Largest MLB Contracts in History: Top 25 Ranked

Juan Soto’s $765 million contract with the Mets is the largest deal in the history of professional sports. Not just MLB — all pro sports. The 15-year deal Soto signed in December 2024 surpassed Shohei Ohtani’s record-setting $700 million deal from just one year earlier, and capped a five-year stretch where the ceiling for elite player contracts has effectively doubled. Eleven years ago, the largest active contract in baseball was Alex Rodriguez’s $275 million extension. Today, that same money wouldn’t crack the top 15. Here’s the complete ranking of the largest MLB contracts in history, plus the highest annual values, the riskiest deals, and the context behind why salaries have exploded so rapidly.

Why MLB contracts have exploded

Three forces have pushed the ceiling on MLB contracts up faster than at any point in baseball history. First, league revenues have grown dramatically — MLB’s annual revenue passed $12 billion in 2024, with new media rights deals (ESPN, Apple, MLB Network, regional sports networks transitioning to streaming) driving most of the increase. Player salaries follow revenue. Second, the 2022 collective bargaining agreement raised the luxury tax thresholds and adjusted draft pick compensation rules, both of which made big-market teams more willing to spend on free agents. Third, the era of generational young free agents (Soto at 26, Ohtani at 29, Guerrero Jr. at 26) has created bidding wars where teams are essentially buying decades of prime production.

The Ohtani deal deserves separate mention because of how it was structured. Ohtani’s $700 million is the nominal value — but 97% of that money is deferred until 2034-2043, after his contract ends. Adjusted for the time value of money and inflation, the MLB Players Association calculated the present-day value of Ohtani’s deal at roughly $460 million. That’s still massive, but it’s not actually the second-largest contract anymore. Vladimir Guerrero Jr.’s $500 million extension with the Blue Jays in 2025 is technically the second-largest contract in true present-day dollars, even though it’s listed third by nominal value.

The deferral structure was a creative solution that benefited both sides. The Dodgers got cap relief for the duration of Ohtani’s playing contract (allowing them to spend on Yamamoto, Tucker, and others). Ohtani got the headline number he wanted plus the chance to win immediately on a stacked roster. He won the World Series in his first year with the team, validating the entire structure. Expect more deferral-heavy deals in future free agent classes — it’s now an established tool that teams and elite agents both understand.

For continuously updated salary data on every active MLB contract including deferrals, opt-outs, and trade clauses, Spotrac’s MLB Rankings page is the most comprehensive public source. They track payrolls, AAV, and provide team-by-team salary breakdowns that update with every signing. MLB Trade Rumors is the standard for breaking contract news and analysis, with their salary contracts database covering every guarantee back to the early 2000s.

One last thing worth noting: of the 25 largest contracts in MLB history, all but one were signed in 2019 or later. Baseball’s contract economics are fundamentally different than they were even a decade ago. Whoever the next $800 million player is — and there will be one — they’re probably already in the league.

— Drew, Legion Report