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.
After suffering one of the worst losses in the program's history, the Blue Devils returned home and promptly responded with a vintage Duke performance against Maryland. Sulaimon got hot early on, hitting his first six perimeter shots, while Jefferson helped out in the paint - blocking shots, and rebounding. After halftime it was the elder Plumlee who took the game to potential top five draft pick Alex Len, scoring 13 points after intermission including a potential dunk of the year with seven minutes remaining in the game.
(change from previous game)
- Mason Plumlee +23 (+14)
- Seth Curry +11 (+19)
- Ryan Kelly -- (--)
- Quinn Cook +17 (+12)
- Tyler Thornton +7 (+2)
- Rasheed Sulaimon +23 (+5)
- Amile Jefferson +15 (--)
- Alex Murphy +0 (-12)
- Josh Hairston +4 (--)
- Marshall Plumlee -1 (-1)
Notes: Mason Plumlee stays in the low 20s, but his score would have been quite a bit higher had he not shot just 1-of-5 from the free throw line. Plumlee also recorded a season low, seven rebounds as the Terps constantly had two space eaters boxing out the lane.
Freshman forward Amile Jefferson has seemingly cemented his position as the fifth starter in place of Kelly with another high energy performance. After the game Coach K noted that Jefferson's length and motor do wonders for him despite "being out-weighed by 60 pounds" in most match ups. The freshman finished just one rebound short of a double-double. Like Plumlee, a better performance at the FT line (just 5-of-9) would have bumped his efficiency up.
After struggling for most of the early part of January, Rasheed Sulaimon appears to have broken out of his shooting slump in a big way. The Texas product hit his first six attempts from the outside and then took the Terp defenders off the dribble with ease.
After having a terrible assist to turnover ratio in the preseason, Quinn Cook has been great distributing the ball throughout a majority of 2012-2013. Against the Terps, Quinn recored 9 assists against just two turnovers. His perimeter shooting has fallen off of late, but he's still capable of penetrating and either kicking out or finishing in traffic.
MEMORABLE SEASON PERFORMANCES
Throughout the season TDD will track the various highs and lows using the formula.
Ten Most Efficient Performances
- Quinn Cook v. Clemson (+36)
- Mason Plumlee v. Florida Gulf Coast (+34)
- Mason Plumlee v. Minnesota (+34)
- Mason Plumlee v. Ohio State (+31)
- Mason Plumlee v. Ohio State (+30)
- Mason Plumlee v. Georgia State (+29)
- Mason Plumlee v. Elon (+28)
- Seth Curry v. Santa Clara (+26)
- Seth Curry v. Minnesota (+26)
- Mason Plumlee v. Cornell (+26)
- Mason Plumlee v. NC State (+26)
Five Least Efficient Performances*
- Seth Curry v. Miami (-8)
- Rasheed Sulaimon v. NC State (-6)
- Tyler Thornton v. Miami (-3)
- Seth Curry v. Ohio State (-2)
- Alex Murphy v. Florida Gulf Coast (-1)
- Josh Hairston v. Georgia State (-1)
SEASON EFFICIENCY RATING
Cumulative Season ratings for the Blue Devils. (E/game)*
- Mason Plumlee: 434 (22.8)
- Quinn Cook: 286 (15.1)
- Ryan Kelly: 229 (16.4)
- Rasheed Sulaimon: 212 (11.2)
- Seth Curry: 206 (11.4)
- Tyler Thornton: 117 (6.2)
- Amile Jefferson: 109 (6.1)
- Josh Hairston: 55 (2.9)
- Alex Murphy: 43 (2.5)
- Marshall Plumlee: 0 (0.0)
MOST EFFICIENT PER MINUTE
Cumulative Season ratings per minute for the Blue Devils. (E/minutes)
- Mason Plumlee: 0.667
- Ryan Kelly: 0.573
- Amile Jefferson: 0.507
- Quinn Cook: 0.448
- Seth Curry: 0.381
- Alex Murphy: 0.406
- Rasheed Sulaimon: 0.381
- Tyler Thornton: 0.290
- Josh Hairston: 0.241
- Marshall Plumlee: .000
SEASON HIGH/LOW PERFORMANCES
Tracking the most and least efficient performances by player
- Mason Plumlee: 34/9
- Quinn Cook: 36/6
- Tyler Thornton: 16/-3
- Rasheed Sulaimon: 16/-6
- Ryan Kelly: 23/10
- Seth Curry: 26/-8
- Amile Jefferson: 15/0
- Alex Murphy: 13/0
- Marshall Plumlee: 2/0
- Josh Hairston: 9/-1
Notes: Jefferson is moving up the season rankings with three straight strong performances. He's third on the team in efficiency per minute owing to his willingness and production in rebounding. He's also moving up near Thornton for the cumulative points despite playing just over half the minutes of the junior point guard.