He was often arrested as a youth for petty crimes
and eventually he was sent to Tryon School in upstate New York where he was taught to box by Bobby Stewart.Tyson made his debut in the professional ring on March 6, 1985 in Albany, New York. He won the fight in a single round. He had a further fifteen fights in 1985 winning them all by knock-out, and almost all in the first round. He fought twelve times in 1986, cutting a dangerous path through improving ranks of journeyman fighters and already attracting attention and courting media controversy (v. Jesse Ferguson). On November 22, 1986 Tyson was given his first title shot, fighting Trevor Berbick for the WBC heavyweight title it took Tyson two rounds to become the youngest heavyweight champion ever.
His only other fight in 1987 was in October against the 1984 Olympic champion Tyrell Biggs, it was an workmanlike performance from Tyson ending with a seventh round TKO.
Tyson had three fights in 1988. On June 27 he produced a good performance against Michael Spinks, Spinks lasted fractionally over 90 seconds before his KO. But Tyson's problems outside boxing were starting to gain prominence too, his marriage to Robin Givens was heading for divorce, and his future contract was being clawed over by Don King and Bill Cayton.
By 1990 Tyson had lost direction, his personal life was in disarray and he was not training well. In a fight on February 11 with the little regarded James 'Buster' Douglas he lost to a tenth round KO and despite the protests of his manager over a 'slow count' in the eighth round Tyson lost all his belts to Douglas. Tyson's two other fights in 1990 were confidence regaining first round KOs.
Tyson went on trial in Indiana charged with the rape of a 1991 Miss Black America Contest contestant named Desiree Washington on January 27, 1992 Tyson was found guilty of the rape on February 10 and imprisoned for 3 years. (Under Indiana law, a defendant convicted of a felony must begin serving his prison sentence immedately after the sentence is imposed) As a result, Tyson did not fight again until 1995.
In March 1996 Tyson regained one belt, winning the WBC title from a lumbering Frank Bruno in three rounds. In September Tyson won back the WBA in 93 seconds from Bruce Seldon, having paid Lennox Lewis $4 million dollars to 'step-aside'. On November 9 however he faced a tougher challenge in Evander Holyfield, fighting over eleven rounds Holyfield won with a TKO to become a three-times world champion.
On February 5 Tyson was sentenced to a year's imprisonment, fined $5,000, and ordered to serve 2 years probation and perform 200 hours of community service for the August 31, 1998 assault on two people after a car accident.
In August 2003, after years of financial struggles, Tyson finally filed for bankruptcy. His bank account has been said to have a total of only 5,000 dollars. Amid all his economic troubles, he was named by Ring Magazine at number 16 among all time best hitters in boxing history in 2003
Tyson's record stands at 50 wins, 5 losses and 2 no contests, with 44 knockout wins.