Top-seeded Roscoe Tanner had to fight off a tenacious Steve Krulevitz in the first set of their match last night before blitzing the Baltimore native in the second set for a 6-4, 6-0 last-round victory in the Volvo Classic tennis tournament.

Harold Solomon, seeded second, easily dispatched Bernie Mitton, 6-2, 6-2, in their second-round match before 3,400 fans at George Washington University's Smith Center in another night match.

In a day match, things did not go well for Stan Smith. Seeded fourth, Smith double-faulted the final points in two games in an upset loss to Brian Teacher, 7-5, 6-2.

The other top seeds -- Victor Amaya (6), John Sadri (5) and Eliot Teltscher (8) -- also advanced.

Tanner was forced to deuce twice in the first game of the first set before winning it. Later, with Tanner leading, 4-1, Krulevitz mounted his challenge, taking the next three games to tie the set.

"I missed too many first serves and didn't get quite the spin I wanted," Tanner said. "But after I went ahead of him at 5-4, I started getting some good solid ground strokes . . . I got a little more confidence in the game when I broke him at 5-4 and stemmed the momentum he had been building up by catching up from 4-1 to 4-all."

Tanner breezed through the second set. "I lost a little bit of my concentration in the second set," Krulevitz said. "He was returning the serves very well and that's what hurt me most."

After taking a four-game lead, Solomon had little trouble with Mitton. "I was surprised," Solomon said. "I thought he would be very tough. We usually have very close matches.

"If his timing is a little bit off, he's in trouble, and it was a little bit off tonight. But I thought this was the best I've served in the past month."

The Smith-Teacher match was a lackluster one, with the lead see-sawing in the first four games before Teacher went ahead, 4-2. With Teacher leading at 5-3, Smith rebounded to tie it at 5-5, but could not sustain the drive.

Solomon and Smith will conduct free tennis clinics today and Friday at the Connecticut Connection at Connecticut Avenue and L Street starting at noon.

Today, Solomon will discuss "concentration in tennis." Friday, Smith will discuss doubles strategy.