Tillis began his professional boxing career in 1978, with a first-round knockout of Ron Stephany. He won his first 20 fights with 16 knockouts. One of his most impressive early victories was a seventh-round knockout of
Ron Stander in 1980. Stander had once challenged
Joe Frazier for the world title and was regarded as one of boxing's most durable fighters. Other notable wins included a knockout of the South American champion Domingo D'Elia, and a points win over the sometimes dangerous fringe contender Mike Koranicki. His co-managers were Beau Williford and Gary Bentley. • Fought out of the squared-up stance, instead of the closed sideway stance. • Sometimes fought with both hands down. • Switched to southpaw and back to orthodox. • Lead with his right hand. • "Left-hooked with a hooker." • Got tangled in wild exchanges. Culminative moment of the fight came at 2:45 of the fourth round, when Tillis charged at Tyson with a leaping left hook, missed, and went off-balanced while pivoting on his left foot. Tyson slipped the punch and promptly switched to orthodox, throwing a leaping left hook of his own that landed right to the Tillis' chin, Tillis went down immediately. Tillis got up quickly at the count of "Two." That was the only knockdown during the entire fight, it cost Tillis a point, and subsequently a round on all the three judges' scorecards, and eventually the fight, which otherwise would have been ended a draw. Initially, the crowd was rooting for Tyson, but in the later rounds it turned somewhat against Tyson due to him being unable to knock Tillis out, and after the ring announcer Paul LeFlore announced the judges' decision, pronouncing Tyson as the winner by a unanimous decision, the crowd booed wildly when referee
Joe Cortez raised Tyson's hand. Being interviewed by the
ABC Sports staff, Tyson himself said he just "fought a guy who was up for this fight, in the greatest shape in his life." The new Tillis was short-lived, however, as he traveled to Australia and lost a decision to veteran
Joe Bugner. In 1987, he was upset in eight rounds, as underdog (and regular Tyson sparring partner)
Michael Williams came off the floor to stop Tillis. Later in the same year, he was stopped in five rounds on cuts by future champ
Frank Bruno in London, and then knocked out in 10 rounds by hard-hitting
Johnny DuPlooy in South Africa. Having failed to secure a rematch with Tyson in 1988, this time for the
undisputed heavyweight championship, he made one last attempt at the big time. Tillis was brought in to fight reigning
cruiserweight world champion
Evander Holyfield, who was making a high-profile move into the heavyweight ranks. Holyfield outpunched Tillis in five one-sided rounds. Tillis resurfaced in 1991. However, his days even as a
journeyman appeared over, as hard-hitting (and future
WBO World Champion)
Tommy Morrison stopped him in the first round.
Semi-retirement Tillis fought on and off until 2001. Although he still was able to outpoint former top-flight amateur
Craig Payne, a 39-year-old Tillis was stopped in six rounds by
Cliff Couser in 1996. Tillis fought his last fight in 2001, losing to clubfighter
Rob Calloway when he was 44 years old. ==Professional boxing record==