In only five professional fights, 19-year-old Darryl Richardson has become the Virginia lightweight boxing champion. Last night at the Westpark Hotel at Tyson's Corner, Richardson dethroned Scott Farmer, "The Manassas Mauler," with a relatively easy five-round technical knockout.

From the first round on, when Farmer was floored twice with sharp right hands, Richardson fought with a confident smile on his face.

The fight was stopped at 2:10 of the fifth round when Richardson connected with successive right hands that left Farmer dazed and wobbling. Referee Billy Sahnow stopped the fight, even with Farmer on his feet.

"He did the right thing," said Richardson of the referee's decision. "He was definitely hurt."

Richardson is 4-1, Farmer 12-5.

Veteran Mike Baker won a unanimous decision over Mike Grant of Philadelphia in 10 rounds. Baker (47-16-1) was the aggressor and opened a cut over Grant's right eye and appeared on the verge of a knockout in the sixth, eighth and ninth rounds. Grant, 24, is 17-4.

Light middleweight Toby Smith of Portsmouth, Va., used four strong overhand rights to knock out Tony (The Witch Doctor) Ojo in the first round. Thirty seconds into the fight, Smith stunned Ojo and, at the 2:20 mark, put Ojo down for a count of eight.

After Ojo regained his feet, Smith immediately put Ojo through the ropes and ended the fight. Smith is 5-3-1; Ojo is 5-2.

In the opener, Portsmouth's Mal Cook (2-0) connected with a short right lead and followed with a left hook to floor Marvin Crawford (5-7-1) and score a second-round TKO in a junior middleweight bout.