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Stephen Kolek SP | KC
Royals' Stephen Kolek: Dominates despite loss
Kolek (5-6) took the loss Thursday against the Mariners, allowing two runs (one earned) on two hits and one walk while striking out eight over 7.1 innings.
Kolek was nearly flawless outside of the fourth inning, when he gave up the only two hits he allowed all game -- the second being an RBI double to Jorge Polanco that accounted for the lone earned run against him. Despite the tough-luck loss, the right-hander has been outstanding since being acquired by Kansas City, posting a 1.67 ERA and an 18:3 K:BB across 27 innings while going at least six frames and yielding no more than two runs in each of his four starts. Even so, the 28-year-old has managed to secure just one win in that stretch. Kolek is slated for a tougher assignment in his next outing against the Dodgers, who rank near the top of MLB in most offensive categories in September.
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Luis Castillo SP | CHW
Mariners' Luis Castillo: Blanks Royals in 10th win
Castillo (10-8) earned the win Thursday against the Royals, allowing three hits and striking out three across six scoreless innings.
Castillo allowed only three baserunners through his six innings of work, leaning heavily on his breaking pitches -- mixing in 20 sliders and 16 changeups -- to induce weak contact. The right-hander was at 40 pitches through two innings but settled in nicely, needing just 84 pitches overall to log his third straight quality start. Castillo has been overall sharp in September with a 2.86 ERA across four outings and will look to keep it going in his final start of the regular season next week against the Rockies. While Colorado has reached base at the lowest rate in MLB this month, the hitter-friendly environment at Coors Field is always a factor.
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Brent Rooker DH | ATH
Athletics' Brent Rooker: Posts third straight 30-homer year
Rooker went 1-for-4 with a two-run home run in Thursday's 5-3 win over Boston.
That makes it three long balls in Rooker's past five games, and Thursday's blast gave him his third consecutive 30-homer campaign. The slugging outfielder has been an excellent four-category fantasy contributor in 2025, hitting .267 with 87 RBI and 91 runs scored to go with a career-high 40 doubles over 599 at-bats. Rooker has benefitted significantly from seeing around half of his action at hitter-friendly Sutter Health Park -- he has an .891 OPS at home versus a .779 OPS on the road.
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David Hamilton 3B | MIL
Red Sox's David Hamilton: Smacks rare homer
Hamilton went 1-for-3 with a solo home run in Thursday's 5-3 loss to the Athletics.
The homer was Hamilton's fifth of the season and his first in the month of September. The lefty-hitting infielder has struggled mightily at the plate in 2025, and he has been unable to take on a strong-side platoon role over the righty-hitting Romy Gonzalez at second base. Hamilton will likely continue to be used primarily as a pinch runner and defensive replacement, batting .201 with four doubles, 17 RBI and 21 stolen bases over 87 games.
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Sebastian Rivero C | LAA
Angels' Sebastian Rivero: Notches steal in loss
Rivero went 1-for-3 with a stolen base in Thursday's 5-2 loss to the Brewers.
This was the first career steal for Rivero. The catcher is batting .192 with two RBI, four runs scored, two doubles and no home runs over nine games in the majors with the Angels this year, his first taste of big-league action since 2022 with the Royals. He'll compete with Logan O'Hoppe for playing time over the last three series of the season.
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Hogan Harris RP | ATH
Athletics' Hogan Harris: Tallies fourth save
Harris recorded the save Thursday against the Red Sox, allowing one run on one hit and no walks in two innings. He struck out three.
The left-hander posted his fourth save of the season, and each have come following the trade of Mason Miller. Harris should remain one of the Athletics' preferred late-inning options alongside Sean Newcomb to finish up the year, but neither appears locked in as the club's closer. Through 60 innings, Harris has a 3.30 ERA, 1.42 WHIP and 61:33 K:BB.
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Christian Moore 2B | LAA
Angels' Christian Moore: Swipes bag Thursday
Moore went 2-for-3 with two doubles, one walk and one stolen base in Thursday's 5-2 loss to the Brewers.
This was Moore's first multi-hit effort in five games since he rejoined the major-league roster. The second baseman has gone 4-for-16 with three walks and seven strikeouts in that span, though all four of his knocks have gone for extra bases. Moore is now at a .202/.297/.388 slash line, six homers, 14 RBI, 17 runs scored, four doubles, one triple and one steal through his first 44 MLB games.
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Luis Rengifo LF | SD
Angels' Luis Rengifo: Blasts ninth homer
Rengifo went 1-for-4 with a two-run home run in Thursday's 5-2 loss to the Brewers.
Rengifo's playing time has picked up a bit while he has filled in for Yoan Moncada (ankle) at third base over the last few days, though Moncada was able to appear as a pinch hitter Thursday. Rengifo has gone 10-for-53 (.189) over 16 games in September while slipping into a utility role as the Angels get a look at some prospects in an injury-riddled infield. For the season, Rengifo has nine homers, 43 RBI, 53 runs scored, 10 stolen bases and a .240/.291/.340 slash line, with that .631 OPS being his worst since 2021.
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Yusei Kikuchi SP | LAA
Angels' Yusei Kikuchi: Decent in no-decision
Kikuchi allowed two runs on five hits and three walks while striking out two over 5.2 innings in a no-decision versus the Brewers on Thursday.
Kikuchi has walked at least three batters in four of his last seven starts. He's at least gotten the rest of his work under control, allowing just three runs over his last 11.2 innings, but his winless stretch reached seven games Thursday. For the season, Kikuchi has a 4.05 ERA, 1.45 WHIP and 168:73 K:BB through 173.1 innings. The southpaw is tentatively projected for his last start of the season at home against the Royals next week.
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Cade Povich SP | BAL
Orioles' Cade Povich: Struggles with control in loss
Povich (3-8) was charged with the loss Thursday against the Yankees, allowing three runs on five hits and four walks in five innings. He struck out five.
While Povich did manage to hurl at least five innings for a fourth consecutive start, the four walks were his most since his April 18 outing against the Reds. The southpaw did strike out the side in the fourth frame as well, but he remains without a quality start since Aug. 10 against the Athletics. Povich has an underwhelming 5.06 ERA, 1.46 WHIP and 114:41 K:BB over 106.2 innings this year, and he's next set to take the ball versus a Rays team with a strong .799 OPS against left-handed pitching since the beginning of September.