A medical study presented to an international forum of sports psychologists in Copenhagen warned that "a proportion" of all young amateur boxers might incur brain damage from their sport.

Prof. J.T.L. Wilson of Stirling University in Scotland said that although brain damage caused by boxing is widely supposed to be confined to older fighters, he and five colleagues concentrated on amateurs who had four to 200 fights and averaged 26 years of age. Wilson's team examined 20 boxers and found "significant abnormalities" in neuroropsychological and neurological as well as encephalographic and X-ray scanning tests . . .

Jim Ed Jones, manager of Reston welterweight Tony Ojo, said he mailed a certified letter to D.C. Boxing Commissioner Cora Wilds to protest Ojo's loss May 25 at the Washington Convention Center.

"I am fully prepared to present relevant oral and documentary evidence . . . to prove that Tony Ojo won that fight," Jones said after he and nearly 20 other people, including boxing trainers and managers, reviewed the films of the bout in which Ojo lost a split decision to Tommy Ayers of Cincinnati.

Wilds said, "It was a fair fight. The three judges scored it fairly. They scored it like they saw it. The D.C. Boxing Commission stands by its judges' decisions and that's the bottom line."

Jones wants a public hearing to protest what he said were several violations, including the failure of the judges to reward Ojo a mandatory two-point advantage in the first round for a knockdown.