MLB Pipeline

Latest Episodes:

From prospect to postseason Sep 30, 2025

Show notes

In this week's episode of the MLB Pipeline Podcast, Jim Callis and Jonathan Mayo dive into the about-to-begin MLB postseason as only the Pipeline crew can, by looking at how each of the 12 postseason teams constructed their rosters, highlighting the Guardians' homegrown-heavy squad and how teams like the Mariners and Brewers have relied on trades to build a winner. Jim then sits down with Mariners scout Rob Mummau, who scouted and signed MVP candidate Cal Raleigh in college. Then Jim and Jonathan do a 10-pick draft of 2026 Draft prospects from their Top 20 college and high school lists before finishing off with a Mailbag question about this year's MiLB Awards.

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Wrapping Up The Minor League Season Sep 23, 2025

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With the Minor League season coming to an end, Jim Callis, Sam Dykstra and Jason Ratliff focus on the top performances of 2025 in the latest Pipeline Podcast. They begin by breaking down the candidates for Hitting Prospect of the Year (Konnor Griffin/Pirates, Kevin McGonigle/Tigers, J.J. Wetherholt/Cardinals) and Pitching Prospect of the Year (Griffin Herring/Rockies, Jonah Tong/Mets, Trey Yesavage/Blue Jays). The guys also highlight some of the best power/speed seasons, including a 20-60 performance by Griffin and the third straight 20-20 year from the Rays' Carson Williams. Also on the agenda: the new International Top 50 Prospects list for 2026, and a mailbag question about how likely it is that we'll see the best prospects in the Minors right now playing in the Majors next year.

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A Packed Podcast Sep 16, 2025

Show notes

Hosts Jim Callis, Jonathan Mayo and Jason Ratliff dish on a wide variety of subjects in the latest MLB Pipeline Podcast, starting with breaking down the newly released Arizona Fall League rosters that include two of the game's four best prospects in shortstops Kevin McGonigle (Tigers) and Sebastian Walcott (Rangers). Jonathan interviews another top shortstop in Colt Emerson (Mariners) before the guys discuss the Double-A playoffs, which are loaded with star talent. Then there's more: recent callups Trey Yesavage (Blue Jays) and Bryce Eldridge (Giants), Jonathan introduces a new game ("Who Am I?") for Jason and Jim to play and a listener mailbag question about AFL award predictions. (edited)

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Prospects In Playoffs Sep 09, 2025

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The Minor League playoffs have begun at the Single-A and High-A levels, and this week's Pipeline Podcast begins by breaking down the top prospects to watch in postseason action. Jim Callis, Jonathan Mayo and Jason Ratliff highlight that contingent, which includes the No. 1 pick (Eli Willits) and No. 1 prospect (Ethan Holliday) in the 2025 Draft as well as seven other Top 100 Prospects. The guys also discuss the two most recent prospects to join the Top 100 list, Pirates outfielder Edward Florentino and Giants shortstop Josuar Gonzalez, and preview the next addition (You'll have to listen to find out!). After that, they talk about players who made the Prospect Team of the Week most often this season, led by Reds third baseman Sal Stewart, and field not one but two listener mailbag questions from members of the band Subway Ghosts.

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Promotions galore Sep 02, 2025

Show notes

Jim Callis, Jonathan Mayo and Jason Ratliff are back together for the first time in a long time for this week's MLB Pipeline Podcast, and that affords them the opportunity to take a look at the deluge of big league callups and debuts of Top 100 prospects from the past couple of weeks. On the pitching side, they break down the Pirates' Bubba Chandler, Red Sox lefty Payton Tolle and Mets right-hander Jonah Tong. There have been five hitters to get the call of late and the guys talk about all of them: Carson Williams (Rays), Jhostynxon Garcia (Red Sox, Sal Stewart (Reds), Harry Ford (Mariners) and Carter Jensen (Royals). After that, talk turns to the Arizona Fall League and a "wish list" of prospects Jim and Jonathan hope to see in the league this year. Before finishing up with a question from the Mailbag, Jim and Jonathan take a few minutes to pay tribute to legendary scout Roy Clark, who recently passed away.

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Prospect double-dip (Guests: Aidan Miller and Konnor Griffin) Aug 26, 2025

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For this week’s MLB Pipeline Podcast, Jonathan Mayo made a stop in Altoona, Pa., to check in on two of the best infield prospects in the game. He started with the Phillies’ Aidan Miller, who has made some serious adjustments to his approach to finish his season with Double-A Reading red-hot. Then he moved over to the home clubhouse to chat with No. 1 overall prospect Konnor Griffin of the Pirates, who just got promoted to that level. Before those conversations, Sam Dykstra and Jonathan break down the top farm systems based on three groupings: infielders, outfielders and pitchers. And the duo comes back after the interviews to answer a Mailbag question about Royals pitching prospects.

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Promotions galore! (Guest: Eli Willits) Aug 19, 2025

Show notes

Before being joined by this year's No. 1 overall Draft pick, Nationals shortstop Eli Willits, Sam Dykstra, Jonathan Mayo and Jason Ratliff talk prospect promotions, starting with the exciting big league debuts of the Orioles' Samuel Basallo, the Mets' Nolan McLean and Owen Caissie of the Cubs. From there, the discussion turns to Top 100 prospects we could see in the big leagues before the end of the year (Pittsburgh's Bubba Chandler, Philadelphia's Andrew Painter and St. Louis' JJ Wetherholt). The trio turns it attention to guys on the move in the Minors, highlighting the recent promotions of No. 1 prospect Konnor Griffin and No. 3 Leo De Vries, both now in Double-A as teenagers, before finishing up with a Mailbag question about Padres first-rounder Kruz Schoolcraft.

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New Top 100, New Top 30s, New Farm Ranks Aug 12, 2025

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MLB Pipeline has updated all of its prospect lists this week, so Jim Callis, Sam Dykstra and Jason Ratliff discuss all the changes on the latest edition of the Pipeline Podcast. They start with the overall Top 100 Prospects, headlined by shortstops Konnor Griffin (Pirates) and Kevin McGonigle (Tigers), and also delve into where the 2025 draftees fit and which players made the biggest jumps. Next, they break down how the new organization Top 30s feed into the revised farm system rankings led by the Dodgers, Twins and Mariners. Then they preview the star-studded MLB High School All-American Game and finish by fielding a listener mailbag question about Mets righty Jonah Tong.

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Recapping The Trade Deadline Aug 05, 2025

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Action was fast and furious at the Trade Deadline last week, and Jim Callis, Jonathan Mayo and Jason Ratliff break it all down on the latest edition of the Pipeline Podcast. They beginning by discussing the three Top 100 Prospects who changed addresses: Leodalis De Vries to the Athletics, Eduardo Tait and Mick Abel to the Twins. Then they talk about other interesting prospects who got dealt and which farm systems improved the most after receiving trade infusions. After that, they highlight some upwardly mobile prospects in advance of next week's rankings overhaul at MLB Pipeline and take a listener mailbag question about prospects who could get called up and make a difference in the postseason.

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One Deadline down, one to go Jul 29, 2025

Show notes

This week's MLB Pipeline Podcast comes between Deadlines, with the Draft signing deadline in our rearview and the Trade Deadline just a couple of days away. Jim Callis, Jonathan Mayo and Jason Ratliff start with the former, with Jim and Jonathan drafting Top 100 prospects they think could be dealt ahead of Thursday's Trade Deadline, then discussing some of the ranked prospects who have already changed teams. From there, the guys review the Draft signing deadline, highlighting that just two of the players selected in the top 10 rounds didn't sign. Then the pod turned to the past to provide prospect snapshots of the recent Hall of Fame induction class, including Dave Parker, Billy Wagner, CC Sabathia and Ichiro. They finished things up with a Mailbag question about Kristian Campbell of the Red Sox.

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