Whatever happened to . . . Paul Mulvey, former Capital winger banished at NHL midseason by Los Angeles after refusing to fight on coach's order? "Still bitter," he said, but banging away in the American Hockey League for 63 penalty minutes in only 18 New Haven games.

Mulvey, remembered in Washington as far from reluctant to employ his 6-feet-4, 220 pounds forcibly, says, "I still go out and play my bump-and-grind game. If someone shoves me or tries to hurt a teammate, I'll be the first to throw a punch." As evidenced by two broken bones in the fingers of his right hand.

Mulvey plays despite the injury, reckoning he has no future with the Kings under Coach Don Perry: "The guy . . . says publicly how I'll never play for him again. How can he take me back? . . . But I have to work myself back into the National Hockey League." So Mulvey is up for the AHL playoffs: "That's when they (NHL scouts) take a good look at you."

NHL playoffs are what Kevin McCarthy, Vancouver defenseman/captain, is about to miss: broke an ankle in practice Monday . . . Golf tough-lucker: qualified for his first Masters, Sammy Rachels forced to withdraw--back trouble . . .

Fire ravaged a wintering barn at Garden State Race Track, Cherry Hill, N.J., and destroyed Native Plunder, a 4-year-old thoroughbred filly valued at $1 million by owners Mr. and Mrs. Arnold Wilcox of Bethesda, Md. Four other Wilcox horses injured, taken to Penn's New Bolton veterinary center: Ask Me How ($300,000), Noble Name ($100,000), Hit Parade ($100,000), Airline ($85,000) . . .

Baseball's 1986 All-Star Game has been awarded to Houston-- "to coincide with 150th anniversary of the Republic of Texas" and end of proposed Astrodome renovation. And the '84 and '85 sites not yet decided . . . RFK? Cracker Jack is serious about its July 19 Old-Timers Baseball Classic. Page 4 of current Newsweek proves it: sizable ad starring Hank Aaron, Brooks Robinson, all-star ballot and invitations to "pick up our free Player Guide at the Cracker Jack display at your local store." Will the Hill crash the act with congressional game as prelim? . . .

Emil Verban Memorial Society of Chicago Cubs devotees received "warm greetings" from member Ronald Reagan at second biennial luncheon here yesterday. Member Jim Brady, Reagan's press secretary, asked to throw out first ball Friday in Wrigley Field, can't; parents of late Cub infielder Steve Macko will do it.

Howard White. Jim O'Brien. Bob Bodell. Tom Roy. Jap Trimble. Maryland alumni assembling for hoops tonight, 7:30 p.m., Theodore Roosevelt High School, with WKYS radio; benefits Spinal Cord Injury Association and TRHS choir.