There were a lot of prospects on the move, in rankings, before some of them will be on the move, in trades.
MLB Pipeline just refreshed all of its team Top 30 lists and there were some big movers up the rankings. Some were bigger than others, with many prospects jumping into the top 10 in their respective organizations. Here are 11 prospects who made the largest jumps (listed in parentheses) into their organization’s top 10.
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Jason Schiavone, C/1B, Astros No. 3 (+28)
Schiavone is all about extremes at the plate, rarely chasing pitches while generating high-end exit velocities and good launch angles, but also logging alarming swing-and-miss rates against all type of offerings inside and outside the strike zone. The 11th-rounder in 2024 from James Madison has made it work, slashing .266/.416/.556 with 23 homers and 21 steals in 80 games between High-A and Double-A. He's also improving behind the plate, where he features plus arm strength.
Cooper Flemming, INF, Rays No. 4 (+23)
A second-round pick out of the California high-school ranks, Flemming was a late pusher up Draft boards in 2025 as a taller, left-handed-hitting shortstop at 6-foot-3, and his momentum hasn’t stopped in his first year of pro ball. He is hitting .288/.383/.446 with eight homers and a 127 wRC+ over 83 games with Single-A Charleston, showing off enough contact markers to project as a potential above-average hitter with the size for good pop. In an organization loaded up the middle, the 19-year-old emerged as Tampa Bay’s top prospect at the six -- that is until Grady Emerson joined the fold.
Bryan Balzer, RHP, Padres No. 7 (+21)
Balzer showed flashes of what could make him a special pitcher with a sinker reaching the upper-90s and a plus slider last season, but he still proved hittable with a 7.92 ERA, 1.78 WHIP and .310 average-against over 50 innings with Single-A Lake Elsinore. He returned to the California League to begin 2026 and has added more of his upper-80s splitter that seems to have really opened up his arsenal. His strikeout rate is up a few ticks to 23.5 percent between Single-A and High-A, his walk rate is down to 9.0 percent and it’s easier to see a pathway forward for the 21-year-old to become an even more dominant arm down the line.
Allen Facundo, LHP, Yankees No. 9 (+17)
Signed for just $20,000 out of Venezuela in May 2021, Facundo missed all of 2022 with shoulder issues and had Tommy John surgery in 2024. He has come back to work at 94-96 mph and reach 100 with his fastball while also dealing some nasty mid-80s sliders. He's enjoying the best season of his career, compiling a 3.71 ERA, .166 opponent average (best in the Minors) and 105 strikeouts in 77 2/3 innings between two Class A stops.
Cristian Arguelles, OF, Rockies No. 6 (+16)
Signed for $700,000 in January of 2024, Aguelles won the Dominican Summer League batting title and MVP award in his second summer there, hitting .422 with an OPS of 1.180. He hasn’t stopped since he came stateside this season, currently leading the Arizona Complex League in average (.402), slugging percentage (.671), OPS (1.149) and RBIs (70), which is why we jumped him from No. 22 up to No. 6.
Austin Overn, OF, Rays No. 9 (+16)
Another significant jumper from the Tampa Bay system, Overn has made a lot of fans in the organization with his top-of-the-line speed and defense after he was acquired from Baltimore in the offseason deal for Shane Baz. On top of that, he’s slugging above .500 for the first extended time in his career with a .516 mark over 54 games in Double-A, and while he might sell out for power at times, there are those in the organization who believe his contact issues are correctable enough to give him everyday upside up the middle. In other words, he’s just the Rays’ type.
Malcolm Moore, C, Rangers No. 4 (+14)
The 30th overall pick in the 2024 Draft, Moore endured a rough first full season in pro ball, breaking a finger on his right hand in early April and batting .198/.293/.271 in High-A while getting overly aggressive at the plate. After regaining his health and toning down his approach, the Stanford product is showing the offensive prowess that made him a first-round pick. He's batting .280/.369/.516 with 15 homers in 72 games between High-A and Double-A while making progress with his defense.
Alirio Ferrebus, C/1B, Phillies No. 7 (+14)
Ferrebus jumped from No. 21 up to No. 7 on the Phillies’ list thanks to the outstanding season he’s having in the Florida State League, his first full year with Single-A Clearwater. He tops the FSL with his .328 average, his .530 SLG and .909 OPS while posting a robust 134 wRC+.
Axiel Plaz, C/1B, Pirates No. 6 (+12)
Injuries really hampered Plaz last year and he’s showing what kind of damage he can do this season when healthy. He’s always hit the ball hard, with plenty of raw power, and he’s getting to it to the opposite field this season. He’s slashing .307/.388/.485 (third in the High-A South Atlantic League in hitting) with 10 homers, and is not a creation of Greensboro’s friendly confines (.863 OPS on road vs. .883 at home).
Jackson Cox, RHP, Rockies No. 7 (+12)
The Rockies thought Cox had considerable upside potential when the took him in the second round of the 2022 Draft. But he made just 10 appearances in 2023 before getting shut down and Tommy John surgery kept him out for all of the 2024 season. Last year was a good first step back, with 85 healthy innings, and now he’s reached Double-A in 2026 with bat-missing stuff. His fastball (up to 99 mph) and his breaking stuff all feature impressive spin and have led to an overall miss rate of 33 percent, which is why he currently leads the Minors with 122 strikeouts.
Justin Campbell, RHP, Guardians No. 9 (+12)
The Guardians made Campbell a supplemental first-round pick out of Oklahoma State in 2022, but repeated elbow issues required two surgeries and a wrist ailment necessitated a third operation. Finally making his pro debut this year, he has posted a 2.61 ERA, .179 opponent average and 66 strikeouts in 51 2/3 innings between High-A and Double-A. His fastball is sitting at 94-95 and touching 97, up 3 mph from his college days, and all of his secondaries (low-80s slider, upper-70s curveball, low-80 changeup) show flashes of becoming at least solid offerings.