Buster Douglas net worth: Buster Douglas is a retired American boxer who has a net worth of $10 million. James "Buster" Douglas was born in Columbus, Ohio. He is a former undisputed world heavyweight boxing champion. Buster Douglas began building his net worth in the early 1980s on the professional boxing circuit. Some of his early fights were with boxers Randall "Tex" Cobb and Greg Page. Buster he is probably most well known for his surprising win over Mike Tyson in 1990. In 1990, Buster was the second highest paid athlete in the world, taking home $26 million. The highest paid athlete that year was Mike Tyson with $28.6 million in earnings.