Ohtani contract: 10 years, $700 million
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The first year in MLB baseball history for which there’s comprehensive salary data featured an average salary of $19,000. Converted to 2023 dollars, this $175,000. This means that a single year of Ohtani’s contract is worth approximately 70%, in real inflation-adjusted dollars, of the entire major league payroll in 1967.
1967 was also the first season in which major league players had a certified union.