Churchill founded Prospect Insider in 2006 and spent several years covering prep, college and pro sports for various newspapers, including The News Tribune and Seattle PI. Jason spent 4 1/2 years at ESPN and two years at CBS Radio.
Find Jason's baseball podcast, Baseball Things, right here.
Reading Time: 26 minutes In the 20 years I’ve now ranked Mariners prospects (yep, 20) I’ve never had more fun than I did with this group. A year ago, there were over 70 prospects in the system with big-league traits. This winter, there areFULL STORY
Reading Time: 4 minutes Projected 2025 Lineup I don’t believe there’s value anymore in projecting more than two years ahead, nor is there value to including a free-agent prediction or trade, though we know there will be many between now and then. The pointFULL STORY
Reading Time: 3 minutes DOYLE CHURCHILL NO PLAYER POS NO PLAYER POS 1 Bryce Miller RHS 1 Harry Ford C 2 Harry Ford C 2 Bryce Miller RHS 3 Felnin Celesten SS 3 Felnin Celesten SS 4 Cole Young SS 4 Michael Arroyo 2B/3BFULL STORY
Reading Time: 2 minutes Two days after inking seven players, led by SS Felnin Celesten, the Seattle Mariners announced six more additions to their international class. Joe Doyle & I provided analysis of the class and Celesten in particular in the latest episode ofFULL STORY
Reading Time: 2 minutes Over the past year or so, the Seattle Mariners have swapped promising young talent for prven big-league players on numerous occasions. The deals landing the club Luis Castillo, Jesse Winker, Eugenio Suarez, and Teoscar Hernandez cost the club several ofFULL STORY
Reading Time: 4 minutes As I’ve shared on various social media platforms and in the Baseball Things Slack recently, we may have a new No. 2 prospect when my rankings are published in February. While Dominican shortstop Felnin Celesten doesn’t yet count and isn’tFULL STORY
Reading Time: 3 minutes With the announcement Seattle Mariners 21-year-old phenom Julio Rodriguez was the 2022 American League Rookie of the Year comes a team reward in the form of the No. 29 pick in the 2023 MLB Draft. Seattle’s own pick in RoundFULL STORY
Reading Time: 3 minutes The Seattle Mariners announced Wednesday four roster moves, including a waiver claim of left-handed reliever Gabe Speier from the Kansas City Royals. The club also outrighted RHR Casey Sadler and LHR Ryan Borucki, both have elected to become free agents.FULL STORY
Reading Time: 4 minutes This may be surprising to read or hear, but it’s been a little while since the Seattle Mariners last had a farm system ranked in the bottom half of the league. Jerry Dipoto started the farm rebuild long before tearingFULL STORY
Reading Time: 5 minutes It’s that time of year again, but here’s a reminder this is not a Player of the Year situation, it’s very specifically Prospect of the year, meaning a prospect’s potential impact and development drive his candidacy, not pure performance. Before we get toFULL STORY
Reading Time: 4 minutes Major League Baseball announced the Arizona Fall League rosters Friday, including nine players from the Seattle Mariners organization. The AFL isn’t what it used to be; the time is often used to get reps for players that have been outFULL STORY
Reading Time: 21 minutes While I rail on the fact prospect rankings do not carry inherent value, they can serve one very partcular functional purpose, and that’s to sort the value in a club’s farm system. Of course, these rankings are subjective, do not reflect the evaluations ofFULL STORY
Reading Time: 13 minutes With several premium talents having graduated over the past 15 months, the Seattle Mariners’ farm system is looking a lot different. Here is my update on the system that has produced Kyle Lewis, Julio Rodriguez, Cal Raleigh, George Kirby, andFULL STORY
Reading Time: 2 minutes In this post, Curtis Christianson and Jason A. Churchill will note any changes in Jarred Kelenic‘s setup and swing. At least anything noticeable to the naked eye. In Kelenic’s last dozen games or so, he has been starting to turnFULL STORY
Reading Time: 4 minutes Every day is a fun day down in the minors (except Mondays), but some stick out a little more than others. Sunday was one of those days. Here are the highlights: Ken Giles Sunday, Giles made his fifth appearance sinceFULL STORY
Reading Time: 6 minutes A month ago it was all about Edwin Arroyo, and while the 19-year-old had a terrific May, he’s got company this time. Arroyo hit .300/.377/.539 with six homers last month, but his teammate had a monster month in the powerFULL STORY
