Felnin Celesten extends streak, Kade Anderson suffers first hiccup | Mariners extra

Welcome to The Seattle Times' Sunday inside baseball page, where we review the week that was on the diamond, highlight key trends with the Mariners and present our weekly MLB Power Rankings.

Stat of the Week

+14

The Mariners entered the weekend two games back of the Athletics in the AL West but they were one of just four teams in the American League with a positive run differential, at plus-14, along with the Yankees (+72), Rays (+27) and Guardians (+3). Between the Mariners, A's (-2), Ranger (-2), Angels (-38), and Astros (-46), the AL West has the worst run differential (-74) of any division in MLB.

Prospect Watch

Switch-hitting shortstop Felnin Celesten extended his hitting streak to 21 games with fourth-inning double during the second game of a doubleheader Saturday evening for High-A Everett. He added a fifth-inning single to raise his average to .344 with a .959 OPS in his first 122 at-bats of the season.

https://twitter.com/MiLBMariners/status/2055806634950283309

Kade Anderson is human after all. The Mariners' No. 1 pitching prospect had the first hiccup of his pro career Friday night, allowing five earned runs in four innings (and surrendering his first homer) for Double-A Arkansas. The 21-year-old lefty had allowed only one run in his first six starts. His ERA rose from 0.60 to 1.85 in 34 innings.

Who's Hot

Over his previous 35 at-bats entering Saturday, Randy Arozarena hit .457 (16 for 35) with one homer, two doubles, four RBI, two walks, three hit-by-pitches, four steals and eight runs, with a .525 on-base percentage and a .600 slugging percentage (1.125 OPS) in nine games. Overall, Arozarena's .301 batting average ranked seventh in the AL entering Saturday.

Who's Not

The Mariners aren't the only 2025 AL playoff team off to a disappointing start. The Blue Jays and Tigers, both hit with some key injuries, are trying to dig themselves out of an early season hole. Toronto ranks dead last in the majors in runs scored (309), and the Tigers lost eight of 10 without two-time reigning Cy Young winner and former Seattle U star Tarik Skubal.

Ex-Mariner of the Week

A 2025 All-Star, Robbie Ray is off to another strong start for San Francisco, posting a 3.04 ERA in his first nine starts. The 34-year-old left-hander is in the final year of a $115 million contract he originally signed with the Mariners before the 2022 season.

Mariners Top 5: WHIP it good

As part of the M's 50th season, we'll look back each week at the team's all-time leaders in various statistical categories. This week, we list Mariners starting pitchers with the lowest WHIP (walks plus hits per innings pitched) in a career (minimum 75 starts). Source: FanGraphs.

1. Bryan Woo, 0.98

2. Logan Gilbert, 1.06

3. George Kirby, 1.12

4. Hisashi Iwakuma, 1.13

5. Bryce Miller, 1.13

Note: Luis Castillo ranks No. 6 on the list with a 1.17 WHIP.

Power Rankings

MLB's definitive weekly rankings, from The Times' Adam Jude

1. Braves (Last week: 2)

2. Cubs (1)

3. Dodgers (4)

4. Yankees (3)

5. Rays (5)

6. Brewers (6)

7. Padres (7)

8. Guardians (8)

9. Phillies (20)

10. Pirates (11)

11. Cardinals (15)

12. Mariners (10)

13. A's (14)

14. Reds (9)

15. White Sox (22)

16. Rangers (16)

17. Tigers (12)

18. Blue Jays (13)

19. Diamondbacks (19)

20. Nationals (21)

21. Orioles (18)

22. Marlins (23)

23. Royals (17)

24. Twins (26)

25. Red Sox (24)

26. Astros (28)

27. Mets (27)

28. Giants (30)

29. Rockies (25)

30. Angels (29)

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This story was originally published May 16, 2026 at 11:41 PM.