Andy's top pitching fantasy baseball prospects to stash for Week 13 (2026). His MLB prospects to pick up and stash on your bench and N/A spots in redraft leagues.
Welcome back to our top starting pitcher fantasy baseball prospects to stash for Week 13 of the 2026 MLB season. With another week of MLB and MiLB action in the books, it's time to check in on our top-5 pitching prospects to stash for the upcoming week.
This week, we saw a familiar name be placed on the 7-day injured list, which will ultimately push him into the honorable mentions section. However, a name that avid readers last season may recall will take his place.
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River Ryan, Los Angeles Dodgers
Currently at Triple-A
After sitting in the No. 2 spot in last week's column, Los Angeles Dodgers right-hander River Ryan will retake the top spot on our stash list. Ryan missed the entire 2025 season after undergoing Tommy John surgery late in 2024, but has since returned to the bump and looks like his former self.
The right-hander was healthy in spring training, but the Dodgers opted to option him to Triple-A to further build up his workload. While he hit a brief roadblock early in the season with a brief stint on the 7-day injured list, Ryan is once again back in action at Triple-A and is looking sharper than ever before. He is now firmly knocking on the MLB door.
Since reappearing from the injured list on May 15, Ryan has made five starts for Oklahoma City (25 innings) and posted an elite 2.16 ERA with a stellar 1.00 WHIP. During this stint, Ryan has struck out 30 hitters while walking just five hitters.
What makes this stretch even more impressive is that a rough four-run effort during this stretch significantly inflated his ratios. Removing this lone outlier showing from his box score, the No. 77-ranked prospect on MLB.com would have allowed just two total runs over 19 innings of work.
While his current progression has already put him at the top of the stash list, his path to joining the reigning two-time World Series champions is also very clear. Currently, the Dodgers rotation is dealing with several injuries, with Blake Snell and Tyler Glasnow both on the injured list.
In the short term, the Dodgers have turned to Eric Lauer to serve as their No. 6 option, but the 31-year-old does not have the longest track record of success this season. While he has a 3.22 ERA since joining the Dodgers, he carries a 5.37 ERA this season. If Lauer takes a step back (5.30 xERA), or if another Dodgers starter joins Snell or Glasnow on the shelf, Ryan will get the call.
His current production makes him a top option to stash in 12+ team leagues and in all formats that have N/A spots.
River Ryan is in Jumbo Jack territory as he gets his 7th strikeout confirmed by ABS 🍔 pic.twitter.com/Xyr1vN0EMs
— Hyeseong Kim Muse 김혜성 (@HyeseongKimMuse) June 10, 2026
Kade Anderson, Seattle Mariners
Currently at Double-A
Even though Anderson fell to No. 2 on our list, he is still a worthy stash in leagues that have N/A spots. This week, a lot of news came out in Seattle regarding the future of its rotation. According to Adam Jude of The Seattle Times, the Mariners will look to "piggyback" each of their starters throughout the All-Star break.
This means that each member of their organization will have a piggyback pitch behind them. This will not only keep all six starters involved but also maintain their spots in major roles on the MLB roster. As a result, the budding ace Anderson will have to wait longer to make his MLB debut.
Additionally, a report by Jude noted that the former LSU superstar is not in the team's "immediate" plan, which aligns with the team's rotation changes. While managers in shallower leagues should only stash Anderson if they have N/A spots, his upside on a per-start basis remains just as high.
Through his first 11 professional starts in the Seattle system, the former third overall pick has been nothing short of incredible. Across 55 2/3 innings at Double-A, the southpaw has posted a 1.13 ERA with a 0.66 WHIP. During this stretch, the lefty has racked up 82 punchouts while walking only seven total hitters.
Also, like Ryan, Anderson's ratios have been inflated by rough showing. Removing his five-run effort on May 15, the southpaw would have an incredible 0.35 ERA and a 78:7 K:BB over 51 2/3 innings. His path to the majors is not overly clear, but his upside is the highest among any names on this list.
Kade Anderson is awesome. Final line: 6.2IP, 3H, 0R, 0BB, 6K, 13 whiffs, 8 groundouts, 80 pitches, 55 strikes.
In 11 professional starts:
6-0, 1.13ERA, 55.2IP, 30H, 7BB, 82K. pic.twitter.com/f9IcBeLRKN— Mariners Minors (@MiLBMariners) June 13, 2026
Quinn Mathews, St. Louis Cardinals
Currently at Triple-A
Those who read this column last season will recognize this name instantly. Quinn Mathews took the minor leagues by storm in 2024 when he progressed through the Cardinals system at an incredible rate. During that season, he tossed 143 1/3 innings (through all four levels) and posted a 2.76 ERA, 0.98 WHIP, and a 202:49 K:BB.
As a result, entering the 2025 season, the lefty was on the verge of a debut. However, he would log only 99 innings and stumble through most of them, which lowered his prospect upside. Through 94 innings of those innings (at Triple-A), Mathews posted a 3.93 ERA with a rough 1.60 WHIP and a 107:74 K:BB.
While these struggles persisted early in the 2026 campaign, Mathews has been making significant strides against the top hitters in the minor leagues. Through his first 35 2/3 innings of work, the Stanford product posted a 5.55 ERA with a hefty 7.6 BB/9.
However, as with the progression Hagen Smith enjoyed, Mathews has begun to get a grip on his command. Over his last three starts, Mathews has logged 16 innings of work with a 0.56 ERA and a much-improved 2.8 BB/9. In his last two outings, Mathews has logged 12 innings with a near-perfect 15:2 K:BB.
While he will need to show this progress over a much longer period, his improvements have put him on the stash list.
The other reason Mathews is an intriguing stash candidate is his path to the majors. With the Cardinals in competition for a Wild Card spot, promoting Mathews to the back end of their staff will give them far more upside than what they are currently receiving.
Since May 1, the team's No. 4 starter, Andre Pallante, has posted a 3.99 ERA. Their No. 4 option, Kyle Leahy, has held a high 6.38 ERA over his last four games.
Quinn Mathews electric night is done
6 IP
1 H
0 ER
1 BB
9 K61% strikes with 16 whiffs on the night (47% whiff rate). The slider, changeup, and curveball all had over a 50% whiff rate. pic.twitter.com/I002ifjvsb
— Redbird Farmhands (@RedbirdFarmhand) June 5, 2026
Carlos Lagrange, New York Yankees
Currently at Triple-A
The next name we will spotlight will not be deployed as a traditional starter in the majors, but he is still worth closely monitoring as he approaches his promotion to the big leagues.
Carlos Lagrange opened the 2026 season at Triple-A, operating as a typical starter, but did not enjoy the most sustained success. Across 40 innings of work, the hard-throwing right-hander posted a modest 4.41 ERA with a 1.33 WHIP. While he totaled 63 punchouts, he walked a rather high 25 hitters (4.6 BB/9).
However, following this slow start, Lagrange was moved to the bullpen not only to assist in his transition to Triple-A, but also to create a clear path for him to join a Yankees rotation that is quite deep to them often, especially with Gerrit Cole and Carlos Rodon both back in action. Since moving to the bullpen in a long-relief role, Lagrange has looked far more comfortable.
Through his first three "long-relief" showings, the No. 73-ranked prospect has posted a 2.73 ERA with a 0.93 WHIP. Over this stretch, Lagrange has struck out 15 punchouts while walking on only three (over 9 2/3 innings).
Last summer, splitting time across High-A and Double-A, Lagrange racked up 168 punchouts over just 120 innings.
If he maintains this pace, Lagrange could realistically be in before the All-Star break. While managers in standard "saves only" leagues should look elsewhere, those in holds (or SOLDS) should monitor their status. Lagrange could easily carve into a high-leverage spot, sharing the seventh and eighth innings with Fernando Cruz.
His elite whiff potential could quickly push him up the SOLDS rankings if he were to pitch in high-leverage positions.
Carlos Lagrange was stellar as he makes the transition to the bullpen with the @swbrailriders:
4 IP | 1 H | 0 R | 2 BB | 7 K
The @Yankees' No. 4 prospect touched 101.4 in the relief appearance with is fastball sitting 98.5 mph. pic.twitter.com/dzhYNwayCt
— MLB Pipeline (@MLBPipeline) June 3, 2026
Karson Milbrandt, Miami Marlins
Currently at Triple-A
The next name we will spotlight has recently moved up to Triple-A but has done far more than hold his own. As we have noted in previous editions of this column, Milbrandt was not projected to even compete for his MLB debut this season, given that he began the season at Double-A and he was toward the end of the line in a stacked pitching pipeline.
However, with Robby Snelling and Thomas White both on the shelf and slated to miss the remainder of the season, Milbrandt now sits as the "next best" option in this deep pitching system.
With Double-A, Milbrandt quickly put his name on the radar, tossing 47 innings of work with a 1.34 ERA and a 1.00 WHIP. During this nine-inning stint, Milbrandt struck out an eye-catching 90 hits and walked 17. Last summer, Milbrandt spent the majority of his time with High-A (where he posted a 3.26 ERA) before earning a brief two-start stint with Double-A.
Seeing him quickly adjust to Double-A hitters and showcase high-end strikeout potential moved him up to Triple-A Jacksonville much sooner than anticipated. Since joining the top club in the Miami pipeline, the No. 100-ranked prospect in the sport (per MLB.com) has looked even more dominant, which keeps him firmly in the top five.
Through his first two starts at Triple-A Jacksonville, Milbrandt has held an 0.82 ERA (one earned run) with an 8:6 K:BB. While he has allowed three hits in each of these two starts, he has limited the damage and continued to showcase his strikeout potential with a seven-punchout effort coming on June 13.
Lastly, like the two fellow prospects in the system, both Snelling and White were top stash options for much of the first half, given their clear path to the majors. Fortunately, Milbrandt has a very similar path to a near-future debut.
Currently, the Marlins have many of their "MLB" starters on the shelf. As of writing, Janson Junk and Eury Perez are both on the 15-day IL, leaving Tyler Phillips and Ryan Gusto as the depth arms in the staff.
While Milbrandt will need to showcase this production at Triple-A for a few more outings, he is quickly going from "second-half debut" to potential "pre-All-Star break" debut, given the team's injured rotation and his dominance at the top club.
Just Karson being Karson. 🤷♂️
In his Triple-A debut, Karson Milbrandt is through five scoreless innings on two hits, two walks and a strikeout.#Marlins pic.twitter.com/zKLqFOrBH0
— Fish On First Prospects (@FOFProspects) June 7, 2026
Other Prospects To Consider Stashing
- Hagen Smith, CWS (moved to 7-day IL)
- Elmer Rodriguez, NYY
- Brody Hopkins, TB
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