SAN ANTONIO (AP) _ California was still celebrating its victory over Iowa in the Alamo Bowl as San Antonio Bowl Association officials were sizing up the success of the inaugural New Year's Eve event.

After a fireworks display and a sea of blue, orange and white balloons had cascaded onto the playing surface from the Alamodome ceiling amid the playing of ''Auld Lang Syne'' late Friday, bowl officials were cautiously optimistic about the game's future.

''The 45,716 was the actual attendance, although we had about 50,000 in ticket sales,'' said Derrick Fox, executive director of the SABA. ''Of course, we would have liked to have had 65,000,'' which is the dome's football capacity.

Meanwhile, Cal and Iowa received a guaranteed $700,000 each. ---

TULSA, Okla. (AP) - A Texas motorcycle racer was killed when his cycle crashed during a race at the Tulsa fairground, the Tulsa County sheriff's department said Sunday.

Randy Overstreet, 41, of Pilot Point, Texas, lost control of his cycle as he was being passed in the opening laps of an indoor race Saturday night, the sheriff's department said.

Overstreet died at a Tulsa hospital.

No one else was injured, the sheriff's department said. ---

PORT WASHINGTON, N.Y. (AP) - Unseeded Federico Browne of Argentina outlasted No. 7 Kruno Zrinski of Croatia 6-0, 2-6, 6-1 Sunday to win the Boys 18 title at the Port Washington International Championships.

Unseeded Antoanata Pandergova of Bulgaria beat top-seed Anne Kremer of Luxembourg 6-3, 6-1 for the Girls 18 crown.

Browne and Carlos Tori of Peru beat Britons Luke Milligan and Michael Ingham 6-4, 6-2 to win the Boys 18 doubles title.

Kremer and Great Britain's Ekaterina Roubanova were 6-2, 1-6, 6-2 victors over Pandergova and Teodora Nedeva of Bulgaria to win the Girls 18 doubles crown. ---

OBERWIESENTHAL, Germany (AP) - High winds and snowfall Sunday forced a 24- hour postponement of the World Cup nordic combined competition.