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Martin Sekulski

@mski22.bsky.social
1.2K followers 133 following 576 posts

Christian. Husband. Father. All of my opinions are my own. CEO of Four-Seam Fantasy & Dynasty writer for PitcherList! Substack is free for all. I write about baseball and that's all I do. Red Sox Nation since 1986 substack.com/@fourseamfantasy

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Martin Sekulski @mski22.bsky.social · 10h
One of my favorite pieces of the year!! Check it out!
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Martin Sekulski @mski22.bsky.social · 26/09/2026
It’s been a long year and this piece caps it all off! The final Dynasty 400 rankings get at PL
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Martin Sekulski @mski22.bsky.social · 25/09/2026
Dynasty 600 Update: September 2026 It's been a ridiculously fun regular season with a ton of burning the midnight oil! Thank you all for your continued support! If you're not subscribing and want to support my work, please do! msekulskifantasy.substack.com/p/dynasty-60...
msekulskifantasy.substack.com
Dynasty 600 Update: September 2026
The final update of the 2026 regular season is here, and it will serve as the foundation for the pre-2027 rankings (which I’ve already released at various points).
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Martin Sekulski @mski22.bsky.social · 16/09/2026
Beyond honored to join my guy @jeff-erickson.bsky.social live at 5EST to prepare dynasty managers for a very busy offseason! x.com/jeff_erickso...
x.com
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Martin Sekulski @mski22.bsky.social · 16/09/2026
2026 Arizona Fall League (AFL) Preview Rosters are now set, so what better time to take an early look at the 2026 Arizona Fall League! Inside you'll find top prospect breakdowns, notes about each team, and a few sleepers to watch this year in the Desert msekulskifantasy.substack.com/p/2026-arizo...
msekulskifantasy.substack.com
2026 Arizona Fall League (AFL) Preview
A look ahead at a star-studded Arizona Fall League
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Martin Sekulski @mski22.bsky.social · 15/09/2026
Top 100 FYPD Rankings v3.0 The latest update to my Top 100 FYPD rankings includes movement by a few prep bats, what to do about Justin Lebron, and how high is too high for Zion Rose? msekulskifantasy.substack.com/p/top-100-fy...
msekulskifantasy.substack.com
Top 100 FYPD Rankings v3.0
The third edition of my Top 100 FYPD Rankings is now live, and we’ve had some decent movement.
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Martin Sekulski @mski22.bsky.social · 14/09/2026
Prospect Press: September 2026 The final edition of the Prospect Press looks at promotions, injury news, and the AFL! msekulskifantasy.substack.com/p/prospect-p...
msekulskifantasy.substack.com
Prospect Press: September 2026
The MiLB regular season has come and gone, finishing with a flurry of big-time promotions to the Majors, along with plenty of news along the way.
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Martin Sekulski @mski22.bsky.social · 10/09/2026
Prospect 400: September Update The final in-season Prospect 400 Update is LIVE. Also have the positional rankings and Top 15 by team! The offseason will be very busy, so subscribe now! msekulskifantasy.substack.com/p/prospect-4...
msekulskifantasy.substack.com
Prospect 400: September Update
The final in-season Prospect 400 release is now LIVE!
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Martin Sekulski @mski22.bsky.social · 04/09/2026
Late-season MiLB Standouts Just because its the end of the MiLB season doesn't mean we can stop paying attention. If you have, here are some late-season standouts to take note of msekulskifantasy.substack.com/p/late-seaso...
msekulskifantasy.substack.com
Late-season MiLB Standouts
Even though the season is coming to an end, we can’t overlook some of the top performers in the Minors to close out 2026.
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Martin Sekulski @mski22.bsky.social · 03/09/2026
Dynasty Manager Offseason Checklist As the season winds down, what's next for dynasty managers? I've dreamed about putting something like this together for a while, so hopefully this will serve as a very helpful guide for dynasty owners! Subscribe ⚾️ msekulskifantasy.substack.com/p/dynasty-ma...
msekulskifantasy.substack.com
Dynasty Manager Offseason Checklist
The days are numbered for the 2026 baseball season, which means 90% of us can officially start looking ahead to a very busy and uncertain offseason.
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Martin Sekulski @mski22.bsky.social · 02/09/2026
Dynasty FAAB: September 2026 The final regular-season edition is LIVE. I really enjoyed writing this piece throughout the season, S/O to Mailman Mike from the Bubba and the Bloom Discord for the idea early on this season! msekulskifantasy.substack.com/p/dynasty-fa...
msekulskifantasy.substack.com
Dynasty FAAB: September 2026
Dynasty FAAB is a tough topic to explore, as everyone’s league is different and the free-agent process may not involve FAAB at all.
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Reposted by Martin Sekulski
Pitcher List @pitcherlist.com · 31/08/2026
pitcherlist.com
August Prospects of the Month
August's Prospects of the Month are highlighted!
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Martin Sekulski @mski22.bsky.social · 31/08/2026
Hot Weather, Cold Results Taking a quick look at notable players seeing a dip in their dynasty value with poor second-half performances. msekulskifantasy.substack.com/p/hot-weathe...
msekulskifantasy.substack.com
Hot Weather, Cold Results
The Dog Days of August are nearly over, with the final push for the pennant in full gear.
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Martin Sekulski @mski22.bsky.social · 27/08/2026
Projecting Offseason Dynasty Risers Doing some early speculating about what players will see their dynasty value improve dramatically this offseason. msekulskifantasy.substack.com/p/projecting...
msekulskifantasy.substack.com
Projecting Offseason Dynasty Risers
The next part of the end-of-2026 series is a look at dynasty assets I’m projecting to see the biggest jumps in value during the offseason.
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Martin Sekulski @mski22.bsky.social · 26/08/2026
Prospects I Cannot Quit As 2026 slowly fades, I decided to wax poetic about a handful of prospects I refuse to give up on! Check it out. msekulskifantasy.substack.com/p/prospects-...
msekulskifantasy.substack.com
Prospects I Cannot Quit
Next up, as we close out 2026, it’s time to look at a few prospects that I still believe in despite subpar seasons.
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Martin Sekulski @mski22.bsky.social · 21/08/2026
What 2026 Has Taught Us: Dynasty Edition A little rambling, but a lot of thoughts on what I have learned this season as it relates to dynasty leagues and team builds. msekulskifantasy.substack.com/p/what-2026-...
msekulskifantasy.substack.com
What 2026 Has Taught Us: Dynasty Edition
With the fantasy season winding down, it’s time to start our look back at the year that was, from a dynasty perspective.
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Martin Sekulski @mski22.bsky.social · 21/08/2026
AL East farm systems got a big overhaul at the deadline. Here is my latest over at PL breaking down my updated Top 15 prospects for each team! pitcherlist.com/al-east-top-...
pitcherlist.com
AL East Top Prospect Updates
The top prospects of the AL East are featured
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Martin Sekulski @mski22.bsky.social · 17/08/2026
Late-Season Dynasty Breakouts To Know A quick look at the players who are improving their dynasty stock the most to close out 2026 msekulskifantasy.substack.com/p/late-seaso...
msekulskifantasy.substack.com
Late-Season Dynasty Breakouts To Know
With playoffs starting in most leagues, plus the NFL season rapidly approaching, this is the time of the year when 70% of your league checks out.
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Martin Sekulski @mski22.bsky.social · 13/08/2026
My latest and greatest over at PL! Check it out!
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Martin Sekulski @mski22.bsky.social · 13/08/2026
Prospect Press: August 2026 Breaking down all the latest and greatest in the prospect world! Check it out! msekulskifantasy.substack.com/p/prospect-p...
msekulskifantasy.substack.com
Prospect Press: August 2026
It’s been a very busy time in the prospect/dynasty world with the influx of the 2026 draft class, the MLB trade deadline, promotions, injuries, and more.
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Martin Sekulski @mski22.bsky.social · 12/08/2026
Top 100 FYPD Rankings- v2.0 Updated Top 100 FYPD rankings plus some context about early trends, players trending up and down, as well as some late-round upside plays! Subscribe now!⚾️ msekulskifantasy.substack.com/p/top-100-fy...
msekulskifantasy.substack.com
Top 100 FYPD Rankings- v2.0
Now that the ink is dry on all of the contracts and the class of 2026 has been incorporated into both prospect and dynasty rankings, plus has some in-game action, it’s important to level set on the FY...
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Martin Sekulski @mski22.bsky.social · 10/08/2026
August 2026 Fantasy Baseball Rankings Update Updated rankings are live! Dynasty 600 Dynasty 600 by Position Prospect 400 Prospect 400 by Position Top 15 Prospects by Team! So much work, but the reward is so awesome! Subscribe now ⚾️ msekulskifantasy.substack.com/p/august-202...
msekulskifantasy.substack.com
August 2026 Rankings Update
I appreciate everyone’s patience as I worked through a dynasty overhaul, adding in the 2026 Draft Class and shifting my focus to 2027.
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Martin Sekulski @mski22.bsky.social · 07/08/2026
Dynasty Notes: August 2026 My monthly look at all things dynasty including injuries, playing time trends, prospects, etc. Check it out! msekulskifantasy.substack.com/p/dynasty-no...
msekulskifantasy.substack.com
Dynasty Notes: August 2026
In the 30 days since the July edition of Dynasty Notes dropped, we’ve had the MLB Draft, the Trade Deadline, and of course, more injuries.
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Martin Sekulski @mski22.bsky.social · 04/08/2026
Nearly 8k words covering 32 fantasy-relevant trades with an emphasis on the effects on your dynasty rosters! Enjoy! And as always, please subscribe for plenty more dynasty content!! substack.com/@fourseamfan...
substack.com
2026 Trade Deadline: Dynasty Edition
This was one of the busier deadlines in recent memory as many teams were still in the hunt, making it a seller’s market.
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Martin Sekulski @mski22.bsky.social · 29/07/2026
Four Things That Can Drastically Alter the FYPD Class of 2026 Taking a look at a few 'what ifs' as it relates to the latest FYPD class! open.substack.com/pub/msekulsk...
open.substack.com
Four Things That Can Drastically Alter the FYPD Class of 2026
The FYPD Class of 2026 is an interesting group that many have called top-heavy, or even boring outside of the Top 5-8 picks.
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Martin Sekulski @mski22.bsky.social · 27/07/2026
Prospect Promotion Watch: 7.27.2026 A flurry of recent MiLB promotions requires a recap! Check it out! open.substack.com/pub/msekulsk...
open.substack.com
Prospect Promotion Watch: 7.27.2026
Typically, I try to only do one of these per month, but man, the prospect world is on fire with a litany of promotions following the 2026 MLB Draft.
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Martin Sekulski @mski22.bsky.social · 27/07/2026
Post-Draft: Prospect 400 The August/post-draft Prospect 400 is now live! Top 400 Prospects, Prospects by Position, and a Top 15 Prospects by Team! I'm exhausted! Like. Follow. Subscribe. ⚾️ open.substack.com/pub/msekulsk...
open.substack.com
Post-Draft: Prospect 400
The August update is always challenging, as infusing the current group of prospects with the recent MLB Draft class can become a bit of a mess.
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Martin Sekulski @mski22.bsky.social · 23/07/2026
We’ve all heard this before but the August update with the 2026 draft class is a monster. I’ve come to expect significant shifts every month so buckle down and hold on tight
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Martin Sekulski @mski22.bsky.social · 23/07/2026
Prospects to Target at the Trade Deadline Is your dynasty team selling at the deadline? Over a dozen prospects to target at this year's trade deadline with an eye on your competitive window in '27, '28, or '29. Free for all, but I love new subscribers! open.substack.com/pub/msekulsk...
open.substack.com
Prospects to Target at the Trade Deadline
With the fantasy trade deadline approaching, this week’s focus is to identify the top sell-highs, buy-lows, prospects to acquire, strategies for selling, etc.
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Martin Sekulski @mski22.bsky.social · 22/07/2026
Top Buy-Low Dynasty Assets This piece felt like a good idea and then Kevin Gausman got shelled tonight. Either way, here we go! open.substack.com/pub/msekulsk...
open.substack.com
Top Buy-Low Dynasty Assets
Looking at the rest of 2026 and for 2027
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Martin Sekulski @mski22.bsky.social · 20/07/2026
Sneaky Productive Prospects You Should Know Not everyone has to be a breakout prospect, or a consensus Top 100 player to be fantasy relevant. Here are a few high-performing Minor Leaguers who should be on your radar! open.substack.com/pub/msekulsk...
open.substack.com
Sneaky Productive Prospects You Should Know
We get so enamored with the breakout, five-tool guys that sometimes the most productive players in the Minors fall off the radar.
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Martin Sekulski @mski22.bsky.social · 19/07/2026
Top Sell-High Dynasty Assets The first of a multi-part series previewing the fantasy trade deadline and identifying players to buy and sell, strategies for rebuilding or contending teams, and more! open.substack.com/pub/msekulsk...
open.substack.com
Top Sell-High Dynasty Assets
With the fantasy trade deadline approaching, this week’s focus is to identify the top sell-highs, buy lows, prospects to acquire, strategies for selling, etc.
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Martin Sekulski @mski22.bsky.social · 19/07/2026
With Shohei off the mound for the time being, it’s an interesting time to consider trading him in dynasty. I wrote this piece up earlier this year, essentially predicting he would be done on the mound in the near future. Check it out! substack.com/@fourseamfanta…
substack.com
Search "fourseamfanta…" on Substack
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Martin Sekulski @mski22.bsky.social · 17/07/2026
Prospect Storylines for the 2nd Half Condon's debut, Walcott's return, workloads for SP1s, and so much! Diving in on the biggest things to watch in the prospect world over the next few months! open.substack.com/pub/msekulsk...
open.substack.com
Prospect Storylines for the 2nd Half
The ‘second-half’ officially kicks off this week as the Minor Leaguers return from the Futures Game and the MLB All-Star Festivities wrap up.
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Martin Sekulski @mski22.bsky.social · 16/07/2026
Here is where the Class of 2026 falls in my Top 100 fantasy prospects Roch Cholowsky #8 Grady Emerson #26 Vahn Lackey #32 Drew Burress #70 Jackson Flora #79 Eric Booth Jr #81 Trevor Condon #93 Chris Hacopian #97 Jacob Lombard #99
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Martin Sekulski @mski22.bsky.social · 16/07/2026
Prospect Press: 7.15.2026 Recapping the Futures Game, a look at some recent promotions, news and notes, and more! open.substack.com/pub/msekulsk...
open.substack.com
Prospect Press: 7.15.2026
With the Futures Game, MLB Draft and All-Star Game now in the rear-view mirror, we can focus on the second half of an already exciting 2026.
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Martin Sekulski @mski22.bsky.social · 14/07/2026
The Draft is over. FYPD season is here or approaching. My first Top 100 is here, plus a primer on risk and floor, sleepers, late-round values, etc. substack.com/@fourseamfan...
substack.com
FYPD Top 100 v1.0
The MLB Draft had no shortage of surprises or talent, as the much-anticipated Class of 2026 is now professional baseball players after being drafted by their new organizations.
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Martin Sekulski @mski22.bsky.social · 12/07/2026
MLB Draft, Day 1: Fantasy Edition I put together some preliminary thoughts on the best fits, best early classes, and some fantasy-focused notes recapping Day 1 of the MLB Draft. open.substack.com/pub/msekulsk...
open.substack.com
MLB Draft, Day 1: Fantasy Edition
Day one of the 2026 MLB Draft is over, and it was quite the event.
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Martin Sekulski @mski22.bsky.social · 10/07/2026
Lower Ranked Prospects w Top 25 Upside Looking for that upside play? Look no further! Taking a look at guys outside the Top 100 with the potential to climb to the Top 25 if it all clicks open.substack.com/pub/msekulsk...
open.substack.com
Lower Ranked Prospects w Top 25 Upside
So often in the dynasty world, you’re only as good as your farm system or MiLB roster.
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Martin Sekulski @mski22.bsky.social · 08/07/2026
Hot off the press!! Updated Dynasty 600 which includes July prospect updates!! Subscriber exclusive! Don’t miss out! substack.com/@fourseamfan...
substack.com
Dynasty 600: July Update
If you’ve read my work for any period of time, you know two things.
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Martin Sekulski @mski22.bsky.social · 08/07/2026
15 Prospects who WILL debut in the 2nd Half Everyone loves some bold predictions, so let's look at 15 prospects that will debut in the second half AND what my projection is for their fantasy performance! open.substack.com/pub/msekulsk...
open.substack.com
15 Prospects who WILL debut in the 2nd Half
In the interest of bold predictions, or going out on a limb, what better way to take a shot than to project ahead a few weeks.
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Martin Sekulski @mski22.bsky.social · 06/07/2026
It’s getting close to Trade Deadline season on your dynasty leagues! I love helping to answer questions and offer advice! If you DM me, please make sure you include your league settings and any applicable salary/keeper implications in addition to the typical would you rather!
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Martin Sekulski @mski22.bsky.social · 06/07/2026
Third Base Wasteland Diving into the Top 30 at the 3B position in dynasty. I’m uncovering just how bad the position is and how I’d be attacking it as a fantasy owner! Subscribe now! open.substack.com/pub/msekulsk...
open.substack.com
Third Base Wasteland
As I work through my dynasty rankings, the third base position sticks out like a sore thumb.
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Martin Sekulski @mski22.bsky.social · 06/07/2026
Dynasty Notes: July 2026 This month we're looking at injury updates, prospects on the trade block, and more! Subscribe now! open.substack.com/pub/msekulsk...
open.substack.com
Dynasty Notes: July 2026
Baseball season is arguably the most intense and diabolical time of the year.
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Martin Sekulski @mski22.bsky.social · 05/07/2026
MiLB Hot or Not: 7.4.2026 Back at it with a little Hot or Not, covering the best and worst MiLB performers from June open.substack.com/pub/msekulsk...
open.substack.com
MiLB Hot or Not: 7.4.2026
It’s the Fourth of July, which signals it’s the start of the ‘second half’ of the baseball season.
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Martin Sekulski @mski22.bsky.social · 03/07/2026
Pre-Draft Prospect 400 Update As promised, here is a link to the final pre-draft Prospect 400 release! It includes the Top 400, by position, and the new Top 15 prospects for each team! open.substack.com/pub/msekulsk...
open.substack.com
Pre-Draft Prospect 400 Update
The final pre-draft release of the Prospect 400 has arrived.
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Martin Sekulski @mski22.bsky.social · 01/07/2026
Projecting Key 2nd Half Dynasty Assets Taking a look at guys trending in the right direction as the 2nd half approaches open.substack.com/pub/msekulsk...
open.substack.com
Projecting Key 2nd Half Dynasty Assets
The All-Star Game is now just three weeks away, as the top stars in the game will take the field for the 96th edition of the Midsummer Classic.
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Martin Sekulski @mski22.bsky.social · 29/06/2026
Dynasty FAAB: July 2026 Looking at some prospects to target in your FAAB leagues, starting with shallow leagues working all the way through AL and NL only. Enjoy! open.substack.com/pub/msekulsk...
open.substack.com
Dynasty FAAB: July 2026
Dynasty FAAB is a tough topic to explore, as everyone’s league is different and the free-agent process may not involve FAAB at all.
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Martin Sekulski @mski22.bsky.social · 27/06/2026
Sharing some personal news. I’ve been a little behind in content production. For the better part of the last year, my oldest has been battling an eating disorder and has been in an out of treatment. Over the past week, she’s been hospitalized, leaving me with the youngest
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Martin Sekulski @mski22.bsky.social · 24/06/2026
The boys and I are back digging into 3rd base and the available options in dynasty and future prospects with high impact!
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