Conversation so far:
Where was Muhammad Ali born?
Cassius Marcellus Clay Jr. was born on January 17, 1942 in Louisville, Kentucky.
Was Muhammad Ali active in his early childhood?
How was Muhammad Ali influenced to start boxing?
Muhammad Ali was first directed toward boxing by boxing coach Joe E. Martin, who encountered the 12-year-old fuming over a thief's having taken his bicycle.
Was Muhammad Ali arrested?
Muhammad Ali was arrested, found guilty of draft evasion, and stripped of his boxing titles.
Has Muhammad Ali won any fights during his amateur career?
Muhammad Ali's amateur record was 100 wins.

Question: Did he lose any fights?
Self-contained rewrite: Did Muhammad Ali lose any fights?