Who had the worst start has a pro boxer but won a LEGIT Championship??

[CutMeMick]

This is something I've actually done research on...
Here are some of the ones that stand out most to me.

Alexis Arguello suffered 2 loses back to back early in his career was 3-2.
Benny Lynch started off 6-4-2
Ike Williams started off 10-4-2
Hopkins lost in his debut.
Ted Lewis lost his debut.
Both Marquez brothers lost in their debuts.
Humberto Soto started off 13-4-2
Margacheato started off 9-3.
Jhonny Gonzalez started off 0-2 then went 14-4.
Edgar Sosa started off 12-5
Tomas Rojas at one point went 5-6 then shortly after went 6-6.
Flash Elorder at one point went 11-8.
Mike Weaver started off 6-6