Some questions

Has a world boxing champion ever ended their career with more defeats than victories?
Juan Polo Perez who was an IBF Super Flyweight champion ended his career with a record of </SPAN>
Won 46 (KO 23) + lost 46 (KO 18) + drawn 4 almost losing more than he won.

Has any boxer started their career with more consecutive bouts ending in stoppages than John Mugabi? He engaged in 42 consecutive bouts that ended inside the distance.

LaMar Clark had 44 or 45 consecutive fights end within the distance. But consitently fought no bodies until his last fight against Ali.

Rey Migrino won an International world title with a record of 16-20 or something like that. He is now 20-20-3. I dont think anyone has won a regular world title with a losing record.

Braddock won 46 and lost 24
Leon Spinks won 26 and lost 17
Mamby won 45 and lost 34
Baas won 35 and lost 21
Melchor won 38 and lost 35

There are others. Zivic has the record for a champ with 65 loses.