Five Prospects Under the Radar: April 2026

Three weeks of minor league games, and the public rankings still haven't caught up. The MLB Pipeline Top 100, the Baseball America Top 30s, and even the rating engines are still anchored to 2025. Right now there's a window where the tape is louder than the ranking.

These five names are the clearest examples I see of that gap. Each one is putting up a 2026 line that is meaningfully ahead of his current ranking, his preseason expectations, or both. Two of them I already own. One I am actively looking to sell into the early hype. One I had not even put on my radar until I went looking for this article. And one of them was already on my chase list last winter.

Here's what I've been watching.

Cooper Flemming, SS, Tampa Bay Rays

Flemming was on my 2025 Bowman Draft chases list back in January, and he's the reason this article exists. I went to look at his 2026 line, saw .952 OPS at Low-A as a 19-year-old shortstop, and started wondering how many other names had quietly produced numbers that loud without anyone outside of the org's player development group noticing. Turns out: a lot.

The profile is exactly what Tampa Bay drafted in the second round last summer. A 50/50 hit/power, lefty stroke that sprays line drives to all fields, and a 55-grade arm that makes him a candidate to stay at short. The bonus was over slot ($2.297M, bought him out of a Vanderbilt commitment), so the Rays' development group has clear conviction. The 13.9% walk rate is against a manageable 17.7% K rate.

He just got named to MLB Pipeline's Prospect Team of the Week (April 13-19). I own a good amount of his cards, all raw. Still affordable at $20 raw.

Braylon Payne, OF, Milwaukee Brewers

I'll get this out of the way: I've been out on Payne. The 17th overall pick in 2024 hasn't passed my eye test, and the early hype around the speed and the EVs feels a half-step ahead of where the bat actually is. The 2026 line is solid (1.175 OPS, 11 walks against 13 strikeouts) and I'm not going to pretend it isn't.

Scouts grade him 70-run with EVs up to 110 mph, and FanGraphs has him compared to Kendall George, the Dodgers' supplemental first-rounder from 2023 who runs a similar speed-first center field profile. Milwaukee considers him the org's fastest baserunner and best athlete. That's a real toolkit.

But speed-first center fielders without a clear hit tool and power are not a hobby friendly profile. The Brewers system is also an interesting call here. Their player development has been good, but their hitting development specifically has been less consistent than the pitching side. Twelve games of hot tape doesn't change my read. I'll continue watching from the sidelines.

DJ Layton, 2B, Baltimore Orioles

Layton was not on my radar before I started this article. A 6th-round pick out of Charlotte Christian (signed for $715K, overslot by ~$381K) who spent 2025 in the Florida Complex League hitting .203 with a .379 OBP. Not exactly a name that stays in your notebook over the offseason.

But .203 with a .379 OBP is the kind of stat line that says something specific. The contact wasn't there yet, but the pitch recognition was. Now at Low-A, the 2026 update is .327 with a .479 OBP, 16 walks against 24 strikeouts, and seven steals. The discipline that was there in the FCL is now showing up with the contact attached. He was named to the Orioles' 2026 Spring Breakout roster as an unranked outfielder, which suggests the org sees the same pattern.

The card market is starting to find him. The 2025 Bowman Chrome 1st auto base is up materially over the trailing 30 days off a $7 base. That's the kind of move that happens when one or two collectors notice the line, post about it, and the rest follow. I'm not in yet but I'm watching. Eight bucks for a lefty-batting (technically switch-hitting) 19-year-old running a 1.006 OPS in Low-A with a 22.5% walk rate is, at minimum, an interesting dart.

Ronny Cruz, SS, Washington Nationals

Cruz has been on my radar for a few weeks now, and I'll just say up front that he is the name on this list closest to graduating off it. Washington just promoted him to High-A Wilmington and he homered in his first game at the new level.

The backstory matters because his card is going to confuse people who only see the recent comps. Cruz was a third-round pick by the Cubs in 2024 (signed under slot at $620K), and he was the headline piece of the Michael Soroka trade Washington made last summer. The 2025 Bowman Chrome auto pictures him as a Cub. If you go searching for the card and see a blue uniform, that is the right player. He just plays for a different organization now.

The reason I'm bringing him up here is the price action. Two weeks ago his base auto was sitting around $13. Today it's pushed past $50, with the PSA 10 comp moving from $169 to $212 in the same window. That's not a quiet uptrend. That's the market catching up to the production. Geoff Pontes at Baseball America wrote that Cruz "looks a lot like Fernando Tatis Jr. did at the same point in their development," and once a comp like that starts circulating, the floor moves with it. I do not own Cruz, and at $53 I am not chasing. But I respect the move and I am paying attention to where it settles.

Nathan Flewelling, C, Tampa Bay Rays

Flewelling is the second Rays prospect on this list, and the second one whose org sees more in him than the national rankings do. A third-round Canadian prep catcher (signed for $774K out of Alberta), he is built like a power hitter, posted a 112.4 mph max EV at the Combine, and just spent his age-18 season drawing 94 walks across two A-ball levels. That's the second-highest walk total in all of MiLB. As a 19-year-old catcher.

The 2026 line is strong. He went from .230/.393/.341 in 2025 to .346/.443/.712 at High-A this year, and the power that was projected as 70-grade raw is starting to show up in games. Five home runs in 15 games as a 19-year-old catcher is a different player than the patient on-base guy from last summer. Tampa Bay clearly thinks so too. They aggressively promoted him to High-A and Baseball America has him #10 in the system entering the year.

I own a couple of Flewelling cards, and I'm honestly looking for my chance to sell. The card is up about 70% over the trailing 30 days. My concern is not the bat or the discipline. It's whether this offensive profile translates as the levels get harder, and I am not convinced yet.

Two Things to Watch

A few things shape how I'm reading this list over the next month.

Sample size. All five of these guys have somewhere between 12 and 18 games of 2026 data. Hot starts that look this loud usually regress, even for the real ones. The names on this list that are still putting up these numbers in mid-May are the ones that matter. The ones that come back to earth are the lesson for next time.

The ranking lag. The HM rating engine and most public lists are still using 2025 at-bats as the larger sample, which means the 2026 production is only partly baked into the ratings you're seeing today. By mid-June, that flips when you see mid-season rankings updates from the big publications, especially MLB pipeline and Baseball America. The collectors who are positioning now are the ones betting the production sticks. The collectors who wait for the rankings to update are paying a different price, which can still pan out, like it did for Konnor Griffin.

I'm holding Flemming, watching Layton, sitting on Cruz, and looking to sell Flewelling. Payne I'm passing on entirely. None of these are predictions. They're current positions on current information, and they will all change as the data does.

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This is not financial advice. These are cards. The data and analysis are here to inform. You make your own calls.

This article was generated with the assistance of AI and reviewed before publishing. Always verify latest market data, stats, or news.

Published: April 2026