Dynasty Fantasy Baseball Crystal Ball - Projecting The Top 10 Second Basemen for 2029

November 29, 2025

Kevin projects the top 10 fantasy baseball dynasty second basemen going into the 2029 MLB season. His top MLB second basemen prospects to increase their fantasy values for dynasty leagues include Luke Keaschall, Jazz Chisholm Jr., Brice Turang, and more.

This is the third article of my offseason Dynasty Crystal Ball Series, where I project the top 10 players at each position for the 2029 season. In dynasty, it's important to understand the current value of players, but being able to project their value going forward is a way you can get ahead of the rest of your league mates.

We're looking at the second base position, one of the weakest positions in fantasy. Could this position receive an infusion of talent in the coming years through prospects and players changing positions?

Let's take a look at how the second base position will look for dynasty in three years. A note about how I'm looking at positions for these rankings is that I'm giving my best assumption on what each player's primary position will be going into 2029, and only ranking them in one position. Check here if you missed any of the prior rankings: (Catcher), (First Base)

• BvP matchups data (Batter vs. Pitcher)
• PvB matchups data (Pitcher vs. Batter)
• Who should I start? Fantasy baseball comparisons
• Who should I pickup? Fantasy baseball comparisons
• Fantasy baseball trade analyzer
• MLB Props finder tool
• Fantasy baseball closer depth charts

No. 10: Jett Williams, New York Mets

Age in 2029 (Around Opening Day): 25.39

So the Mets trading for Marcus Semien might throw a little bit of a wrench into this ranking, as I thought Jett Williams might be their second baseman of the future, but could this mean he's viewed as trade bait for them to acquire a starting pitcher?

Wherever Williams gets his shot in the majors, I expect him to be an impact bat. He is coming off a really strong season in the high minors as a 21-year-old. He had a 136 WRC+ between Double-A and Triple-A with 17 HRs and 34 SBs. He also had a 22.9% K rate and 13.3% BB rate.

His production did drop off a bit when getting the bump to Triple-A. I wonder if this is a thing for Mets hitters making that transition, as Carson Benge, another top Mets prospect I'm a bit of a fan of, also struggled in his first taste of Triple-A. Regardless, the fantasy upside for Williams is incredibly strong. He should provide solid power, average, and excellent speed when he gets the call to the majors.

No. 9: Ketel Marte, Arizona Diamondbacks

Age in 2029: 35.45

The oldest player on this list and one of the oldest that will be ranked in this series, but it's hard to ignore how good Ketel Marte has been the last couple of seasons, especially at such a weak position for fantasy.

Despite missing time with injury, Marte has entered his 30s with two of his three best seasons of his career. In 2024, he had a career best 152 WRC+ and 36 HRs. He followed that up in 2025 with a 145 WRC+ and 28 HRs.

He's put up robust power numbers without selling out. He's maintained an elite approach at the plate throughout his career, and that should help him keep up his production as he enters his mid-30s. He's never struck out over 20% of the time in his entire career and has walked at least 10% of the time each of the last three seasons.

Ketel Marte's bat speed as LHH
* 72.7 MPH avg
* 60th out of 196 hitters

Ketel Marte's bat speed as RHH
* 78.5 MPH avg
* 3rd out of 282 hitters

Insane pop from the right side. Higher average bat speed than Judge or Vladdy. Only Caminero and Stanton swung faster in 2025.

— Foolish Baseball (@FoolishBB) November 26, 2025

No. 8: Bo Bichette, Toronto Blue Jays

Age in 2029: 31.06

Was the World Series a look into Bo Bichette's future? Bichette was coming back from a knee injury that limited his mobility a bit, and he played second base in the World Series while Andres Gimenez played short.

I'm sure Bichette's agent doesn't want me talking about his potential future home being at second base, as he'll likely be paid more by whatever team signs him in free agency if they view him as a shortstop, but there's no sugar coating it- he's not a good one. Bichette had the worst fielding run value and outs above average amongst all shortstops in the league in 2025.

Wherever Bichette plays next season and beyond, his bat will remain very strong. Bichette was once viewed as a borderline top-10 dynasty asset after his 29 HR/25 SB season in 2021. He'll never reach those heights again due to not running much anymore, but the bat is just as good as it has ever been.

Following a down 2024 season in which he battled injuries, Bichette posted a career-best .311 BA and 134 WRC+ in 2025. He also had a career-best 14.5% K rate. Bichette is one of the best combinations of power and batting average in the league and should continue to do so for years to come.

No. 7: Jacob Wilson, Athletics

Age in 2029: 26.99

I think Jacob Wilson is one of the most disrespected players in fantasy. As he was making his debut this past season, a lot of people in the fantasy community assumed, "He's just Luis Arraez", and that "He'll never have much upside."

Wilson has the elite bat-to-ball skills that Arraez has, which led him to a .311 BA and a minuscule 7.5% strikeout rate. However, he hit 13 HRs in his rookie season, more than Arraez ever had in a season, despite playing only 125 games.

Even if he doesn't have much more ceiling, a .300 hitter with mid-teens HRs is a solid fantasy asset. He will likely have more people excited about him as their second baseman rather than their shortstop. After the Athletics made the blockbuster trade last offseason to acquire Leodalis De Vries, I expect him to be their shortstop of the future, with Wilson moving over to second when De Vries is ready.

No. 6: Luis Peña, Milwaukee Brewers

Age in 2029: 23.20

I think I was the number one driver of the Luis Peña bandwagon at the beginning of this season. He was one of the best hitters out of the DSL last season. He had a 173 WRC+ with as many walks as strikeouts to go along with 39 SBs in 44 games.

However, going into the spring, his organizational mate, Jesus Made, was the guy getting all the buzz in Milwaukee's Low-A affiliate in Carolina. When they both came stateside, Peña was looking just as good, if not better than Made, to start the season. He had a 139 WRC+ with six HRs and 41 SBs in 309 PAs at Low-A.

He also showed excellent plate skills with a 13.3% K rate and 9.1% BB rate. However, the most impressive aspect of his game is the additional power he displayed.

Luis Peña has increased his 90th percentile exit velocity by nearly 5 mph this year 😳

The gains helped the @BrewersPD prospect transform into the one of the most impressive teenage hitters in the minors. https://t.co/OwIqD4HAU5 pic.twitter.com/dPDXqeUoiT

— Baseball America (@BaseballAmerica) August 26, 2025

He did this all as a young 18-year-old. He and Made got the bump to High-A together, where Made really went off, while Peña unfortunately struggled. He only had a 42 WRC+, and his strikeout rate jumped to 24.8%. He was so young for the level and posted a .194 BABIP, so I am not too deterred by his performance, but you always want top prospects to dominate at every level of the minors.

Peña has played a lot of shortstop so far in his minor league career, but I think at this point, Made will be the Brewers' shortstop and Peña will be their second baseman, creating one of the most exciting young middle infield tandems in the league.

No. 5: Jackson Holliday, Baltimore Orioles

Age in 2029: 25.31

I feel like there's a wide range of opinions in the fantasy community about Jackson Holliday. Some people still see him as the former top overall prospect. There are people who no longer view him as an elite asset after his mediocre first couple of seasons. His reality is probably somewhere in the middle.

He's probably not going to become a superstar like we were hoping for a couple of years ago. However, I think he has the makings of a solid contributor at second base going forward. In 2025, at only 21 years old, Holliday had 17 HRs and 17 SBs to go with a 96 WRC+. Another big positive development for him was that he cut his strikeout rate to 21.6%, which was more in line with what he did in the minors after striking out 33.2% of the time in his rookie season.

Holliday has not hit the ball particularly hard in the majors so far, but I think he can grow into more power as he reaches his peak years. When that happens, we can expect some 20 HR-25 SB seasons to go along with a decent batting average.

No. 4: Brice Turang, Milwaukee Brewers

Age in 2029: 29.34

If you told me Brice Turang became a top fantasy second baseman in 2025, I might've believed it. If you told me he did it with only 24 SBs, I might not have believed it. In 2024, Turang stole 50 bases but did not do much else at the plate. He had an 88 WRC+ with just seven HRs.

However, Turang became a really good hitter in 2025. He had a 124 WRC+ with 18 HRs to go along with his 24 SBs. His underlying metrics aren't incredible, but they were a vast improvement across the board compared to his extremely blue 2024 Savant page.

With the improved quality of contact metrics in 2025 leading to better hitting stats, it's hard not to believe in Turang going forward. If he can start stealing more bases again, as he did in 2024, he could become an elite fantasy option.

In my positional projection, I have Peña playing second for Milwaukee, as the Brewers' refusal to pay big money for their players will have Turang playing elsewhere by 2029. However, wherever he plays, he should provide quality production.

No. 3: Luke Keaschall, Minnesota Twins

Age in 2029: 26.61

Luke Keaschall is one of the best dynasty players to make their MLB debut this season, and I feel like he can still be had for a reasonable price because he did what all Twins top prospects do- get injured. Keaschall had a 134 WRC+ this year in the majors, which was third among all qualified rookies, only behind Nick Kurtz and Roman Anthony.

He also hit .302 with four HRs and 14 SBs in 49 games.

Keaschall's top fantasy skill set is his elite hit tool. He's never struck out over 20% of the time in any season, and he walked at least 12% of the time in each of his minor league seasons (he only walked 9.2% of the time in the majors in 2025).

He should also provide good speed. Although he's never stolen more than 23 bases in a minor league season, his 2025 major league pace, along with his 85th percentile sprint speed, should have him stealing 25-30 bases a season in due time.

The one aspect of Keaschall's game that will determine his overall fantasy ceiling is his power. His peak in a minor league season is 15 home runs, and he doesn't have a particularly impressive quality of contact metrics. I think he'll probably hit 15-20 a season at peak, which should be very solid given his average and speed profile.

Luke Keaschall finished a triple shy of the cycle, including this walk-off home run.

Just a phenomenal start to his Major League career.

Dynasty stock 📈📈📈#MNTwinspic.twitter.com/Njz4qRIkLl

— Eric Cross (@EricCrossMLB) August 10, 2025

No. 2: CJ Abrams, Washington Nationals

Age in 2029: 28.48

Another bold position change prediction? Like Bichette, CJ Abrams is a really bad defensive shortstop. He had the second-worst fielding run value and third-worst outs above average among all MLB shortstops in 2025. Where he plays in the future might depend on whether he stays in Washington or not, but I expect number one overall pick Eli Willits to be the shortstop at Washington by this point.

Abrams is not the best hitter on this list, as he has only had seasons of 106 and 107 WRC+, respectively, but he has a really strong power-speed blend that should continue to make him great for our fantasy teams. He had a breakout season in 2023 with 18 HRs and 47 SBs. He has followed that up in 2024 and 2025 with 20/31 and 19/31 seasons. I do wonder if there is some meat on the bone in the average department for Abrams, though.

There is some credence to saying that Abrams is what he is in the BABIP department, as he's never been above .300 for his career, but I feel like a player with his speed and who strikes out above 20% of the time won't always hover around the .250 mark for BA.

If Abrams can bump up his batting average a bit to go along with his power and speed, he has as much upside as any player on this list.

No. 1: Jazz Chisholm, New York Yankees

Age in 2029: 31.15

Since Jazz Chisholm got traded to the Yankees, he's been absolutely absurd for fantasy. In 176 games between 2024 and 2025, he has 42 HRs and 49 SBs.

Chisholm has always had tantalizing upside, but he's really taken his game to the next level in the Bronx. A look at his spray chart shows he's taking full advantage of playing half of his games with the short porch at Yankee Stadium.

I do have some concerns about Chisholm's swing-and-miss rate as he ages. He struck out 27.9% of the time, but that came with a career-high 10.9% BB rate. If Chisholm can stay healthy and remain with the Yankees long term, no one has more upside at this position.

Honorable Mentions

• Travis Bazzana, CLE
• Ozzie Albies, ATL
• Michael Arroyo, SEA
• Lenyn Sosa, CWS
• Nico Hoerner, CHC

Second Basemen I'm Projecting At Another Position

• Kevin McGonigle, DET (SS)
• Kristian Campbell, BOS (OF)
• Jordan Westburg, BAL (3B)

LIKE ROTOBALLER?

CLICK HERE, ENTER ROTOBALLER.COM, THEN CHECK THE BOX

More Fantasy Baseball Advice