

MLB Pipeline
MLB.com
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
Mentioned books

Oct 27, 2020 • 59min
Just how good is Randy Arozarena?
Jim Callis, Jason Ratliff and Mike Rosenbaum put the World Series in a prospect context by discussing the ongoing heroics of Randy Arozarena and where he would rank among the best postseason rookies of all time. Does his performance merit him soaring up MLB Pipeline's Rays Top 30 Prospects list and the overall Top 100? After that, Jason tests Jim and Mike with a quiz on past scouting reports of current World Series participants. The guys also discuss instructional league with a focus on Nationals pitchers and open the reader mailbag to answer a question about relief prospects.
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Oct 20, 2020 • 1h 4min
The World Series and Jazz
Jonathan Mayo, Jason Ratliff and Mike Rosenbaum dig into the World Series as only the Pipeline crew can (though they did make their predictions), looking at how the Dodgers and Rays were built and ranking the World Series players as prospects. Mayo does a deep dive into how the Rays acquired postseason hero Randy Arozarena and interviews Marlins rookie Jazz Chisholm.
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Oct 13, 2020 • 1h 6min
Scouts honor
On this week's Pipeline Podcast, Jim Callis, Jonathan Mayo and Jason Ratliff talk about the rookies still making headlines in the postseason, led by the Rays' Randy Arozarena and the Braves' Ian Anderson. The trio really dig into the story of how Anderson was scouted and became the No. 3 overall pick of the Braves back in 2016 before Jim interviewed Rays Scout James Bonnici, the scout who signed ALDS hero Mike Brousseau. Sights turned to next year's Draft as the 2021 Draft order has been set before finishing off with a question from fans about Dodgers catching prospect Keibert Ruiz.
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Oct 6, 2020 • 1h 3min
Twins Prospect Alex Kirilloff; Top Rookie Postseason performances and a Statcast Rookie Roundup
Twins prospect Alex Kirilloff joins the Pipeline Podcast this week and he and Jonathan Mayo discuss playing at the Twins alternative site, making the postseason roster and then making history by getting his first hit during his MLB debut in the postseason. Mayo, Jason Ratliff and Mike Rosenbaum break down other rookies making impressions this postseason. The trio also looks in-depth how these postseason teams were built and which Draft class has the biggest impact among playoff teams. Also, Mike discusses his article ranking the top rookies through statcast metrics. Plus, they answer your questions.
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Sep 30, 2020 • 1h 7min
The Postseason Cometh!
Jim Callis, Jonathan Mayo and Jason Ratliff have all things at the intersection of prospects and the MLB playoffs covered, starting with a look at how all 10 top farm systems two years ago are in the postseason now. The trio make their postseason selections, look at rookies who both have made playoff contributions in the past and could impact the postseason this year, looking closely at a pair of surprising Top 100 callups in the Twins’ Alex Kirilloff and the Rays’ Shane McClanahan. After discussing the Top 25 rookies list, they looked at the change in rookie eligibility rules and the Draft date before finishing off by dipping into the mailbag to answer your questions.
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Sep 23, 2020 • 1h 7min
Rage Week: Potential No. 1 pick Kumar Rocker; ranking rookies; Callis and Mayo bet
On this week’s episode of the MLB Pipeline Podcast, Jim Callis, Jonathan Mayo and Jason Ratliff discuss their ranking of 2020's rookies and the rage it incites among readers. Vanderbilt Ace and potential No. 1 Draft pick Kumar Rocker joins the show. The guys discuss the MLB debuts of Garrett Crochet and Mickey Moniak, Jim and Jonathan's bet about Moniak vs. Zach McKinstry, and rookies who could make an impact this postseason. Plus, they answer your questions.
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Sep 15, 2020 • 1h 2min
A Look Ahead to the 2021 Draft, Rookie Power Rankings, Standouts in Alternate Camps
On this week’s episode of the MLB Pipeline Podcast, Jim Callis, Jonathan Mayo and Jason Ratliff break down the best college and high school prospects for the 2021 Draft and explain how the pandemic has affected scouting. They also reveal a new No. 1 player on the Rookie Power Rankings, discuss Rangers catcher Sam Huff's MLB debut, discuss the most exciting prospects in each team's alternate camp and answer your questions.
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Sep 9, 2020 • 1h 12min
Mariners Prospect Taylor Trammell, MLB’s Hottest Rookies and a look toward the 2021 Draft
On this week’s episode of the MLB Pipeline Podcast, recently traded Mariners prospect Taylor Trammell joins the show. Jim Callis, Jonathan Mayo and Jason Ratliff break down the most improved farm systems in baseball. Plus, find out who joins Rays Outfielder Randy Arozarena among MLB’s hottest rookies. The guys also look toward the 2021 MLB Draft after last week’s Perfect Game All-American Classic. Finally, the trio discusses Jonathan’s roundtable with five MLB Black Scouts which can be found on mlb.com/pipeline.
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Sep 2, 2020 • 1h 10min
Top prospects dealt at the Trade Deadline
Jim Callis, Jonathan Mayo and Jason Ratliff dig into the Trade Deadline and all of the prospects who changed teams as a result, then touch on how trades and the 2020 Draft impact the new farm system rankings. From there, the trio discuss the latest Rookie Power Rankings and examine the Rookie of the Year races before looking at the big league debuts of top prospects like the Braves’ Ian Anderson and the Yankees’ Deivi Garcia while looking forward to the debut of Ke’Bryan Hayes of the Pirates.
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Aug 26, 2020 • 1h 11min
The Year of the Prospect!
On this week’s Pipeline Podcast, Jim Callis and Jonathan Mayo talk about the vast quantities of top-tier prospects who have been called up and are currently in the big leagues, as well as the reasons why this is the “Year of the Prospect.” Jim and Jonathan go through the Top 100 prospects who have made their debuts in just the last week alone before discussing the hottest rookies in the game, starting with Rookie of the Year candidates Kyle Lewis and Jake Cronenworth. The duo wraps up the episode by looking into a crystal ball for ideas on which prospects might get traded before the Trade Deadline.
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