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For an explanation of how the SD Score is calculated, see below.

1 – Houston Astros (29-15); SD Score +2.42 , Ranking Last Week – 1

Opponents – at Marlins (3-0), vs Indians (0-3)

The Astros were on a roll, but got swept at home against the Indians.

2 – New York Yankees (25-16); SD Score +2.38, Ranking Last Week – 3

Opponents – at Royals (2-1), at Rays (1-2)

The Yankees were able to get a win last night to end their losing streak and keep their lead in the AL East, but they didn’t have the best week.

3 – Washington Nationals (26-17); SD Score +1.60, Ranking Last Week – 2

Opponents – at Pirates (1-2), at Braves (1-2)

Not the best week for the Nationals as they got knocked around. Max Scherzer got his first loss of the month, but Washington was able to end the losing streak last night.

4 – Colorado Rockies (28-17); SD Score +0.61, Ranking Last Week – 4

Opponents – at Twins (2-1), at Reds (2-1)

Solid week for the NL West leaders as they beat a Twins club that’s playing well, as well as the Reds, who aren’t a bad team.

5 – Los Angeles Dodgers (26-19) SD Score +2.84, Ranking Last Week – 5

Opponents – at Giants (1-2), vs Marlins (3-1)

The Dodgers aren’t going to go away as they’re only 2 games back in the NL West.

6 – Arizona Diamondbacks (26-19); SD Score +2.04, Ranking Last Week – 7

Opponents – vs Mets (3-0), at Padres (2-1)

Arizona enjoyed a good week against a favorable schedule and are 2 games out of first in the NL West.

7 – Milwaukee Brewers (25-19); SD Score +1.03, Ranking Last Week – 9

Opponents – at Padres (3-1), at Cubs (1-1)

Another good week for the Brewers as they split with the Cubs and maintain a lead in the NL Central.

8 – Baltimore Orioles (25-17); SD Score +0.59, Ranking Last Week – 8

Opponents – at Tigers (1-2), vs Blue Jays (2-1)

Make that 6 one-run losses in a row for the Orioles after starting 7-1.

9 – Texas Rangers (24-21) SD Score +1.07, Ranking Last Week – 15

Opponents – vs Phillies (3-0), at Tigers (2-1)

The Rangers have now had 2 good weeks in a row.

10 – Cleveland Indians (23-19); SD Score +0.88, Ranking Last Week – 11

Opponents – vs Rays (1-2), at Astros (3-0)

After a huge sweep over possibly the best team in the majors, the Indians are tied for the AL Central lead.

11 – St. Louis Cardinals (22-19) SD Score +0.91, Ranking Last Week – 6

Opponents – vs Red Sox (0-2), vs Giants (1-2)

After winning 8 of their last 9 games going into this week, the Cardinals lost all except yesterday’s game. Time to regroup.

12 – Minnesota Twins (22-18); SD Score -0.12, Ranking Last Week – 10

Opponents – vs Rockies (1-2), vs Royals (2-1)

The Twins are tied for the AL Central lead and are still playing good ball.

13 – Chicago Cubs (22-20) SD Score +0.65, Ranking Last Week – 17

Opponents – vs Reds (3-0), vs Brewers (1-1)

The Cubs got back on track a bit, but need to beat up the Giants this week to gain more ground on the Cardinals and Brewers.

14 – Chicago White Sox (20-22); SD Score +1.10, Ranking Last Week – 14

Opponents – at Angels (0-3), at Mariners (2-2)

After breaking their losing streak last week, they got right back on one, which got their week off to a bad start.

15 – Tampa Bay Rays (23-23); SD Score +0.87, Ranking Last Week – 16

Opponents – at Indians (2-1), vs Yankees (2-1)

The Rays had a fantastic week considering their opponents and got back to .500.

16 – Boston Red Sox (22-21); SD Score +0.40, Ranking Last Week – 13

Opponents – at Cardinals (2-0), at A’s (1-3)

The Red Sox started off well, but took a beating in Oakland.

17 – Los Angeles Angels (23-23); SD Score -0.29, Ranking Last Week – 21

Opponents – vs White Sox (3-0), at Mets (1-2)

The Angels are .500 and can’t feel too good about their series in New York this week.

18 – Detroit Tigers (21-21); SD Score -0.49, Ranking Last Week – 18

Opponents – vs Orioles (2-1), vs Rangers (1-2)

And in Detroit fashion, they went .500 again this week.

19 – Cincinnati Reds (20-23); SD Score -0.30, Ranking Last Week – 12           

Opponents – at Cubs (0-3), vs Rockies (1-2)

The Reds are sinking fast, but in fairness, the schedule hasn’t done them a lot of favors.

20 – Seattle Mariners (20-25); SD Score -1.02, Ranking Last Week – 20

Opponents – vs A’s (2-1), vs White Sox (2-2)

The Mariners need a winning streak, but this week they play the Nationals.

21 – Pittsburgh Pirates (20-24); SD Score -1.29, Ranking Last Week – 26

Opponents – vs Nationals (2-1), vs Phillies (2-1)

Still unpredictable as they took the Nationals series and played well this week.

22 – Toronto Blue Jays (19-26); SD Score -0.67, Ranking Last Week – 19

Opponents – vs Braves (0-2), at Braves (1-1), at Orioles (1-2)

The Blue Jays came back to earth this week by only winning 2 games.

23 – Atlanta Braves (18-23); SD Score -1.02, Ranking Last Week – 28

Opponents – at Blue Jays (2-0), vs Blue Jays (1-1), vs Nationals (2-1)

The Braves are playing well as of late and they are not making it easy for teams.

24 – Oakland A’s (20-24); SD Score -1.89, Ranking Last Week – 27

Opponents – at Mariners (1-2), vs Red Sox (3-1)

Overall the A’s had a good week by not getting swept against the Mariners while playing well against the Red Sox.

25 – New York Mets (18-24); SD Score -1.39, Ranking Last Week – 22

Opponents – at Diamondbacks (0-3), vs Angels (2-1)

The Mets are still in a bit of a free-fall.

26 – Kansas City Royals (18-25); SD Score -1.74, Ranking Last Week – 23

Opponents – vs Yankees (1-2), at Twins (2-1)

The Royals were at least able to be respectable this week. They need to find a way to get back to .500.

27 – Philadelphia Phillies (15-26); SD Score -0.79, Ranking Last Week – 24

Opponents – at Rangers (0-3), at Pirates (1-2)

The Phillies have lost 14 of their last 18 and it hasn’t been pretty.

28 – San Francisco Giants (19-26); SD Score -2.68, Ranking Last Week – 29

Opponents – vs Dodgers (2-1), at Cardinals (2-1)

Another good week for the Giants as they beat two very good teams.

29 – Miami Marlins (15-28); SD Score -1.95, Ranking Last Week – 25

Opponents – vs Astros (0-3), at Dodgers (1-3)

Miami couldn’t have played to many better teams than Houston and LA at this point, and they paid the price.

30 – San Diego Padres (16-30); SD Score -3.76, Ranking Last Week – 30

Opponents – vs Brewers (1-3) , vs Diamondbacks (1-2)

The Padres are in trouble. No other way to look at it.

SD Score explanation:

Run production is one of the best measures of how a team is performing and how dominant or bad they are.

The formula takes each team’s runs scored and runs allowed totals and how many standard deviations from the league average they are.

Example: 1927 Yankees

The 27 Yankees score 975 runs (1927 AL average was 762 and SD of team runs for the AL was about 115). Take the difference from the league average (975-762=213) and divide by the SD (115), the 1927 Yankees were 1.85 SD above the league average in runs scored.

They allowed 599 runs (the SD in runs allowed for the 1927 AL was about 88.5), which was 163 runs less than the league average. 163/88.5 gives us a 1.84 SD above the league average in runs allowed.

Add 1.85 and 1.84 to get a final SD Score of +3.69 for the 1927 Yankees, which is amazing.

(SD ranking explanation found in “Baseball Dynasties: The Greatest Teams of All Time” by Rob Neyer and Eddie Epstein)