Fantasy baseball dynasty rankings: Top 300 players for 2021 and beyond

Wander Franco is the top prospect in baseball and among the top players to build around in fantasy baseball dynasty leagues. Michael Reaves/Getty Images

Welcome to the preseason edition of my triannual Dynasty 300 rankings! These can help fantasy baseball managers with decisions about key prospects, or simply to weigh the trade value of players in long-term formats. Consider it an effective "price guide" for both dynasty and keeper leagues. For those of you holding drafts, we have PDF versions of these rankings available to download below.

The rankings formula

The Dynasty 300 uses the following player valuation formula:

  • 2021 performance: 20%.

  • 2022 performance: 20%.

  • 2023 performance: 20%.

  • 2024 performance: 20%.

  • 2025 performance and beyond: 20%.

The rationale behind these weights is to provide a long-term projection of player values, in order to help fantasy managers in dynasty/keeper leagues either drafting fresh, weighing trades or making keeper decisions. For those in re-draft/single-year leagues, my rankings for 2021 alone can be found here: Tristan's Top 300. This page, however, is for fantasy managers who need to forecast deep into the future.

Other factors influence these values, beyond simply your league's scoring system. Here are some of the other things to consider:

  • Number of keepers: How many players can you keep each year, and must every team keep the same number?

  • Player pricing: Is your league a draft or salary-cap format, and do you price players by draft round, for a dollar amount, or is price not part of the keeper equation?

  • Contract factors: Are there limits on the number of years you can keep a player and/or are there guaranteed contracts, and is there price inflation?

  • Farm teams: Does your league include minor league/farm team slots and how are these players factored into the keeper system?

  • Team competitiveness: Are you a contender, rebuilder or something in between?

Dynasty 300

Note: "Elig. Pos." is the player's eligible position(s) in an ESPN league entering 2021. Position eligibility is determined based upon a minimum of 10 games, otherwise the position the player appeared at most, in 2020. Players' projected future positions -- 2022 and beyond -- are considered in the ranking. Players' listed ages are as of Opening Day, scheduled for April 1, 2021.

Players' peak rankings in past keeper lists ("Prv. Peak") are also provided: These lists have been published semiannually since 2010 and triannually since 2014, with preseason ("Pre-"), midseason ("Mid") and end-of-season ("End") designated to differentiate the times of the years in question. For example, Yu Darvish is listed with a peak of 18 in "Pre 14," meaning that his best all-time rank was 18th, in the 2014 preseason list. A "--" means that the player has never before made the cut.