All the world's a stage, and, in sports, no stage like tennis: Tracy Austin is The Associated Press' female athlete of the year, matching male athlete John McEnroe to give their sport a 1981 sweep (its first ever) in hearts of voting sportswriters/casters. And no doubt about it: close runner-up, 95 votes to Austin's 99, is Chris Evert Lloyd, far outdistancing third-place Jan Stephenson, the golfer, with, uh, 10 . . .

Austin began 1982 on the wrong foot, of course, at GW's Smith Center, but in '82 women's skiing, Gerry Sorensen of Canada rises, downhill winner yesterday at Grindelwald, Switzerland; by .32 second over Marie-Cecile Gros-Gaudenier, France. Cindy Nelson was fourth, for 27 World Cup points in pursuit of leaders Erika Hess and Irene Epple . . .

Cincinnati will wear (home) black jerseys and the San Francisco 49ers visitors' white in the Super Bowl--and one more Bengal boost: Coach Forrest Gregg won a telephonic coin toss and forced the 49ers to get up for morning pregame practices in the Silverdome while Cincy relaxes until afternoons in Pontiac.

A highway accident has taken one of America's finest female athletes of other years: runner Kathy Jackson, 27, former record holder at 1,000 and 10,000 meters who later coached U. of Colorado women's track and cross country. Hit by a car while jogging with CU distance runners Mark Scrutton and Michael Bannister, Jackson died in Boulder Memorial Hospital after more than four hours of surgery. Police said she was facing traffic; the motorist, 18, charged with careless driving . . .

Another traffic incident at Boulder found Chuck Fairbanks, Colorado's football coach, reportedly handcuffed by city police at gunpoint after his 1982 dealership-loaner car, allegedly speeding, was stopped and mistakenly identified as stolen. Police said Fairbanks had become abusive upon being accosted. Neither coach nor police plans to file charges . . .

Billy Don Jackson, 22, ex-UCLA starting tackle, pleads no contest to voluntary manslaughter in stabbing of Mark Bernolak, 24, Santa Monica; sentencing set March 26 . . .

Add Timmie awardees at Saturday's Touchdown Club dinner (a 2,000-seat sellout): Bill Mayhugh, the town's golfin'est deejay, for community service; Martin West III, the winnin'est golfer, for being good . . .