Top-10 Dynasty Baseball First Basemen for 2025: Vladimir Guerrero, Pete Alonso, Josh Naylor, Triston Casas, Bryce Eldridge and More

It’s time to continue my dynasty baseball series where I rank the top players going into 2025.

We have covered second basemen, shortstops, catchers, starting pitchers and outfielders so far, and will now be discussing first basemen.

Here are the links to the top-10 redraft rankings for 2025: third basemen, first basemen, closers, designated hitters, second basemen, shortstops, outfielders, catchers and starting pitchers.

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1. Vladimir Guerrero Jr.

Guerrero is my top fantasy first basemen for 2025, and also is the top dynasty option at the position right now. He’s just 25 years old and still appears to have several elite seasons in his bat.

The thing I like most about Guerrero is that he’s on the field just about every day. He’s played in at least 156 games in each of the past four seasons.

In 159 games last season, he had a .323 average and .396 on-base percentage. His career marks of .288 (average) and .363 (OBP) are still very good. Vladdy also had 30 home runs, 103 RBIs and 98 runs scored last season.

The only real tool he lacks is speed, but he’s a great fantasy player regardless. He’s going to be one of the top fantasy hitters for a long time, whether that be with Toronto or another organization. Guerrero is a dynasty player to build around.

2. Bryce Harper

Harper is on the back nine of his career, but is still just 32 years old, so he’s got a few good seasons in him yet probably.

He’s not been as durable as Guerrero, but he eased some concerns last season when he played 145 games. Harper had a .285 average and .373 OBP last year, along with 30 home runs, 87 RBIs, seven stolen bases and 85 runs scored.

Harper has posted even bigger seasons, and I think he’s still got a couple big fantasy seasons ahead of him. His age is going to scare off a lot of dynasty owners, but if you are contending, Harper can absolutely be a useful fantasy asset to you - if you are rebuilding, trade Harper now before his value tapers off.

3. Pete Alonso

Alonso is still looking for a home, but his power should translate pretty well across the league. He’s 30 years old.

He played in all 162 games last year, hitting. 240 and getting on base at a .329 clip. Alonso hit 34 home runs and drove in 88 runs, while also scoring 91 times. Those numbers are considered a down season for him, and he was still a very good fantasy asset.

I expect Alonso to continue to mash for several more seasons. His average might not be the best, but a bunch of homers and RBIs, along with a good OBP, will keep him as one of the top fantasy first basemen in the game. He’s another player to probably only roster if you are contending.

4. Matt Olson

Olson is coming off a down season, but is still 30, so he’s got time to not only get back on track, but still be a good asset for a few more seasons.

Olson played 162 games last season, marking the third straight season in which he played in every game. Olson had a .247 average and .333 OBP, which were actually pretty close to his career marks (.254 average and .349 OBP). After hitting 54 home runs and driving in 139 runs in 2023, Olson had just 29 homers and 98 RBIs last season.

Olson’s fantasy stock is down going into 2025, but he’ll still be a useful asset for those of you contending. I’d advise the rebuilding dynasty owners to wait to trade Olson, doing so after he hopefully starts this season hot. If you don’t think Olson is going to bounce back, then trading him now is the best move.

5. Freddie Freeman

Freeman is 35 years old, so he’s the oldest player on the list so far (and will be the oldest one mentioned), but he’s still producing at a high level, so he deserves a high ranking still.

In 147 games last season, Freeman had a .282 average and .378 OBP. Those numbers are actually down a bit off his career marks, but still make him an elite fantasy option. Freeman had 22 home runs and 89 RBIs, along with nine stolen bases and 81 runs scored.

I think Freeman could play for a few more seasons still, and while his numbers might taper off a bit as he ages, he’s still producing at a level that will make him a top-end fantasy 1B. Roster and utilize him on contending teams until he decides to hang it up.

6. Josh Naylor

Naylor found a new home this offseason after a trade to the Diamondbacks. He’s 27 years old.

Naylor played in 152 games last season. He hit just .243, but got on base at a .320 clip and popped 31 homers and drove in 108 runs. Naylor stole six bases and scored 84 runs.

I like his fantasy outlook more in Arizona, but he could end up spending just one season there. I think he could be a good fantasy 1B for the next few seasons at least, and if he continues to hit homers, Naylor could be around for several seasons yet.

7. Triston Casas

Casas might rank a lot higher on this list if he’d been able to put in a full season during his three-year career. He’s just 25 years old.

He only played 63 games last season. For his career, Casas has a .250 average and .357 OBP. He has 42 home runs and 109 RBIs over 222 games. Casas’ 162-game averages are elite at: 31 home runs, 80 RBIs and 77 runs.

He simply needs to get on the field, and stay there, to shoot way up the dynasty rankings. His lack of a full season yet probably means he’s a bit more affordable (in a startup draft or in a trade) before this season, so this might be your best chance to invest in him.

8. Bryce Eldridge

Eldridge is the first, and only, first base prospect to appear in my top 10. He’s just 20 years old and is expected to debut in 2026, even though I think he could appear in a 2025 game.

He was the 16th pick in the 2023 draft and is imposing at six-foot-7 and 223 pounds. Eldridge has a career .292 average and .379 OBP across 147 minor league games. He has 29 homers, 110 RBIs, seven stolen bases and 91 runs scored, with 79 walks and 166 strikeouts.

He mostly played at High-A last season, but did get in nine games at Double-A and eight contests at Triple-A. If he continues to rake wherever he starts the 2025 season, I think a mid-to-late season callup is definitely a possibility.

9. Colt Keith 

Keith played second base last season, but is expected to transition to first this season. He’s a former top-end prospect and is just 23 years old.

He showed flashes of greatness in his first season. Across 148 games, Keith had a .260 average and .309 OBP, with 13 homers, 61 RBIs, seven stolen bases and 54 runs scored.

I think Keith could skyrocket up my rankings by the end of the season, but after just one season, I couldn’t put him over anyone in my top eight. If he unlocks his power in 2025, look out.

10. Vinnie Pasquantino

Pasquantino is an interesting dynasty player. He’s played in just 264 games, but is also 27 years old already.

He eased some concerns about his durability by getting in 131 games last season. Pasquantino had a .262 average, 315 OBP, 19 home runs, 97 RBIs and 64 runs scored.

He should continue to hit in the heart of orders for the next few seasons, and if he can add a bit more pop, Pasquantino has the chance to be a top-end fantasy 1B for several seasons. Durability and his age are what hold him back a bit in my book.

Honorable Mentions

There were several first basemen I considered for the top 10. Some major league talents that are close to top-10 spots are: Christian Walker, Luis Arraez and Nolan Schanuel.

Nick Kurtz, Jac Caglianone, Xavier Isaac, Tre' Morgan, Josue Briceno, C.J. Kayfus and Tyler Locklear are some of the top prospects at first base and are among the group of guys to keep an eye on.