The fast-moving sport of team handball comes to Arlington this weekend when the Greater Washington Team Handball Association hosts the 24th annual national championships. The three-day tourney at the Thomas Jefferson Community Center brings together club and college teams from across the country. The object of team handball is to throw a small, soccer-like ball through a goal that's smaller than a soccer goal. Play is scheduled for Friday from 3:30 to 11, Saturday from 8 a.m. to 11 p.m., and Sunday 8 to 7. The final championship matches start about 3:30 on Sunday. The center is at 3501 Second Street South, just off Glebe Road near U.S. 50. Call 532-5849. Admission is $2 for adults and $1 for students with ID, those under 18 and members of the community center. Or you can try soccer and catch Team America's season-opener against the Tulsa Roughnecks at 5 at RFK Stadium. Team America, which is based in D.C., is destined to compete in the 1984 Summer Olympics and the 1986 World Cup championships. Tickets range up to $7 and are available at Ticketron outlets or by calling USA-TEAM. If taking Metrorail, exit at the Stadium/Armory station off the Blue or Orange Line. And don't forget that "Gold Cup" fever strikes this Saturday at the Broadview Course in Warrenton. The steeplechase races start at 1:30 but gates will open at 10. To get there, take U.S. 66 to Route 29-211 south and turn right after the second light. General admission is $4; call 703/347-2612.