MLB Pipeline Makes Bold 2026 Prospect Predictions for All 30 Teams

We are all about the future at MLB Pipeline." That declaration opens the latest installment from editors Jonathan Mayo, Jim Callis, and Sam Dykstra: a 30-item prospect prediction feature that assigns one bold forecast to a top prospect from every MLB organization headed into the 2026 season. As a companion piece to the recently published organization Top 30 prospect lists, the feature keeps the momentum of prospect season going with a harder, more speculative edge.

The premise is straightforward, even if the predictions are not. "Obviously, any talk about prospects and who they might become involves some prognostication," the editors write. "Fresh off flexing those muscles to present every organization's Top 30 prospects list, we're keeping our crystal ball in active mode to provide a prospect prediction for each team." The range of forecasts spans the spectrum from measured to aggressive. "Some might seem obvious, but we'll also take some big swings here with a 'go-big-or-go-home' attitude," the piece notes. "We'll be sure to check back on these to see how good we are at looking into the future." That accountability angle gives the feature its teeth; these aren't throwaway takes, they're documented predictions that Mayo, Callis, and Dykstra will be measured against.

The full feature spans all 30 MLB organizations, though the source material provided here details two team vignettes in full. Both represent different flavors of prediction: one is a system-wide organizational projection built around a cluster of newly acquired talent, and the other is a singular power-bat forecast rooted in a clearly established developmental pattern.

Houston Astros: Kevin Alvarez and a System Rebuilding in Real Time

The Astros vignette is the more structurally ambitious of the two. Houston enters 2026 without a single representative on MLB Pipeline's preseason Top 100 Prospects list, a distinction that has become something of a recurring theme. "For the third time in the past five years, the Astros don't have a single representative on MLB Pipeline's preseason Top 100 Prospects list," the feature states plainly. For an organization that long carried one of baseball's most fearsome competitive windows, the prospect-pipeline picture has been notably thin.

The prediction, then, is a swing: "But they'll have three Top 100 prospects by the end of the year, the most since they had six on our preseason 2019 rankings." That projection is built entirely on a trio of players who all signed in 2025, making it one of the faster talent-to-ranking pipelines the feature forecasts for any club.

The three prospects at the center of that prediction are Kevin Alvarez, Xavier Neyens, and Ethan Frey. Alvarez, an outfielder and the Astros' current No. 1 organizational prospect, is described as "the best hitter in the system." He signed as part of the 2025 international class and is characterized as "one of the most polished position players" in that cohort, a designation that signals advanced feel for contact and approach rather than raw tools alone.

Neyens and Frey arrived through a different door. The two are identified as Houston's top two Draft picks, both signing last year. Neyens, a shortstop, is labeled "their best power prospect," while outfielder Ethan Frey earns the description of having "their best combination of both tools," suggesting a balance of bat and power that makes him perhaps the most projectable of the three in terms of overall profile.

"All three signed last year," the feature notes, "Alvarez as one of the most polished position players in the 2025 international class and Neyens and Frey as Houston's top two Draft picks." The speed with which all three could conceivably move into the national Top 100 within their first full professional year would represent a meaningful inflection point for a system that has been operating largely below the radar of the sport's elite prospect landscape. If the prediction holds, the Astros' six-prospect showing on the 2019 preseason Top 100 remains the benchmark, but three would be a significant step toward relevance in that conversation.

Seattle Mariners: Lazaro Montes and the 40-Homer Projection

Where the Astros prediction is a collective organizational forecast, the Mariners entry focuses entirely on Lazaro Montes, an outfielder ranked fourth in Seattle's system and 43rd overall on MLB Pipeline's MLB-wide prospect rankings. The power tools are not in question. "There are few prospects with more raw power than Montes," the feature states, and the numbers behind that claim are substantial: a career .518 slugging percentage and a .245 ISO heading into the 2026 season.

The concern, acknowledged directly, is swing-and-miss. Montes posted a 29 percent strikeout rate last year, a figure that can limit a prospect's offensive floor regardless of how gaudy the power numbers look. But the feature pushes back on reading that rate in isolation. "Yes, there's swing-and-miss to worry about with a 29 percent K rate last year, but he also draws walks." The walk rate is unquantified in the excerpt, but its presence in the scouting summary suggests a disciplined enough approach to keep his on-base tools functional even as the strikeout rate remains elevated.

What makes the Montes projection particularly grounded is the developmental pattern the editors identify. "He has established a pattern of earning an in-season promotion, struggling initially at the new level then conquering it the following year." That cycle, earn the jump, stumble, then dominate, is the explicit foundation for the 2026 prediction. The forecast is that Montes will start the year back at Double-A, prove himself at that level quickly enough to earn a mid-season promotion to Triple-A, and finish the year with 40 home runs total.

"Look for him to do that back at Double-A this year, earning a boost to Triple-A and upping his season home run total to 40 after hitting 21 in 2024 and 32 a year ago." The progression is notable on its own terms: 21 homers in 2024, 32 in 2025, and now 40 projected for 2026. That arc is consistent and steep. If the pattern holds, Montes would arrive at Triple-A in the second half of the season as one of the most productive power bats in the minors, regardless of what the strikeout rate looks like.

28 More Predictions Still to Surface

The two excerpts provided represent just the visible edge of a much larger feature. The full piece covers all 30 MLB organizations, and the editors have confirmed their intent to revisit and evaluate these predictions as the season unfolds. For followers of the minor leagues, especially at the Triple-A level where many of these prospects are headed, the feature serves as a forecast map for the development stories worth tracking across a full season. The predictions are on the record, the prospects are named, and the editors have publicly committed to accountability. The 2026 minor league season will provide the answers.