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At RotoBaller HQ, we are back with more fantasy baseball rankings. After publishing pitchers and catchers, we shift our focus to the infield and start with our MLB team's 2025 fantasy baseball first base rankings and tiers for 5x5 mixed roto leagues. The position in 2025 has some star power with Vladimir Guerrero Jr., Bryce Harper, and Freddie Freeman, but the talent pool can quickly go downhill after the first few tiers of first basemen are off the draft board. So who are the other names to know?
Pete Alonso, who smashed 34 homers last year and 157 long balls combined in the previous four seasons, is still a free agent and in the top five of our initial first base ranks. Even in a down year, Matt Olson still crushed 29 home runs after hitting 54 in 2023. Christian Walker is now in Houston after averaging 31 homers per season from 2022-2024. Fantasy managers are waiting for Boston Red Sox slugger Triston Casas to stay healthy and finally break out in 2025. All the tools are there for Casas to take the next step, but injuries limited him to 63 games last season.
The first base rankings below are specifically designed for traditional 5x5 Roto Mixed Leagues (click here for points leagues, dynasty leagues, and prospect rankings). We also have many other tools and resources to help you win in 2025. We've worked hard to keep track of all off-season moves to get you covered for your fantasy baseball drafts with our 2025 Fantasy Baseball Draft Kit. It includes various fantasy baseball tools and exclusive articles/projections for different formats.
Be sure to check all of our fantasy baseball draft tools and resources:- Fantasy baseball draft kit
- Fantasy baseball rankings
- Team Sync platform and Draft Assistant
- Fantasy baseball mock draft simulator
- Fantasy baseball draft cheat sheets
- Fantasy baseball closer depth charts
- Fantasy baseball prospects
Fantasy Baseball First Base News and Injuries
- Jesse Winker Could See Time At First Base
- Pete Alonso In Deep Talks With The Blue Jays
- Donovan Solano Expected To Primarily Play First Base
- Mets Planning To Shift Mark Vientos To First Base
- MLB Pipeline Names Jac Caglianone As The Top First Base Prospect Heading Into 2025
- Blue Jays Have No Intention Of Trading Vladimir Guerrero Jr.
- Rockies Agree To Minor-League Deal With Keston Hiura
- Yandy Diaz Not Expected To Be Traded
- Josh Naylor, Diamondbacks Avoid Arbitration
- Luis Arraez, Padres Settle On $14 Million Deal
2025 Fantasy Baseball First Base Rankings (January Update)
Rankings are provided by Nick Mariano. They are for 5x5 category mixed roto leagues and will be updated regularly on our main fantasy baseball rankings dashboard through Opening Day. Download our free mobile app with push notification alerts and stay on top of all the MLB news and analysis.
| Rank | Tier | Player | Position |
| 1 | 1 | Vladimir Guerrero Jr. | 1B/3B |
| 2 | 1 | Bryce Harper | 1B |
| 3 | 2 | Freddie Freeman | 1B |
| 4 | 2 | Matt Olson | 1B |
| 5 | 3 | Pete Alonso | 1B |
| 6 | 4 | Yainer Diaz | C/1B |
| 7 | 4 | Cody Bellinger | 1B/OF |
| 8 | 4 | Josh Naylor | 1B |
| 9 | 4 | Salvador Perez | C/1B |
| 10 | 4 | Christian Walker | 1B |
| 11 | 4 | Triston Casas | 1B |
| 12 | 5 | Jake Burger | 1B/3B |
| 13 | 5 | Spencer Steer | 1B/2B/OF |
| 14 | 5 | Vinnie Pasquantino | 1B |
| 15 | 5 | Michael Toglia | 1B/OF |
| 16 | 5 | Isaac Paredes | 1B/3B |
| 17 | 5 | Alec Bohm | 1B/3B |
| 18 | 5 | Paul Goldschmidt | 1B |
| 19 | 5 | Luis Arraez | 1B/2B |
| 20 | 5 | Yandy Diaz | 1B |
| 21 | 6 | Ryan Mountcastle | 1B |
| 22 | 6 | Alec Burleson | 1B/OF |
| 23 | 6 | Christian Encarnacion-Strand | 1B |
| 24 | 6 | Nolan Jones | 1B/OF |
| 25 | 6 | Brandon Lowe | 1B/2B |
| 26 | 6 | Michael Busch | 1B |
| 27 | 6 | Nathaniel Lowe | 1B |
| 28 | 7 | Connor Wong | C/1B |
| 29 | 7 | Nolan Schanuel | 1B |
| 30 | 7 | Andrew Vaughn | 1B |
| 31 | 7 | Jake Cronenworth | 1B/2B |
| 32 | 7 | Jeimer Candelario | 1B/3B |
| 33 | 7 | Tyler Soderstrom | C/1B |
| 34 | 7 | Spencer Horwitz | 1B/2B |
| 35 | 8 | Rhys Hoskins | 1B |
| 36 | 8 | Luke Raley | 1B/OF |
| 37 | 8 | Kyle Manzardo | 1B |
| 38 | 8 | Hunter Goodman | 1B/OF |
| 39 | 8 | Carlos Santana | 1B |
| 40 | 8 | Deyvison De Los Santos | 3B/1B |
| 41 | 8 | Josh Bell | 1B |
| 42 | 8 | Spencer Torkelson | 1B |
| 43 | 8 | Jonathan Aranda | 1B/2B/3B |
| 44 | 8 | Jhonkensy Noel | 1B/3B/OF |
| 45 | 8 | Ryan O'Hearn | 1B/OF |
| 46 | 8 | Dylan Moore | 1B/2B/3B/SS/OF |
| 47 | 8 | Pavin Smith | 1B/OF |
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