Tony Ojo of Reston and Philadelphian Kevin Howard, the last fighter to take on Sugar Ray Leonard, have been matched for a 10-round junior middleweight bout Aug. 25 at the Crystal City Hyatt Regency in Arlington.

Howard's knockdown of Leonard, before the former world welterweight champion knocked him out, May 11, 1984, led Leonard to abort a comeback from retirement. Ojo, currently No. 15 among U.S. Boxing Association welterweight contenders, is still trying to overturn his split-decision loss to highly ranked Tommy Ayers at the Washington Convention Center May 25.

Jim Ed Jones, who handles Ojo and is copromoting the Aug. 25 card with a 5 p.m. start, said he -- and 165 petitioners -- have filed an appeal to D.C. Superior Court over the scoring and outcome of the Ayers fight. The D.C. Boxing Commission refused Ojo a hearing . . .

D.C. welterweight Daryl Lattimore imposed two standing eight-counts on Riquerme Berroa of the Dominican Republic and won a unanimous decision that helped the United States to a fast start in the amateur North American Boxing Championships at Beaumont, Tex.

"This is just a tribute to our coaches, Roger (Hayes) and Ken Adams," said Lattimore, a left-handed boxer. "They've been working us hard, and Ken Adams is from the Army."

Lattimore's standing eight-counts resulted from a series of ripping combinations in one corner in the first round and a left-right series in the third.