MOTOR SPORTS—MICHAEL KEYSER and AL HOLBERT, driving a Porsche Carrera, won the 12 Hours of Sebring, covering 230 laps of the 5.2-mile Florida course at 99.66 mph. Another Carrera finished second, two laps behind.
David Pearson won the Atlanta 500 stock car race for the second time, averaging 128.904 mph in his Mercury. Second place went to Benny Parsons in a Chevrolet.
SPEED SKATING—In Alma-Ata, in Soviet central Asia, STEN STENSEN of Norway set a world record of 14:38.08 for 10,000 meters, and GALINA STEPANSKAYA of the Soviet Union broke the 3,000-meter world record with a time of 4:40.59.
SWIMMING—The UNIVERSITY OF MIAMI won the AIAW championship for the second straight year, scoring 445� points to second-place UCLA's 381, in Fort Lauderdale, Fla.
TENNIS—Having paid a $6,000 fine to get back on the circuit, ILIE NASTASE ripped Jimmy Connors 4-6, 6-0, 6-1 to win the IPA tournament at Carlsbad, Calif.
At the Jackson, Miss. WCT tournament, KEN ROSEWALL downed Raul Ramirez 6-3, 6-3.
In Keauhou-Kona, Hawaii, ARTHUR ASHE beat Bjorn Borg 6-4, 7-6, 6-3 to remain undefeated in the $320,000 WCT Avis Challenge Cup series.
On the Virginia Slims circuit EVONNE GOOLAGONG destroyed Martina Navratilova in straight sets 6-1, 6-1 to win in Dallas.
MILEPOSTS—HIRED: ABE LEMONS, 53, as basketball coach at the University of Texas. In 18 years at Oklahoma City University, Lemons compiled a 309-179 record; at Pan American he took a team that was 4-22 in 1972-73 and so transformed it that the Broncs had a 20-5 record this season.
OPENED: Baseball spring training camps, by order of Commissioner BOWIE KUHN, ending an 18-day lockout by the owners (page 20).