Former Maryland high jumper Bill Thierfelder was reluctant to accept the congratulations and handshakes yesterday afternoon at the Maryland Track Classic in Byrd Stadium.

Even though he had just tied the 6-year-old stadium record and broken his own meet record by jumping 7 feet 3 inches, Thierfelder said he was "slightly disappointed."

"That's my personal record so I should be happy," he said, "but I wanted to jump 7-4 and there's a special reason."

Thierfelder was wearing a Soviet Union track shirt, the same one worn by Russian high jumper Sergey Seniukov, when he set the record of 7-3 in a 1976 meet at Byrd Stadium between the United States and the Soviet Union.

"When the two countries exchanged shirts," Thierfelder explained, "Joe David (former Maryland star who is now Thierfelder's coach) was competing for the U.S. and he kept it. I figured that today, I'd break the record wearing the shirt of the man who set it."

Maryland junior Alan Baginski was the only double winner, taking the discus (175-8) and hammer throw (184-3), and placed second in the shot put (54-10). Ward Wilson, a Maryland senior, won the long jump with a mark of 24- 1/4.

More than 300 men, representing 49 teams, competed in 19 events. Maryland won the mile relay, 800 meters, long jump and shot put. George Mason won the 400-meter relay.

At the University of Virginia's Cavalier Classic, John Gregorek of Georgetown won the 3,000-meter steeplechase in 8:34.9. Gregorek's time was the fastest on the East Coast and third fastest in the country this year.

Other area winners were Mauri Anderson of Virginia in the long jump, 7.6 meters; Oliver Bridges of Howard in the 400-meter dash, 46.1; Lesley Welch of Virginia in the women's 1500 meters, 4:16.4; Cheryl Baker of Maryland in the women's shot put, 14.63 meters; Susan Glover of Virginia in the women's discus, 41.54 meters; Roberta Belle of D.C. International in the women's 400-meter dash, 53.76; and Jill Haworth of Virginia in the women's 800-meter run, 2:06.31.