Red-hot Starlin Castro got big ovations when the Yankees played in Wrigley Field earlier this month (Getty Images).

Through Thursday's games. Most recent rankings in parenthesis.

1. Houston Astros. Best start in team history includes MLB-best plus-61 run differential through 41 games. (1)

2. Washington Nationals. At .376-13-38, Zimmerman in early Triple Crown territory. (3)

3. New York Yankees. With .348 average and AL-high 55 hits, Castro making folks in Bronx say, "Robinson Who?" (4)

4. Colorado Rockies. Won two of three in unlikely first-place showdown at Minnesota. (5)

5. Baltimore Orioles. Machado dealing with nagging finger injury. (2)

6. Arizona Diamondbacks. Pair of walkoff wins highlighted three-game sweep of free-falling Mets. (8)

7. Milwaukee Brewers. No one figured first in NL Central at quarter pole. (14)

8. St. Louis Cardinals. Fourteen members of '67 Series team return to Busch for 50th anniversary celebration. (7)

9. Los Angeles Dodgers. Another ho-hum season for Kershaw: 7-2, 2.15, 62 Ks in 62.2 innings. (6)

10. Boston Red Sox. Turned Coca-Cola Field into Fenway's rehab central. (11)

11. Texas Rangers. Erupted for nine-game win streak to recover from 13-20 start. (22)

12. Minnesota Twins. Starting Monday, six of next nine vs. Orioles and Astros. (12)

13. Detroit Tigers. Tough task ahead as four-game series at Houston opens Monday. (13)

14. Chicago Cubs. Mediocre through 40 games and rotation continues to struggle. (15)

15. Cleveland Indians. With 8-10 mark at Progressive Field, tied for fewest home wins in AL. (10)

16. Tampa Bay Rays. Bounceback from 9-19 in 2016: Archer 3-2 in first nine starts with 65 Ks and just 22 walks. (20)

17. Los Angeles Angels. Trout homers in four straight in advance of series in Citi Field. (21)

18. Cincinnati Reds. Gave up 25 runs in three-game sweep at Wrigley. (9)

19. Seattle Mariners. Outscored, 21-6, in losing four straight in Toronto. (16)

20. Oakland Athletics. After stints on DL, Gray beats Red Sox for first win since July 31. (17)

21. Pittsburgh Pirates. Lots of media eyeing trip to PNC Park during Cup final if Pens rally vs. Ottawa. (24)

22. Kansas City Royals. Won seven of 10 to stem rumors of summer fire sale. (27)

23. Toronto Blue Jays. Struggles with Braves took away momentum of Seattle sweep. (26)

24. Chicago White Sox. Dropped eight of 10 to approach AL Central cellar. (18)

25. Atlanta Braves. Injury to Freeman (.341-14-25) a devastating loss to offense. (29)

26. New York Mets. Bullpen melted down on disastrous road trip. (19)

27. San Francisco Giants. Ten years later, No. 25 to go on AT&T Park Wall of Fame on July 8. (30)

28. Philadelphia Phillies. Prospect Watch: Lehigh Valley puts together 12-game winning streak, going 6-1 vs. Bisons. (23)

29. Miami Marlins. Volquez's eight starts: 0-6, 4.87. Ouch. (25)

30. San Diego Padres. As expected in spring, record drops to MLB-worst 15-28 (28)

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