Jack Sharkey's reigns
Welcome to champgraph
One champion, every reign
champgraph draws boxing's world champions as one graph per division; this page follows a single one of them. Here is every world title Jack Sharkey won, defended and lost, at heavyweight, from today at the top back to 1932. Open any plate or stud to dig into the fights, records and title reigns behind it.
- plates are title wins
- studs are defences
- dotted means vacant or stripped