
The Colorado Rockies havenât been a competitive baseball team in some time. Their last winning record (and playoff appearance) came in 2018. The Rockies have lost 100-plus games for three years running, and last year they collapsed to 43-119.
But Coors Field remains the best hitting environment in the majors, so we have to monitor this lineup carefully. And out of nowhere in 2026, the Rockies have seemingly produced a useful fantasy bat whoâs widely available.
Letâs have a talk about TJ Rumfield.
Rumfield, a first baseman, has been a pedestrian prospect his entire career. He was merely a 12th-round pick out of Virginia Tech back in 2021. Heâs never shown up on any top-100 prospect lists. The Phillies traded him to the Yankees a few months after drafting him, and Rumfield has mostly been blocked during his time in the New York system. He was steady at Triple-A last year (.285/.378/.447, 16 homers) but not prioritized as a future starter.
In late January, the Yankees traded Rumfield to Colorado in exchange for pitcher Angel Chivilli. It was just what Rumfield needed, an organization with an opening. He put together an excellent spring training (.286/.359/.554, five homers, five walks against just two strikeouts) and won the first base job.
Heâs been even better in the real games, off to a .364/.417/.636 start with a couple of homers. The Rockies have slotted him fifth against all right-handed starters; he did miss a game against a lefty. His strikeout rate is above average, his walk rate a little below the mean.
Thereâs a fair chance Rumfield can hold this job all year. And with Coors Field in the background, we need to take him seriously. Iâm surprised heâs still rostered in just 8% of Yahoo leagues, even with some proactive movement the last couple of days.
While Rumfield had two RBI in the Monday loss to Houston, Cam Smith had two hits and a homer on the other side. The Smith story has a cleaner plot for fantasy managers â the post-hype sleeper. Smith was a touted rookie last year but didnât do much with the opportunity (.236/.312/.358, nine homers in 134 games). But heâs come out smoking in his first 11 starts this year: .297/.422/.595, with three homers and three steals. Heâs walked seven times, too.
Smith is still just 23, and was a top-100 prospect on everyoneâs board a year ago. Heâs been chased up to 48% in Yahoo leagues, so this is likely your last call on him. If Yordan Alvarez stays healthy, this could be another fun year with the Houston lineup.
Walker is another name for the post-hype bucket; you could arguably put him over Smith if you want. Walker was a top-10 prospect on all clipboards back in 2023, and became a helium player for the 2023 draft season. A .276/.342./.445 debut with 16 homers over 117 games was fine, if not ultimately worthy of his draft slot. But Walker fell into a .201/.253/.366 rut the next year and hasnât been fantasy relevant since.
Maybe things will click now, in his age-24 season. Walker already has three homers and four walks in the fresh year, and a .314/.385/.629 slash. Itâs important to note that he wasnât just a respected prospect, he was considered a âcanât-missâ kid just three years back. Player development isnât always linear. Because of the upside at play here, Walker deserves to be rostered in more than 38% of Yahoo leagues.
I added some Mitchell shares to my portfolio in the last couple of days. Heâs a strong-side platoon bat for Milwaukee, a lefty swinger who wonât face many southpaws. But when heâs on the field, good things happen.
Mitchell had a homer and six RBI in the Saturday doubleheader at Kansas City, and he picked up two hits and two RBI in the win at Fenway on Monday. For the year, Mitchell has a .333 average, a homer, three steals. With OBP machines in front of him in this sneaky Milwaukee lineup, heâs already driven in 13 runs. Mitchell probably wonât start Tuesday against Garrett Crochet, but eight of the next 11 Milwaukee opponents are right-handed. Heâs ready to add in 86% of Yahoo leagues.
If you have an infield hole to fill, perhaps Max Muncy can be of assistance. Weâre not talking about the Dodgers infielder, though heâs fine, too. Weâre looking at the Max Muncy who plays for the Athletics, and covers three infield slots in Yahoo.
The Aâs have the best hitter park in the American League, Sutter Health Park. Muncy took full advantage of that yard over the weekend, with a 7-for-13 binge against the Astros (four runs, one homer, three RBI). Muncy has some back class as a prospect (first round pick in 2021) and although his rookie year was a mixed bag, he did homer nine times in 63 games. Given his versatility and environment, I understand why the Aâs Muncy has chased up to 39% rostered in Yahoo leagues.
Strikeouts are part of the game with Brady House, Washingtonâs third baseman. You have to accept that. But when House makes contact, good things happen. Heâs hitting .333 in the fresh season, and conked his second homer Monday. All of his hard-hit sliders are on the good side, the right side of his Savant page. His bat speed is also in plus territory.
House also clicks the post-hype page, the 11th overall pick in 2021. His spring training was a mix of homers (three) and strikeouts (11), though he did bat .429. The Nationals arenât going to contend this year, but theyâre been a top-5 offense through the opening week and a half. You can kick the tires on House in 8% of Yahoo leagues.
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