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
Grayson Allen also scored 22 points for the Blue Devils (6-1), who won their fourth straight game since losing to Kentucky. Duke ran off the first 16 points of the second half and shot 64 percent after the break, turning an 11-point halftime lead into a blowout margin against the Aggies (4-1).
Kennard, a 6-foot-5 guard from Franklin, Ohio, had been shooting 33 percent from the floor and 4 for 23 (17 percent) from behind the arc.
But he went 4 for 5 from the field to match his previous season high of 12 by halftime.
Amile Jefferson had 13 points and nine rebounds. ... Freshman Derryck Thornton had a rough day, scoring two points on 1-for-9 shooting and missing a breakaway dunk.
(change from previous game)
- Grayson Allen +24 (+6)
- Matt Jones +1 (-18)
- Brandon Ingram +14 (+1)
- Amile Jefferson +25 (+9)
- Marshall Plumlee +21 (+9)
- Luke Kennard +18 (+6)
- Derryck Thornton -5 (-12)
- Chase Jeter +6 (+3)
- Antonio Vrankovic +0 (—)
- Sean Obi +0 (—)
Notes: Grayson Allen continues to post big numbers both on the stat sheet and in these ratings. Against Utah State the sophomore scored 22 points to go along with five rebounds. He added two assists, a block, and a steal to end up with a +24.
Despite his all around game, Allen’s afternoon wasn’t quite strong enough to take home top billing. That went to senior Amile Jefferson who shot 6-of-7 from the field, grabbed nine boards, and scored 13 points. He added two assists, two blocks, and two steals. His only negative ticks were the two turnovers.
Meanwhile, Luke Kennard posted a career best in points, shot 7-of-9 from the field and scored 22 points. So why was his score less than a +20? Because of the four turnovers committed. Still, it was Kennard’s best outing of his young career.
The same couldn’t be said of point guard Derryck Thornton who missed eight of nine shots, and both of his free throws to finish with the least efficient performance of any Blue Devil this season.
MEMORABLE SEASON PERFORMANCES
Throughout the season TDD will track the various highs and lows using the formula.
Ten Most Efficient Performances
- Grayson Allen v. Georgetown (+38)
- Grayson Allen v. VCU (+30)
- Grayson Allen v. Siena (+28)
- Amile Jefferson v. Siena (+26)
- Grayson Allen v. Bryant (+26)
- Amile Jefferson v. Kentucky (+26)
- Amile Jefferson v. Utah State (+25)
- Grayson Allen v. Utah State (+24)
- Marshall Plumlee v. Kentucky (+23)
- Brandon Ingram v. Bryant (+23)
Five Least Efficient Performances*
- Derryck Thornton (-5) v. Utah State
- Grayson Allen (-4) v. Kentucky
- Brandon Ingram (-2) v. Kentucky
- Sean Obi (-0) v. Siena
- Matt Jones (+1) v. Utah State
SEASON EFFICIENCY RATING
Cumulative Season ratings for the Blue Devils. (E/game)*
- Grayson Allen +161 (23.0)
- Amile Jefferson +132 (18.9)
- Marshall Plumlee +104 (14.9)
- Matt Jones +80 (11.4)
- Brandon Ingram +63 (9.0)
- Luke Kennard +60 (8.6)
- Derryck Thornton +41 (5.9)
- Chase Jeter +28 (4.7)
- Antonio Vrankovic +9 (3.0)
- Sean Obi 0 (0.0)
*- Games Factored In: Obi (2); Vrankovic (3); Jeter (6)
MOST EFFICIENT PER MINUTE
Cumulative Season ratings per minute for the Blue Devils. (E/minutes)
- Antonio Vrankovic 1.000
- Grayson Allen .709
- Amile Jefferson .629
- Marshall Plumlee .571
- Chase Jeter .519
- Luke Kennard .414
- Matt Jones .385
- Brandon Ingram .366
- Derryck Thornton .223
- Sean Obi .000
SEASON HIGH/LOW PERFORMANCES
Tracking the most and least efficient performances by player
- Grayson Allen 38/-4
- Amile Jefferson 26/21
- Brandon Ingram 23/-2
- Matt Jones 21/10
- Marshall Plumlee 23/12
- Luke Kennard 18/0
- Chase Jeter 12/0
- Antonio Vrankovic 8/1
- Derryck Thornton 16/2
- Sean Obi 0/0
- Thornton’s up and down performances have kept the cumulative performance of the point guard in the same range throughout the season. He ranks seventh in the rotation in cumulative scores and ninth in per minute efficiency.