Playing on slow clay at the Aspen Hill Racquet Club, Deane Frey of Lynchburg, Va., used his serve and net game to counter the quickness of the District's Randy Vigmostad and win the Mid-Atlantic Regional singles championship yesterday.

Vigmostad had made it to the final by working the court well, but Frey's topspin serves, forehand and crosscourt shots took their toll from the very beginning. Losing his serve only twice, Frey won his second Mid-Atlantic singles title, 6-3, 6-3.

"He's {Vigmostad} is a pretty nonchalant player, and I felt like that if I just played my game that I would beat him," said Frey, who won the singles and doubles titles in 1984. "I've beaten him twice before. The last time we played it was {7-6} in the third and that was on fast, hard courts, which is his surface, and this is my surface."

Despite unforced errors, especially on his backhand, Vigmostad had a chance to regroup in the last game with Frey serving.

After going down, 0-15, Frey got even on a sensational forehand winner. The two then had a lengthy rally, until Frey tried to force the action by charging the net, where he had had success throughout the tournament. Frey elegantly dropped the ball over the net to go up, 30-15. After another winner by Frey, Vigmostad ended the match by hitting a backhand into the net.

"I had some errors, but I was also playing against a better player," Vigmostad said. "He was hitting the ball really deep, a lot of topspin that kept me back. When I did get that short ball, I had to make sure it counted because I didn't get many of them. He forced me to make more errors."

The way the match began it appeared Vigmostad would be up for the challenge, as both players broke. But Frey, who broke Vigmostad four times in the match, settled down on his next service. Then, after failing to take advantage of four break points on Vigmostad's serve, he finally went up by 3-1 as Vigmostad double faulted. Frey won the first of his two love games to take a 4-1 lead.

In the doubles final, Chris and James Delaney's team work and down-the-middle passing shots helped them repeat as champions by beating Fred Drilling and George Meyers, 6-2, 7-6 (7-3).

"We've had quite a bit of experience, starting from several years ago," said James Delaney, who is 34, five years older than his brother. "We played the circuit for a couple years together, so it's an experience thing more than anything."