The hidden Super Bowl record Patrick Mahomes broke in Arizona

When the Kansas City Chiefs won 2022's NFL championship with a 38-35 victory over the Philadelphia Eagles three weeks ago, quarterback Patrick Mahomes shattered two longstanding Super Bowl records.

Mahomes became the first quarterback to lead the league in passing yards and win the Super Bowl in the same year.

But he also set a new record for the largest salary-cap percentage used for a Super Bowl-winning quarterback. According to the salary-cap site Spotrac, Mahomes' 2022 cap hit was 17.2%. That figure exceeded the previous record of 13.