First weekend NEM

Here is a complete list of all NCAA Tournament teams with their combined net efficiency margin (NEM) through the first two rounds. As a reminder, net efficiency margin measures a team's performance in a game in points per 100 possessions (the "efficiency" part) compared to how a hypothetical average team would have performed against the same opponent (the "net" part). Factoring out the tempo and opponent allows comparison of teams' performance from the same baseline. I posted reviews of the best and worst from rounds one and two earlier.

Teams are grouped by the number of games played, then ranked by their total NEM for the tournament. The numbers are totals across all games. Larger numbers are better for total and offensive NEM, and smaller numbers are better for defensive NEM. Shaded teams are still alive after the first two rounds.

Seed	Region	Team	Games	Total	Off	Def
1	W	Connecticut	2	121.5	63.3	-58.2
1	S	North Carolina	2	86.6	45.4	-41.2
3	E	Villanova	2	80.2	45.7	-34.6
2	S	Oklahoma	2	74.7	44.6	-30.0
3	S	Syracuse	2	73.8	31.4	-42.4
12	MW	Arizona	2	73.5	43.9	-29.6
4	E	Xavier	2	71.1	24.4	-46.6
3	W	Missouri	2	66.6	49.1	-17.5
2	W	Memphis	2	65.9	60.8	-5.1
2	E	Duke	2	64.5	54.8	-9.8
3	MW	Kansas	2	63.0	13.1	-50.0
10	MW	Southern California	2	58.4	27.5	-30.9
7	E	Texas	2	57.8	44.4	-13.5
2	MW	Michigan St.	2	54.5	39.1	-15.4
12	S	Western Kentucky	2	52.7	45.1	-7.6
4	W	Washington	2	52.5	22.0	-30.5
1	E	Pittsburgh	2	51.1	33.1	-18.0
1	MW	Louisville	2	50.6	26.0	-24.7
5	W	Purdue	2	46.1	17.3	-28.8
13	MW	Cleveland St.	2	42.7	27.9	-14.8
11	MW	Dayton	2	42.6	-3.1	-45.7
10	W	Maryland	2	42.3	51.7	9.3
4	S	Gonzaga	2	41.5	52.1	10.6
8	E	Oklahoma St.	2	39.6	50.5	10.9
9	MW	Siena	2	39.6	12.9	-26.6
6	S	Arizona St.	2	38.8	40.3	1.5
6	W	Marquette	2	38.7	20.7	-18.1
10	S	Michigan	2	37.2	17.2	-20.1
8	S	Louisiana St.	2	34.0	31.6	-2.3
9	W	Texas A&M	2	33.8	42.7	8.8
12	E	Wisconsin	2	24.9	-5.8	-30.7
6	E	UCLA	2	11.3	13.8	2.5
11	E	Virginia Commonwealth	1	27.1	10.5	-16.6
11	W	Utah St.	1	21.8	3.1	-18.7
16	E	East Tennessee St.	1	17.2	-8.6	-25.8
15	W	Cal St. Northridge	1	16.9	19.6	2.7
5	E	Florida St.	1	16.3	-0.3	-16.7
9	E	Tennessee	1	16.3	19.4	3.1
12	W	Northern Iowa	1	15.5	4.0	-11.5
7	S	Clemson	1	11.0	1.0	-10.0
14	MW	North Dakota St.	1	10.8	17.3	6.4
9	S	Butler	1	10.4	12.4	2.1
11	S	Temple	1	10.3	6.9	-3.5
8	MW	Ohio St.	1	9.9	-11.3	-21.2
13	S	Akron	1	7.5	20.3	12.8
13	W	Mississippi St.	1	5.3	-6.3	-11.6
14	E	American	1	4.1	5.1	1.0
14	S	Stephen F. Austin	1	3.4	-29.2	-32.5
5	S	Illinois	1	1.8	-0.1	-1.8
15	MW	Robert Morris	1	1.4	6.6	5.2
5	MW	Utah	1	0.7	-2.1	-2.8
10	E	Minnesota	1	-2.3	2.9	5.3
16	MW	Alabama St.	1	-2.4	-1.1	1.3
6	MW	West Virginia	1	-3.4	8.4	11.8
8	W	Brigham Young	1	-3.6	1.6	5.1
14	W	Cornell	1	-4.0	7.2	11.2
7	W	California	1	-4.5	11.0	15.4
15	E	Binghamton	1	-7.8	3.2	11.1
7	MW	Boston College	1	-7.9	-3.0	4.9
13	E	Portland St.	1	-9.3	8.1	17.5
4	MW	Wake Forest	1	-10.3	12.3	22.6
15	S	Morgan St.	1	-16.2	-15.5	0.6
16	S	Radford	1	-18.1	-25.2	-7.1
16	W	Chattanooga	1	-40.0	-27.7	12.3