With each passing week, the potential for an all-Chicago World Series seems like and less improbable. The White Sox are our high riser for the week after jumping four spots and into the top 10.

The composite rankings were compiled by theScore MLB editors Bryan Mcwilliam, Simon Sharkey-Gotlieb, George Halim, and Dan Toman.

1. Chicago Cubs

RECORD PYTHAG RECORD PREVIOUS RANK (CHANGE) 24-6 24-6 1 (-)

The Cubs are on a mission after back-to-back sweeps of the Pirates and Nationals this week by a combined score of 45-21.

2. Washington Nationals

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 19-12 20-11 2 (-)

If the Cubs are playing "scared baseball" as Tanner Roark so eloquently put it, what are the Nationals playing? Washington lost for the fifth time in six games Sunday.

3. New York Mets

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 19-11 20-10 3 (-)

The Mets and everyone's favorite slugger Bartolo Colon boast the second-best run differential (+44) in the majors.

4. Los Angeles Dodgers

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 16-15 17-14 4 (-)

The Dodgers are 6-1 when Clayton Kershaw starts, outscoring teams 37-14 in those games.

5. Boston Red Sox

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 18-13 18-13 8 (+3)

The Price isn't right: Boston's new ace has allowed more runs than innings pitched in May.

6. San Francisco Giants

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 17-16 17-16 7 (-1)

The Giants' inconsistency is threatening their spot inside our top 10, but they somehow remain tied for first in the struggling NL West.

7. Toronto Blue Jays

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 16-17 18-15 5 (-2)

The Blue Jays' bullpen has helped contribute to an MLB-worst seven losses in one-run games this season.

8. Pittsburgh Pirates

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 17-14 16-15 6 (-2)

It was a rough week for the Pirates, who ended up talking about scoring rather than actually doing so in the Cubs' three-game sweep at PNC Park.

9. Chicago White Sox

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 22-10 20-12 13 (+4)

While everybody fawns over the Cubs, the South Siders are quietly five games up in the AL Central.

10. Texas Rangers

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 18-14 18-14 11 (-1)

An impressive sweep of Detroit after a rough stay in Toronto should have the Rangers feeling good. Also, Yu Darvish should be back soon.

11. St. Louis Cardinals

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 16-16 20-12 12 (-1)

The Cardinals are .500 and nine games back after the first week of May. The NL Central is good.

12. Kansas City Royals

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 15-15 13-17 10 (-2)

The Royals don't look like a World Series team right now, though we were probably saying the same thing the previous two Mays.

13. Baltimore Orioles

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 18-12 17-13 14 (+1)

This team can mash - six homers on Sunday alone - but will the patchwork pitching hold up? So far, the answer is yes.

14. Detroit Tigers

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 14-16 14-16 9 (-5)

This was a bad week for Detroit, and it doesn't get any easier with the Nats and O's up next.

15. Seattle Mariners

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 18-13 18-13 16 (+1)

Robinson Cano is finally looking like the guy Seattle signed to a big deal, and not a moment too soon since the M's are clinging to first place.

16. Houston Astros

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 12-20 14-18 15 (-1)

Evan Gattis was sent back to Double-A to resume catching, which is a sign the Astros may already be in scramble mode.

17. Cleveland Indians

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 15-13 16-12 18 (+1)

Corey Kluber reemerged to throw a complete-game shutout against the Tigers. It'd be nice for Cleveland if he can keep doing this.

18. Colorado Rockies

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 15-16 16-15 19 (+1)

Jon Gray one-hit the Giants over seven innings Saturday. He's looking like the real deal, which has been said about young Rockies pitchers too many times to count.

19. New York Yankees

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 11-18 12-17 17 (-2)

One step forward, several more steps back and onto the DL. That's life for your 2016 Yankees.

20. Tampa Bay Rays

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 15-14 14-15 21 (+1)

The Rays appear to be back on track with an offense good enough to get some wins and a starting staff that's looked mostly unhittable.

21. Arizona Diamondbacks

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 15-18 15-18 22 (+1)

Shelby Miller finally got his first win, and Segura and Drury have looked good, but the Diamondbacks need more from Goldschmidt if they want to compete.

22. Los Angeles Angels

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 13-18 13-18 20 (-2)

Garrett Richards is done for the year, Andrew Heaney is likely done, too, and the Angels dropped series to both the Rays and Brewers. That Trout kid's got a future, though.

23. Miami Marlins

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 16-14 15-15 25 (+2)

Miami lost batting champion Dee Gordon to PEDs, but Ozuna and Yelich have stepped up big in his place for the surprisingly solid Marlins.

24. Milwaukee Brewers

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 13-18 12-19 23 (+1)

Chris Carter isn't only producing with his typical power, but he's hitting for average, too. He's been a nice complement to Ryan Braun and a Brewers club that could be a lot worse.

25. Oakland Athletics

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 14-18 13-19 24 (-1)

Getting swept by the division-rival Mariners at home was humiliating, and possibly indicative of what's to come.

26. Cincinnati Reds

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 13-19 11-21 26 (-)

Cincinnati's hot start is officially a thing of the past. The Reds are 8-18 since winning five of their first six.

27. San Diego Padres

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 13-19 13-19 28 (+1)

James Shields allowed a home run to Bartolo Colon, but not all things are bad at Petco. Kemp and Myers appear to be on track, and Brett Wallace has been a revelation of late.

28. Philadelphia Phillies

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 18-14 13-19 27 (-1)

The Phillies are above .500 and competitive in the NL East thanks to their starting pitching and the emergence of closer Jeanmar Gomez. Will it last?

29. Minnesota Twins

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 8-23 10-21 29 (-)

GM Terry Ryan tried to mix things up for the struggling Twins with a flurry of transactions, but ended up just replacing players with similar parts.

30. Atlanta Braves

RECORD PYTHAG RECORD PREVIOUS RK (CHANGE) 7-23 8-22 30 (-)

The Braves have no pop and Fredi Gonzalez is on the chopping block. Construction of the new stadium is underway, so there's that.

*Pythag record is a formula invented by Bill James in an attempt to determine how many games a team should have won based on runs scored and allowed.