8 Impact Prospect Breakouts - Fantasy Baseball Waiver Wire Stashes

April 2, 2026

League-winning fantasy baseball prospect stashes, waiver wire rookies to know for Week 1 of 2026. These fantasy baseball breakouts, call-ups, can win leagues.

With an entire week of MLB action in the books, and the opening weekend of Triple-A behind us, it is time to post some of the top high-impact prospect managers should know for Week 1 of the season.

In this piece, we will spotlight eight prospects who are emerging as top stash candidates as of Week 1 of the fantasy baseball season.

Who are the eight high-impact fantasy baseball prospects managers should keep on their radar in Week 1? Let's dive in!

James Tibbs III, OF, Los Angeles Dodgers

Current Level: Triple-A

Los Angeles Dodgers outfield prospect James Tibbs III is off to a great start to the 2026 campaign at Triple-A Oklahoma City, going 8-for-13 (.615) with six of his eight hits going for extra bases (three doubles, one triple, two home runs). The Dodgers' 11th-ranked prospect looked good in the Cactus League as well, hitting .313 with four home runs, and could be setting himself up for a debut in the big leagues this year.

The left-handed slugger was passed around from San Francisco to Boston to Los Angeles last year as a trade chip, but perhaps is starting to emerge as a high-end bat in a loaded Dodgers farm system. The former 13th-overall draft pick hit 20 home runs in all last year across 123 games with a slightly better-than-average strikeout rate of 21.4 percent and a strong walk rate of 16.0 percent while adding 10 steals.

The 23-year-old is a player to keep an eye on in both dynasty and redraft formats.

Triple-A home run #1 for James Tibbs III! pic.twitter.com/nmijQyFGun

— Oklahoma City Comets (@OKC_comets) March 29, 2026

Kade Anderson, SP, Seattle Mariners

Current Level: Double-A

Seattle Mariners pitching prospect Kade Anderson will begin the 2026 campaign at Double-A Arkansas. Seattle's selection at third overall in last year's Draft did not pitch in regular-season games last year, but did get an invite to big league camp this spring, striking out nine batters in seven innings pitched. If all goes well, the southpaw could see time at Triple-A later this year and could be in the mix for a September debut in the majors.

The 6-foot-2 hurler has a fastball, slider, curveball, and changeup in his repertoire, and with Seattle's penchant for developing pitchers, he's expected to be a quick mover through the system. The 21-year-old, who is already MLB's No. 19 prospect overall, should be on dynasty managers' radar if not already stashed away.

Carlos Lagrange, SP, New York Yankees

Current Level: Triple-A

New York Yankees pitching prospect Carlos Lagrange made his season debut at Triple-A on Sunday, allowing one earned run on four hits and no walks while striking out three in four innings of work. The Yankees' top pitching prospect began 2025 at High-A and moved up to Double-A after just eight starts, where his ERA improved, but his walk rate jumped. All in all, the right-hander posted a 3.53 ERA, 1.20 WHIP, and a 21.1 percent K-BB% in 24 appearances (23 starts).

His 168 strikeouts were the third-most in all the minors, collecting them all in just 120 innings pitched. The 22-year-old even got a taste of big league camp this spring, striking out 17 batters in 16 1/3 IP, and could be in line for an early-season call-up if he continues to perform. The 6-foot-7 hurler has a fastball that can touch 103 mph and sits in the high 90s, and if he's going to be in the majors sooner rather than later, fantasy managers in redraft leagues may want to consider stashing the flamethrower for his strikeout upside.

Jonah Tong, SP, New York Mets

Current Level: Triple-A

New York Mets right-handed pitching prospect Jonah Tong tossed four shutout frames in his Triple-A debut on Friday. Tong logged four clean innings with just one hit and two free passes. He struck out four. This was a strong debut for Tong, who was in serious competition for a lead role on the MLB roster during spring training. The right-hander made his MLB debut last summer but struggled in his first taste, logging 18 2/3 innings with a hefty 7.71 ERA and a 1.77 WHIP.

However, as he progressed through the system, Tong flashed immense upside and quickly established himself as one of the game's top pitching prospects. In 2025, Tong posted a stellar 1.43 ERA and 0.92 WHIP over 113 2/3 innings split between Double-A and Triple-A, with 179 punchouts. The 22-year-old remains a solid stash candidate in deeper 12+ team leagues as he will likely be the first name called when the Mets need additional pitching depth.

Mets top prospect Jonah Tong with a strikeout to finish the 3rd inning against the Worcester Red Sox.

So far: 3 IP, 1 H, 2 BB, 2 K pic.twitter.com/4MWuFxdund

— TonyMetro (@TonyMetroMLB) March 27, 2026

Max Clark, OF, Detroit Tigers

Current Level: Triple-A

Detroit Tigers outfield prospect Max Clark is getting his first taste of Triple-A this year, and although he's just 2-for-10 (.200) to begin the season, the Tigers' second-ranked prospect has walked four times compared to just one strikeout, and has stolen one base in each of his first three games played for Toledo thus far. The former third-overall draft pick split time between High-A and Double-A last season, registering a .271/.403/.432 slash line with 14 home runs and 19 steals in 111 games.

The left-handed slugger has shown better-than-average strikeout and walk rates throughout his time in the minors and could be in store for a big season at Triple-A. The 21-year-old has the potential to be a multi-category producer for fantasy and should be long stashed away in dynasty leagues, however, with a chance for a late-season call-up, he should also be on the redraft radar.

Colt Emerson, SS, Seattle Mariners

Current Level: Triple-A

Seattle Mariners shortstop prospect Colt Emerson signed a massive eight-year extension on Tuesday, but the team won't allow the new deal to rush his development. According to Ryan Divish of The Seattle Times, Emerson will remain in Triple-A for the time being. The Mariners will surely want Emerson and his new $95 million deal in the majors sometime this season, but for now, they will allow him to gain more development in the minors.

After all, he's only 20 years old and has spent just nine games at Triple-A. We'd be surprised if he isn't called up by midseason, though, as he's 13-for-36 in Tacoma with three home runs and 11 RBI. He has shown that he can handle Triple-A pitching, and he also fared well against a higher caliber of arms in spring training, where he posted a .268/.340/.488 slash line, two home runs, eight RBI, and 111 wRC+.

Emerson currently ranks as the #17 prospect to stash in RotoBaller's redraft fantasy baseball leagues for 2026.

Spencer Jones, OF, New York Yankees

Current Level: Triple-A

New York Yankees top outfield prospect Spencer Jones went 1-for-3 with a home run during Sunday's contest against Triple-A Buffalo. This was his first long ball of the Triple-A regular season and also extended his hitting streak to three games. Jones was unlikely to break camp with the MLB roster given their depth in the outfield, but he continues to perform at a high level.

In spring training, Jones flashed elite power, hitting six home runs while carrying an incredible .357/.455/1.071 slash line. During the 2025 season, Jones spent time at both Double-A and Triple-A and showed similar raw power upside, hitting 35 home runs over a 116-game stint. While his strikeout rate remains a concern, Jones would carry intriguing fantasy potential as soon as he earns the call to the major leagues.

Spencer Jones with his first home run of the season for Triple-A Scranton/Wilkes-Barre in G2 of the Doubleheader!

HR Distance: 397ft
Exit Velocity: 109.1 MPH
Launch Angle: 27 degrees#YankeeSource #RepBX #SpencerJones #SWBRailRiders #MiLB pic.twitter.com/XXmTFcEuYD

— Yankee Source (@_yankeesource) March 29, 2026

JR Ritchie, SP, Atlanta Braves

Current Level: Triple-A

Atlanta Braves right-handed pitching prospect JR Ritchie should contend for an early MLB debut during the 2026 campaign. Ritchie was sharp in spring training, logging 12 innings to the tune of a 2.25 ERA, 0.58 WHIP, and a 14:5 K:BB. However, even with Spencer Schwellenbach (elbow), Spencer Strider (oblique), and Hurston Waldrep (elbow) all beginning the season on the IL, the Braves opted to send Ritchie back to Triple-A for further development.

Instead, fellow emerging arm Didier Fuentes earned a spot on the Opening Day roster. However, given Atlanta's lack of pitching depth, Ritchie may get the call to the major leagues in the near future. Last summer, the former 35th overall selection made his Triple-A debut and logged 59 2/3 innings to the tune of a 3.02 ERA and a strong 1.09 WHIP. Managers should pay close attention to this early production at Triple-A, as he could earn the call in the coming weeks.

For now, he is a viable stash option in deeper 12+ team leagues.

2026 Prospect Fantasy Baseball Redraft Stash Rankings

Who are the top fantasy baseball prospects to know? Check out our latest 2026 prospect fantasy baseball rankings which are updated regularly:

More Fantasy Baseball Prospects and Rookies