Friday, January 3, 2014

NBA 2013-2014: Performance Ratings, Power Ratings & Projected Playoff Seeds thru 01/02/14




OFFENSE

DEFENSE

TOTAL

Current Wins

Current SOS
TEAM
SUM
RANK

SUM
RANK

SUM
RANK

Wins
RANK

SOS
RANK
Minnesota
38
3

45
8

83
1

16
12

0.513
9
Indiana
63
16

25
1

88
2

25
2

0.487
20
Toronto
46
6

44
6

90
3

15
13

0.514
8
LA Clippers
40
4

51
10

91
4

22
6

0.511
12
Portland
30
1

67
19

97
5

26
1

0.511
12
San Antonio
66
17

32
2

98
6

25
2

0.509
14
Oklahoma City
52
9

49
9

101
7

25
2

0.520
5
Houston
41
5

66
17

107
8

21
7

0.519
6
Atlanta
66
17

44
6

110
9

18
11

0.468
29
Charlotte
67
19

43
5

110
9

14
14

0.483
23
Chicago
73
22

42
4

115
11

13
20

0.481
24
Golden State
75
23

41
3

116
12

21
7

0.521
4
Memphis
53
11

66
17

119
13

14
14

0.522
3
Miami
57
13

64
15

121
14

24
5

0.484
22
New Orleans
37
2

85
28

122
15

14
14

0.508
15
Detroit
58
15

65
16

123
16

14
14

0.491
18
Denver
51
8

75
24

126
17

14
14

0.512
10
Phoenix
57
13

70
20

127
18

19
9

0.518
7
Sacramento
48
7

79
27

127
18

10
27

0.535
1
Dallas
56
12

76
25

132
20

19
9

0.507
16
Washington
78
25

56
11

134
21

14
14

0.474
27
Cleveland
78
25

60
13

138
22

11
23

0.480
26
Orlando
84
28

57
12

141
23

10
27

0.487
20
Brooklyn
52
9

90
29

142
24

11
23

0.495
17
New York
71
20

74
22

145
25

10
27

0.488
19
Boston
77
24

71
21

148
26

13
20

0.471
28
Philadelphia
88
30

62
14

150
27

11
23

0.481
24
LA Lakers
80
27

74
22

154
28

13
20

0.512
10
Milwaukee
85
29

76
25

161
29

7
30

0.461
30
Utah
71
20

94
30

165
30

11
23

0.528
2
               
Similar to my NFL Performance Ratings these break each team down using the metrics & statistics I have tested and found to be of the highest correlation to team success.  One aspect to keep in mind is the ratings above are best when lower compared to NFL ratings that are best when higher.  We can use these ratings numerous ways, identifying teams that may be over or under valued, or also for total players identifying which matchups could produce more or less points. 
Biggest movers over last 7 days as measured by Overall Performance Ranking: GS +7, TOR +5, MEM +5, CHI +4, ATL +3, LAC +3, SA (3), MIA (3), OKC (4), CHA (4), DEN (5), DET (6), SAC (6), WAS (6)
Based on these ratings & how teams have performed in the win/loss column through yesterday’s games (12/26), here are a few teams to be both bullish and bearish on:
Bullish (looking for teams whose true performance has not led to as many victories as suggested statistically): Minnesota, Toronto, and Charlotte for 3RD consecutive week.  Atlanta & Chicago newly minted bulls, no pun intended.
Bearish (opposite of Bullish comments above): Phoenix for 3rd consecutive week; Dallas newly minted bear.
Next let’s dive into the Power Ratings which use the Performance Rankings as a base:

HOME
ROAD
TEAM
Power Rating
Power Rating
Minnesota
116.0
113.0
Indiana
116.8
112.3
Toronto
114.0
112.0
LA Clippers
115.8
111.8
Portland
115.0
111.0
San Antonio
114.3
110.8
Oklahoma City
114.4
110.4
Houston
113.0
109.5
Atlanta
112.5
109.0
Charlotte
111.0
109.0
Chicago
110.8
108.3
Golden State
111.7
108.2
Memphis
109.7
107.7
Miami
111.4
107.4
New Orleans
110.3
107.3
Detroit
109.1
107.1
Denver
108.7
106.7
Phoenix
109.6
106.6
Sacramento
108.6
106.6
Dallas
109.3
105.8
Washington
108.0
105.5
Cleveland
107.5
105.0
Orlando
106.5
104.5
Brooklyn
106.4
104.4
New York
105.9
103.9
Boston
105.5
103.5
Philadelphia
105.2
103.2
LA Lakers
104.6
102.6
Milwaukee
103.6
101.6
Utah
103.0
101.0

These are actually Power Ratings that can be used when handicapping nightly matchups.  Let’s examine each of tonight’s games using the ratings above & see if we can identify some teams to target – last week was first time we did this exercise all season and cashed going 2-0 with nice home barking dog winners on Charlotte & Sacramento:
Toronto @ Washington (-3): my power ratings suggest this # should be TOR -4 so from a value perspective we see some on the Raptors.
Golden State (-3) @ Atlanta: my power ratings suggest this # should be ATL -4 so we see value on the Hawks.  Considering the Warriors are also coming off a big win over the Heat last night the Hawks certainly have an ATS & emotional level advantage in this game.
New Orleans (-3.5) @ Boston: my power ratings suggest this # should be NO -2, right on target.
New York @ Houston (-11.5): my power ratings suggest this # should be HOU -8 which would equal small value on the Rockets since the variance is greater than 1 possession.
LA Clippers (-2.5) @ Dallas: my power ratings suggest this # should be LAC -2.5, right on target.
Memphis @ Denver (-4): my power ratings suggest this # should be DEN -1, close to the target to not equal a value play.  However, when considering there is a 3pt variance in the lines, and the fact Memphis is quickly improving while Denver is quickly slipping per the Performance Ratings above there is value on the Grizzlies this evening.
Utah @ LA Lakers (-3.5): my power ratings suggest this # should be LAL -3.5, right on target.
Lastly let’s take a look at wins by team in three critical buckets: SU to date, ATS to date & SU projected at season’s end:

Current Wins

ATS Wins

Projected Wins
TEAM
Wins
RANK

Wins
RANK

Wins
RANK
Minnesota
16
12

18
6

48.96
9
Indiana
25
2

22
1

58.48
2
Toronto
15
13

16
14

47.77
10
LA Clippers
22
6

20
3

55.48
4
Portland
26
1

20
3

49.91
7
San Antonio
25
2

17
9

57.80
3
Oklahoma City
25
2

17
9

54.97
5
Houston
21
7

17
9

45.72
13
Atlanta
18
11

18
6

42.38
15
Charlotte
14
14

19
5

36.22
20
Chicago
13
20

12
26

32.75
22
Golden State
21
7

16
14

51.47
6
Memphis
14
14

11
29

41.39
16
Miami
24
5

14
19

58.55
1
New Orleans
14
14

13
23

46.33
12
Detroit
14
14

14
19

44.34
14
Denver
14
14

13
23

37.06
19
Phoenix
19
9

22
1

47.70
11
Sacramento
10
27

12
26

30.21
24
Dallas
19
9

18
6

49.57
8
Washington
14
14

17
9

40.54
18
Cleveland
11
23

14
19

29.41
25
Orlando
10
27

15
16

32.06
23
Brooklyn
11
23

13
23

26.25
26
New York
10
27

11
29

40.75
17
Boston
13
20

15
16

34.29
21
Philadelphia
11
23

14
19

24.69
27
LA Lakers
13
20

17
9

23.20
28
Milwaukee
7
30

12
26

21.77
29
Utah
11
23

15
16

19.54
30

Of note from this matrix is the middle column – this entire matrix is sorted according to where the team’s stacked up in the Performance Ratings above – with that mind we can see the top ten teams in performance are all within the top 9 of ATS winners in the NBA besides Toronto – keep an eye on the Raptors making an ATS run if they maintain the same level of play, with tonight’s game that I mentioned above further supported by this data.
This formula has proved to be very accurate over the years at projecting not only the order at which teams will finish in the standings but also the actual wins teams will wind up with come the end of the regular season (estimated to have an error of +/- 6 wins).  Based on these projections as of 01/02 the playoffs would set up like this:
Western Conference
#1 San Antonio 58-24
#2 LA Clippers 55-27
#3 Oklahoma City 55-27
#4 Golden State 51-31
#5 Portland 50-32
#6 Dallas 50-32
#7 Minnesota 49-33
#8 Phoenix 48-34
Eastern Conference
#1 Miami 59-23
#2 Indiana 58-34
#3 Toronto 48-34
#4 Detroit 44-38
#5 Atlanta 42-40
#6 New York 41-41
#7 Washington 41-41
#8 Charlotte 36-46

One question I have been asked numerous times is how can a team rate highly in the power ratings, have played a stronger schedule than another team, yet be projected to win less games than that team come mid April’s end to the regular season.  The answer is the projected wins are based on a regression formula that properly “weights” each of the statistics according to their impact on wins – effective FG % is by far the most critical aspect of this formula.  On the other hand the Performance Ratings weight all the statistics I use evenly, rating each team from #1-30 in the NBA in each stat, then aggregating (which is why LOWER is better than HIGHER).  So for example Minnesota is currently the #1 team in the Performance Ratings but just 9th in projected wins because their worst category on both sides of the ball is Effective FG %.  But of note with that statistic is its hyper sensitive to small changes, meaning because its impact is so great a small improvement in those figures can greatly impact a team’s performance & projected win total, and vice-versa.

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