MLB Pipeline

MLB Pipeline

Find out about the stars of tomorrow, from the guys who know today. Jim Callis (@jimcallisMLB) and Jonathan Mayo (@JonathanMayo) are your tour guides for this ride through the unfolding stories & breaking news in Minor League Baseball. From top prospects to scouting executives to farm directors, the MLB Pipeline is jam-packed with exclusive coverage of the minors you can't get anywhere else.

Episodes

November 4, 2025 88 mins
On the latest edition of the Pipeline Podcast, Jim Callis, Jonathan Mayo and Jason Ratliff put a bow on the recently completed World Series by recapping the drama and the many heroes on both sides. Next up are discussions of the Rookie of the Year finalists, the always perilous long-term rookie rankings (Roman Anthony vs. Nick Kurtz!) and the Gold Glove winners. Then the guys shift their focus to the Minors (which current prospects...
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Our Pipeline Podcast hosts still have a little gas left in the tank after an epic 18-inning World Series contest, and Jim Callis, Jonathan Mayo and Jason Ratliff begin by discussing the Game 3 thriller featuring typical heroes (Freedie Freeman, Shohei Ohtani) and one we never saw coming (Will Klein). After that, they shift their focus to the Arizona Fall League. They talk about the most recent Hitter and Pitcher of the Week (Tigers...
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While the baseball world understandably has much of its focus on the impeding World Series, the MLB Pipeline crew has been keeping tabs on the other exciting action in the Arizona Fall League. Sam Dykstra, Jonathan Mayo and Jason Ratliff spent the bulk of this week's episode digging into the AFL, from top performances from Pirates sluggers Esmerlyn Valdez and Tony Blanco Jr. to pitching performances from the Orioles left-hander Lui...
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Despite uncharacteristic rainouts wreaking some havoc on Week 1 of the Arizona Fall League, there was plenty of action to discuss for Jim Callis, Jonathan Mayo and Jason Ratliff on this week's episode. They talked about the Hitter and Pitcher of the Week as well as some other standout performers from the first set of games before Jim chatted with A's rookie Max Muncy, who is back in the AFL for the second time. Then Jason quizzed J...
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On the latest edition of the MLB Pipeline Podcast, Jim Callis and Jonathan Mayo focus on the rookie pitchers who have delivered huge performances in the playoffs: Cam Schlittler (Yankees), Trey Yesavage (Blue Jays), Roki Sasaki (Dodgers) and Jacob Misiorowski (Brewers). Also regarding the postseason, they discuss the prospect pedigrees of the participants, including seven players who ranked No. 1 on the Top 100 Prospects list. The ...
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September 30, 2025 76 mins
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 ...
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September 23, 2025 63 mins
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 highlig...
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September 16, 2025 68 mins
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, ...
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September 9, 2025 51 mins
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 pros...
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September 2, 2025 77 mins
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 ...
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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 leve...
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August 19, 2025 74 mins
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 Chandle...
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August 12, 2025 70 mins
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 organiz...
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August 5, 2025 61 mins
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 ...
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July 29, 2025 62 mins
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 re...
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July 22, 2025 68 mins
On the latest MLB Pipeline, Jim Callis, Jonathan Mayo and Jason Ratliff cover not one deadline but two: Draft signings (July 28) and trades (July 31). They begin by discussing Draft deals, including No. 1 overall pick Eli Willits getting $8.2 million from the Nationals, and then chat about which clubs had the best Drafts and which draftees will reach the Majors the quickest. Then it's trade talk, from which contenders have the incl...
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It's a wrap for the MLB Pipeline crew in Atlanta for the busiest time on the Pipeline calendar. Jim Callis, Sam Dykstra, Jonathan Mayo and Jason Ratliff gathered together to break down all the action on site and in person. They started off by analyzing the Draft, first by addressing the somewhat surprising top two picks and looking at surprises in the first round, then picking a steal for each of the top 10 rounds. Then the guys sh...
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We're just days away from both the Futures Game and the Draft and Jim Callis, Jonathan Mayo and Jason Ratliff can hardly contain their excitement on this week's MLB Pipeline Podcast. They kick things off by diving in to a number of Draft storylines, from what might happen at the very top of the Draft to two sets of twins (the Parkers and the Witherspoons) set to be drafted, and much more. Then Jim chats with high school lefty flame...
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July is the busiest month on the prospect calendar, so there's plenty to unpack in the latest Pipeline Podcast. Jim Callis, Jonathan Mayo & Jason Ratliff begin by breaking down the phenom-packed rosters for next week's Futures Game, which features 35 Top 100 Prospects, including Nationals right-hander Travis Sykora, who joins the podcast. Sykora also made one of the biggest moves up in our freshly revised Top 100 list, and the guys...
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On this week's episode of the Pipeline Podcast, Jim Callis, Jonathan Mayo and Jason Ratliff review the exciting finish to the College World Series and discuss prospects who helped their Draft standing with their performances, led by LSU left-hander Kade Anderson and Arkansas right-hander Gage Wood. Then the guys discussed the amazing first two big league starts by Jacob Misiorowski of the Brewers, previewed the debut of fellow fir...
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