooke (109) - 12.11
-Bruce Ellington (71) - 7.89
-Brian Richardson (69) - 7.67
-Johndre Jefferson (63) - 7
-Damontre Harris (50) - 5.56
-Ramon Galloway (48) - 5.33
-R.J. Slawson* (41) - 5.13
-Stephen Spinella (34) - 3.78
-Eric Smith* (3) - .38
Top 5 Performances of the Season:
1. Sam Muldrow (Dec. 11 vs. Wofford) 29
2. Lakeem Jackson (Nov. 12 vs. Elon) 27
3. Sam Muldrow (Dec. 5 vs. Clemson) 21
4. Lakeem Jackson (Dec. 1 vs. Delaware St.) 20
5. Lakeem Jackson (Nov. 23 vs. USC-Upstate) 19
5. Bruce Ellington (Nov. 27 vs. Western Kentucky) 19
*Has not played in all games