Maryland high jumper Bill Thierfelder cleared a meet record seven feet and John Warner raised the pole vault record by 18 inches yesterday at the seventh annual Maryland Track Classic.

Thierfelder bettered Mike Corbin's 1978 jump of 6-11 and Warner, an unattached jumper, easily topped Keith Neff's record of 16-1, set in 1977.

Chappelle Henderson of Howard won both the 400-meter hurdles and the 110-meter hurdles and Morgan State's Neville Hodge won the 100 and 200-meter sprints.

Both Henderson and Hodge gained their victories by the slightest of margins. Henderson won the 400-meter hurdles in 52.2, a tenth of a second over both Bill Austin and Pete Beltrez.

Later, Henderson edged teammate Robert Brown in the 110 high hurdles with a 14.0 cloking to Brown's 14.1.

Hodge, running his races back to back, won the 100 in 10.4 edging both Greg Holmes and teammate Mark Leach. In the 200, Hodge's 21.0 was just enough to win over North Carolina State's Ed McIntire.

In other highlights, John Gregorek of Georgetown ran, leaped and splashed through 3,000 meters in the steeplechase and was clocked at 8:47.3, 10 seconds better than Virginia's Mike Cotton.

In a tight 1,500-meter run, Rich Brody of Catholic was timed at 3:47.1 for the win. Tod McCallister of North Carolina and Virginia's Vince Draddy were less than one second behind.

In the 800-meter run, Richmond's Julian Spooner ran a 1:49.9, edging teammate Barnabas Kipkorir by a tenth of a second.