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Chris Clegg's dynasty fantasy baseball buy lows, sell highs, and MLB news for Week 11 (2025). Notable prospects debuts and dynasty risers/fallers including..
Welcome back, RotoBallers, to my dynasty fantasy baseball risers, fallers, and buys/sells for Week 9 of the 2025 MLB season. As May comes to a close, sample sizes have begun to stabilize, and there is less noise in the samples. Prospects are getting the call to majors, and there is plenty to discuss.
Roman Reigns! Today's dynasty article will look at recent prospect call-ups like Roman Anthony, Ryan Ritter, Otto Kemp, and Jac Caglianone, along with several other dynasty-related news items. This bi-weekly series will examine various prospects and dynasty news and discuss fantasy implications. If you enjoy dynasty baseball, you know it is a fast-paced game. Keeping up with current events can help you stay ahead of your league mates.
Call-ups, trends, and buying and selling players are all just small pieces to help you stay ahead. So, that's what we will do in this article each week: break down everything you need to know to be successful in dynasty. At the end of the day, we all want to build a dynasty team that sustains and lasts for the long haul. I am here to help you do so. So, what do you need to know for dynasty leagues in Week 11 of the 2025 season? Let's dive in.
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Recent MLB Prospect Call-Ups
It is Roman Anthony time, and it is about time the promotion finally happened. Despite reaching Triple-A last year as a 20-year-old and not turning 21 until May 13, Anthony did nothing but mash in Worcester. In 434 Triple-A plate appearances, Anthony slashed an impressive .311/.440/.513 with as many walks as strikeouts. He left no doubt he was ready for the majors.
He is hitting the cover off the ball. Anthony heads to Boston with an average exit velocity of 95 mph, which jumps to 100 mph on balls hit in the air, and his 90th percentile exit velocity is an elite 109.6 mph. While Anthony's biggest flaw is his ground-ball rate, he still runs a 20 percent barrel rate this season.
Anthony's contact rate sits at 73 percent, but his in-zone contact rate sits near 84 percent. The chase rate is an impressive 18 percent. The crazy thing is Anthony nursed a sore shoulder for a while and still put up gaudy numbers. Despite being young, he feels more than ready to hit in the majors, even against more advanced pitching.
The combo of skills is just too good.
Before his promotion, Ryan Ritter still had an 18-game hit streak, which will pair with a 24-game on-base streak. His slash line is strong: .305/.413/.635. The bat took a major leap forward this season.
Having an interesting skill set, Ritter has made tangible improvements this year, starting with his approach. After an alarming 34 percent chase rate last season, Ritter has dropped that number down to 25 percent, which is a notable improvement. He also shows improved strike-zone awareness, swinging at way more balls in the zone and over the heart of the plate.
While Ritter’s average exit velocity of 86 mph does not jump off the page and is honestly not great, he does have a 37 percent hard-hit rate. The launch angle has helped lead to a nine percent barrel rate.
Ritter's contact numbers have steadily improved throughout the season, and he is striking out at just a 20 percent clip. The 70 percent contact rate could be better, but Ritter playing his home games in Coors Field will help mask some of the swing and miss, as he should run higher BABIPs to help out his batting average.
Jac Caglianone was promoted to Kansas City with some of the best exit velocities in baseball. Running a 90th percentile exit velocity of 111.6 mph across both levels is a mark that is only bested by Oneil Cruz, Aaron Judge, and Vladimir Guerrero Jr. this year. This is not a new thing, though, as we have known that Caglianone's power is elite for a long time.
The approach has been cleaned up a bit this year, and Caglianone is making more than enough contact. The overall contact rate is up to 74 percent, with an in-zone mark of around 84 percent. That, paired with an improved chase rate, is good. Right now, Caglianone is chasing around 34 percent of the pitches he has seen out of the zone.
Caglianone has just six hits in six games in the big leagues, and four of them came in one game. While Caglianone has not taken a walk to this point, he is actually showing respectable contact rates, and the chase rate has remained in line with what we saw in the minors this year. The power is coming, and Caglianone is worth investing in.
An undrafted free agent out of Point Loma Nazarene, Otto Kemp is an unlikely candidate to be in the majors. Kemp did nothing but mash the last two years and earned his spot. After hitting 16 home runs with 20 stolen bases in 2024, Kemp blasted 14 home runs in 269 Triple-A plate appearances and posted an impressive .313/.416/.594 slash line.
While not having flashy tools, Kemp is a steady performer. He makes consistent contact, showing average or better overall and in-zone marks. The chase rate was better than the league average, and Kemp posted pretty respectable exit velocities.
Kemp has a quick and simple swing, using his lower half to generate a ton of power. Hitting a ball near 116 mph last year stands out, and this season, we saw Kemp run high barrel rates and a 91.2 mph average exit velocity. Kemp is very effective on the base paths.
Having played every position in the field except catcher and centerfield in 2024, Kemp's versatility could allow him to stay in Philadelphia if he hits.
Dynasty Trends: Ground-ball Rate Risers and Fallers
Is it possible to totally transform your launch angle and hit fewer groundballs without sacrificing other skills? It seems to be a question that has been asked a lot about Vladimir Guerrero Jr. Hitting the ball in the air typically leads to more in-game power. So, which hitters are hitting the ball in the air more often, and has it led to improved results?
Ground-ball Rate Fallers
| Player | 2024 GB% | 2025 GB% | Delta |
| Lars Nootbaar | 51.6 | 33.9 | -17.7 |
| Pete Crow-Armstrong | 42.5 | 27.7 | -14.8 |
| George Springer | 49.8 | 35.9 | -13.9 |
| Jazz Chisholm Jr. | 49.8 | 37.3 | -12.5 |
| Jose Caballero | 42.4 | 31 | -11.4 |
| Andrew Benintendi | 38.3 | 27 | -11.3 |
| Yainer Diaz | 51.2 | 40.8 | -10.4 |
| Zach Neto | 45.2 | 36.6 | -8.6 |
Ground-ball Rate Risers
| Player | 2024 GB% | 2025 GB% | Delta |
| Keibert Ruiz | 35.1 | 48.9 | 13.8 |
| Byron Buxton | 29.1 | 40.5 | 11.4 |
| Jackson Merrill | 36.8 | 46.6 | 9.8 |
| Carlos Santana | 38 | 47.6 | 9.6 |
| Francisco Lindor | 34.8 | 43.9 | 9.1 |
| Heliot Ramos | 43.3 | 51.9 | 8.6 |
| Matt Olson | 35.9 | 44.3 | 8.4 |
| Fernando Tatis Jr. | 46.2 | 53.9 | 7.7 |
Fantasy Baseball Dynasty Buys and Sells
Yainer Diaz feels like a great buy right now in both redraft and dynasty leagues. After hitting .299 last year, Diaz has seen his batting average fall substantially to .237 to pair with a .271 OBP. A large difference? A .259 BABIP compared to a .338 mark last season.
If you find someone not paying attention, they may not know that Diaz is picking things up as of late. He has three multi-hit games in his last four, and the underlying data for the season looks better in a lot of ways than it did in 2024.
Diaz is making more contact, hitting the ball harder, and getting it in the air more often. There has been some bad luck for him, but things are looking up.
Heliot Ramos has creeped into sell-high territory for me. I dislike it because I do like Ramos as a player, but some of the trades I have seen him be a part of lead me to believe it's a good time to cash out. On the surface, Ramos has a .294/.360/.484 slash line with 11 home runs and five stolen bases.
It seems like every day he collects a hit and continues the solid run.
While regression is possible, I don't think Ramos will be bad, but rather closer to an average player. The barrel rate and exit velocities are strong, but it is the approach and contact that give me pause.
The ground-ball rate is up this year to 52 percent, and Ramos's pull rate is below average. The chase rate is worse than average, and Ramos is swinging at just 72 percent of pitches over the heart of the plate. While he has mashed fastballs this season, Ramos could find himself struggling against breaking balls more often, given the 30 percent whiff rate against them.
If you can cash out Ramos for a top-75 dynasty asset, I would consider doing so.
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