Focusing on baseball, below's a list of batting Triple Crown winners (leading their league in batting average, home runs, and runs batted in).
*= tied for league lead
Note that the batting Triple Crown went 45 years (1967-2012) without a winner.
The term Triple Crown is less frequently used in baseball for pitchers who top the league in ERA, wins, and strikeouts in the same season. The feat has been accomplished 38 times (39 if you count the 19th century American Association, which was a major league at the time).
* 2020 season was shortened due to the COVID-19 pandemic, hence the low final stats for Bieber's win.
Thanks to AllergicToEverything for correcting my spelling on Jimmie Foxx (not "Jimmy")