Kansas City Chiefs quarterback Patrick Mahomes has made history by signing the NFL's first guaranteed $500 million contract. This landmark deal extends his contract by two years through to 2033, totaling $504.75 million.

The entire amount is guaranteed due to specific contract clauses, with the 30-year-old Mahomes able to earn up to $522.25 million through performance incentives. This extension, which kicks in in 2027, is valued at $64 million per year, making it the highest average salary in NFL history and the biggest contract across all sports.

Key highlights of Mahomes' career include:

• Three-time Super Bowl winner
• 95-31 career record
• 17-4 playoff record
• Highest passing yards in NFL history at 285.2 yards per game
• Two-time NFL MVP

Despite this monumental achievement, the Chiefs faced challenges during the 2025 season, marking their first losing record under Mahomes at 6-8. The season ended prematurely for him due to an ACL injury in December, causing him to miss the final three games, all of which resulted in losses.

This contract extension represents a strong vote of confidence in Mahomes, who now holds over $170 million more in guaranteed money than his closest rival, Josh Allen of the Buffalo Bills, who has a $330 million contract. As Mahomes aims to secure a third Super Bowl victory in eight seasons as a starter, this deal further cements his legacy as the most successful player in the franchise's history.