The trade deadline is closing in, and the dominoes have begun to fall. Whatever happens, the best place to find out what it means for your Fantasy Baseball team is right here in the Trade Deadline Tracker. Over the next week-plus, Scott White and Chris Towers will use this space to break down every move that’s of some significance for Fantasy, updating the feed as trades happen. Be sure to bookmark it so you’ll always have the just in insights and information.Luis Castillo traded to White SoxWhile Luis Castillo is the biggest player on the move, the most impacted player for Fantasy is one that’s staying put: Kade Anderson. The top-flight pitching prospect, drafted third overall last year, has been a force of nature at Double-A, as you can see from the numbers, and because the Mariners typically have their best pitching prospects skip Triple-A, the only obstacle to his promotion has been a stacked rotation that was already six deep.
Kade Anderson
SP
SEA
Seattle
• #13
•
2026 Minors
W-L
9-1
ERA
1.20
WHIP
0.66
INN
82.1
BB
12
K
119
The Mariners recently had Anderson take three weeks off from pitching, obviously wanting to reserve some bullets for stretch run. The only question, then, is whether they bring him up right away and stick with a six-man rotation or wait a couple weeks so as to preserve his rookie eligibility. The latter option makes them eligible for certain draft pick incentives, but they may need all the help they can get right now. Either way, Anderson needs to be rostered in all Fantasy leagues because his impact down the stretch could be enormous.
Luis Castillo
SP
SEA
Seattle
• #58
•
Age: 33
206 Stats
W-L
3-9
ERA
5.06
WHIP
1.40
INN
99.2
BB
32
K
86
As for Castillo, he wouldn’t seem to have much left in the tank anymore. He’s not the bat-misser nor ground-ball generator he used to be and has struggled to keep his ERA under 5.00. He’s still capable of going six-plus innings on a good day, though, so he’ll be worth streaming at times. Presumably, he’ll be taking Noah Schultz’s place in the rotation, though Erick Fedde and Anthony Kay aren’t exactly mainstays either. What about the Mariners’ return, you ask? Part of it is salary relief, but they’re also getting reliever Seranthony Dominguez, outfielder Nolan Jones and catcher Boston Smith, a 23-year-old with a .291/.448/.589 slash line between Low-A, High-A and Double-A. Smith isn’t the most highly regarded prospect, but numbers like that are sure to draw attention now that a trade has put him on everyone’s radar. –Scott White
Lane Thomas traded to Braves
Lane Thomas
CF
KC
Kansas City
• #15
•
Age: 30
2026 Stats
AVG
.230
HR
10
SB
7
OBP
.325
OPS
.717
AB
283
The 30-year-old Lane Thomas, who had a couple years of Fantasy relevance with the Nationals, had begun to draw some Fantasy interest again in July, batting .268 with five homers and three steals. Of course, that was as an everyday player. He’s likely to form the lesser half of a platoon with Mike Yastrzemski in Atlanta, effectively replacing Eli White, given that he has an .800 OPS against lefties this season and an .850 OPS against them for his career. There’s moderate pop and good speed here when he’s playing well, but he’s probably not going to play enough to matter. The other players involved in this deal — left-hander Bailey Falter going to Atlanta and minor league pitchers Lucas Braun and Carter Holton going to Kansas City — are of no real interest in Fantasy. –Scott White
Dean Kremer traded to Twins
Dean Kremer
SP
MIN
Minnesota
•
Age: 30
2026 Stats
W-L
1-4
ERA
6.50
WHIP
1.36
INN
36
BB
11
K
38
For a minute there, it looked like Dean Kremer might be of some interest in Fantasy. I’m referring mainly to that time when he allowed one earned run in six innings against the White Sox after a three-month absence for a quad strain. He was leaning into his splitter more than ever before, and it’s a pitch that yields excellent results with a .204 batting average against and 41.5 percent whiff rate. As the pitch selection normalized, though, the ERA took an ugly turn, and now he finds himself on a Twins staff that doesn’t have an obvious opening for him. At first glance, he wouldn’t appear to be any better than the pitchers occupying the fourth and fifth spots, Zebby Matthews and Connor Prielipp, but both are entering unfamiliar territory with regard to innings, Prielipp especially. This trade serves as a reminder that those two pitchers, who are pretty fringy in Fantasy to begin with, have an expiration date. You can expect Kremer to fill a swingman role until he needs to step in full-time. –Scott White
Curtis Mead traded to Red Sox for Connelly Early
Curtis Mead
3B
BOS
Boston
•
Age: 25
2026 Stats
AVG
.254
HR
17
SB
6
OBP
.352
OPS
.852
AB
284
Update: Curtis Mead fractured his wrist in his second plate appearance for the Red Sox and will likely miss the rest of the season. The outlook depicted here now belongs to the theoretical. Perhaps it will apply to 2027, though the Red Sox could make moves between now and then that would alter it.
How refreshing to see a trade that’s more about matching up needs than shedding salary for prospects. Mead and Connelly Early both have several years of control left and, with this trade, become foundational pieces for clubs that lacked what they can provide. The big winner for Fantasy is Mead, who has had a breakout season in every respect but was required to sit occasionally on account of the Nationals’ infield surplus. He should play every day for the Red Sox — and at second base, no less, likely preserving his triple eligibility for next year. He also has a batted-ball profile that’s perfectly suited for Fenway Park, lacking in high-end exit velocities but abounding in fly balls pulled from the right side. He was already having an offensive breakthrough, but you can expect his batting average to rise as some of his fly ball outs become singles and doubles off the Green Monster. This trade puts him on the fringes of the top 12 at third base, where he’s of the most use in Fantasy.
Connelly Early
SP
WAS
Washington
•
Age: 24
2026 Stats
W-L
7-5
ERA
3.44
WHIP
1.26
INN
91.2
BB
34
K
93
From a real-world perspective, this trade probably seems like a coup for the Nationals, seeing as Early was a top prospect coming into the year while Mead had already flopped with two organizations and is challenged defensively. Mead’s stock has obviously risen since then, however, while Early’s has probably slipped a little. Notably, the Nationals are acquiring Early while he’s sidelined by elbow inflammation, which doesn’t sound serious but does introduce an element of uncertainty. Even prior to the injury, Early’s control had been shaky and his stuff had played down, putting his ERA estimators well above his actual ERA. Perhaps the Red Sox thought they should get while the getting was good. –Scott White
