A Roundup of the Week July 11-17

ARENA FOOTBALL—In the last week of the regular season, Chicago (10-1-1) and Los Angeles (5-6-1) played to a 37-37 tie, the first in Arena League history. New York (2-10) ended the season in last place by losing 48-17 to Detroit (9-3), which has now won seven straight. New England (3-9) avoided a last-place tie with New York by defeating playoff-bound Pittsburgh 44-34 behind Russell Hairston's four touchdown catches.

BOXING—At the Olympic Box-off in Las Vegas, ROMALLIS ELLIS of Ellenwood, Ga., and TODD FOSTER of Great Falls, Mont., qualified for the U.S. team by winning unanimous decisions over opponents in the 132-and 139-pound classes, respectively. Joining them in Seoul will be MICHAEL CARBAJAL of Phoenix, who won at 106 pounds; ARTHUR JOHNSON of Minneapolis (112); KENNEDY McKINNEY of Killeen, Texas (119); KELCIE BANKS of Chicago (125); KENNETH GOULD of Rockford, Ill. (147); ROY JONES of Pensacola, Fla. (156); ANTHONY HEMBRICK of Fort Bragg, N.C. (165); ANDREW MAYNARD of Fort Carson, Colo. (178); RAY MERCER of the U.S. Army in Germany (201); RIDDICK BOWE of Brooklyn (over 201) (page 30).

GOLF—SEVE BALLESTEROS defeated Nick Price by two strokes to win the rain-delayed British Open, in Lytham St. Annes, England. Ballesteros had an 11-under-par total of 273 and won $136,000 (page 26).

Colleen Walker shot a final-round 69 for a total of 274, 14 under par, to beat four golfers by eight strokes and win an LPGA tournament in Danvers, Mass. Walker got $45,000 for the victory.

HARNESS RACING—MATT'S SCOOTER ($14), with Michel Lachance in the sulky, defeated favored Camtastic by 2¼ lengths to win the Meadow-lands Pace, in East Rutherford, N.J. The 3-year-old colt covered the mile in 1:52[1/5] to earn $519,000.

TRACK & FIELD—At the U.S. Olympic Trials in Indianapolis, FLORENCE GRIFFITH JOYNER of Los Angeles set a world record in the women's 100 meters, running a 10.49 in an early heat. In the finals she won again, beating EVELYN ASHFORD of Walnut, Calif., and GWEN TORRENCE of Decatur, Ga., both of whom also qualified. In the men's 100 meters, CARL LEWIS of Houston, DENNIS MITCHELL of Sicklerville, N.J., and CALVIN SMITH of Bolton, Miss., made the team. Another world record fell in the heptathlon when Jackie Joyner-Kersee of Long Beach, Calif., scored 7,215 points in winning an Olympic berth. Second-and third-place finishers CINDY GREINER of Eugene, Ore., and WENDY BROWN of Los Angeles will join her in Seoul. In the 400-meter hurdles, EDWIN MOSES of Newport Beach, Calif., made the Olympic team for the fourth consecutive time, and ANDRE PHILLIPS of Long Beach, Calif., and KEVIN YOUNG of Los Angeles qualified along with him. Others gaining berths were MARY DECKER SLANEY of Eugene, Ore., VICKI HUBER of Wilmington, Del., and PATTISUE PLUMER of Stanford, Calif., in the women's 3,000; JIM HOWARD of Alvin, Texas, HOLLIS CONWAY of Lafayette, La., and BRIAN STANTON of Los Angeles in the men's high jump; WILLIE BANKS of Los Angeles, CHARLIE SIMPKINS of North Charleston, S.C., and ROBERT CANNON of Long Beach, Calif., in the triple jump; DAVE STEPHENS of Chico, Calif., BRIAN CROUSER of Gresham, Ore., and TOM PETRANOFF of Oceanside, Calif., in the men's javelin; RANDY BARNES of South Charleston, W.Va., GREGG TAFRALIS of San Bruno, Calif., and JIM DOEHRING of Fall-brook, Calif., in the men's shot put; and GARY MORGAN of Clarkston, Mich., TIM LEWIS of Clifton Park, N.Y., and JIM HEIRING of Racine, Wis., in the men's 20-kilometer walk (page 14).

WEIGHTLIFTING—At the U.S. Olympic Trials in Boca Raton, Fla., MARIO MARTINEZ of South San Francisco, Calif., set an American record with a snatch of 415½ pounds, which, combined with his 485-pound clean and jerk, qualified him for the U.S. team in the unlimited weight class (over 242½ pounds). Joining him in Seoul will be JOHN BERGMAN of Daly City, Calif. (also unlimited); MICHAEL JACQUES of Warner Robins, Ga. (148¾-pound class); ROBERTO URRUTIA of Hollywood, Fla. (165¼); CURT WHITE of Charleston, Ill., and DERRICK CRASS of Belleville, Ill. (181¾); ARN KRITSKY of Herndon, Va., and BRET BRIAN of Baton Rouge (198¼); RICH SCHUTZ of Mount Prospect, Ill. (220¼); and JEFF MICHELS of Chicago (242½).

YACHTING—In the U.S. Olympic Trials, BRIAN LEDBETTER of San Diego won the Finn class berth with victories in four of eight races in Marblehead, Mass. In San Diego, JOHN KOSTECKI of San Diego and his crewmen BOB BILLINGHAM and WILL BAYLIS, both of San Diego, qualified for the Games in the Soling class, and another San Diegan, MARK REYNOLDS, and his crewman, Hal Haenel of Hollywood, won the Star class spot. Newport hosted the trials in the remaining five classes. In the only separate competition for women, ALLISON JOLLY of Valencia, Calif., and LYNNE JEWELL of Newport qualified in the 470 class; in the men's 470, JOHN SHADDEN and crewman CHARLIE McKEE, both of Long Beach, Calif., won all but two of eight races to get the Olympic berth; PAUL FOERSTER of Corpus Christi, Texas, and his crewman, ANDREW GOLDMAN of Greenwich, Conn., qualified in the Flying Dutchman class; PETE MELVIN of Long Beach, Calif., and crewman PAT MUGLIA of San Diego qualified in the Tornado class; and MIKE GEBHARDT of Fort Walton Beach, Fla., qualified in the Division II Sailboard class.

MILEPOSTS—FIRED: As manager of the Boston Red Sox, JOHN McNAMARA, 56, who was 297-273 in 3½ seasons with the Sox, including a 43-42 record this year, and guided them into the 1986 World Series. Third base coach JOE MORGAN, 57, was named interim skipper.

NAMED: As coach of the NBA expansion Miami Heat, RON ROTHSTEIN, 45, who had been an assistant with the Detroit Pistons for the past two years.

As basketball coach at Tulane, PERRY CLARK, 36, an assistant coach at Georgia Tech for the past six seasons.

As coach of the U.S. Olympic boxing team, TOM COULTER, 57, who had been an assistant coach with the team. He replaced Ken Adams, whose appeal of a six-month suspension for allegedly assaulting a boxing federation staff member was turned down by the USA Amateur Boxing Federation.

RESIGNED: University of Illinois athletic director NEALE STONER, 52, after a university investigation charged him and other athletic department officials with misuse of gifts and services. Stoner denied the accusation.

TRADED: By the Cincinnati Reds, outfielder TRACY JONES, 27, and righthanded pitcher PAT PACILLO, 24, to the Montreal Expos for catcher JEFF REED, 25, outfielder HERM WINNINGHAM, 26, and righthanded reliever RANDY ST. CLAIRE, 27; and by the Chicago Cubs, outfielder DAVE MARTINEZ, 23, to the Expos for outfielder MITCH WEBSTER, 29.