On Saturday, Laurel Race Course holds the 33rd running of the $250,000 Washington, D.C., International. Horses representing England, Ireland, Australia, Belgium, Denmark, France and the United States will compete in the 11/2-mile race over grass. Post time is noon for the first of nine races; the International is set for 4:30. Grandstand admission is $3; clubhouse, $5. Take the Baltimore-Washington Parkway north to Route 198. Go west for two miles, track on right. Call 725-0400.
Meanwhile, jumpers will have their day at the Saturday opening of the 500-acre Great Meadow steeplechase course in The Plains, Virginia. Six races will be conducted over brush, timber and on the flat beginning at 1:30. The featured event is the $15,000 International Gold Cup, a 19-fence timber race run over 31/4 miles. Gates open at 10 a.m.; the $10-per-car admission includes a pony race, a coaching exhibition, carriage parade and a parachute drop before the first race. From the Beltway, take I-66 to The Plains/Old Tavern exit. Turn left toward Old Tavern and head south for two miles on Route 245. The course is on the left. Call 703/253-5001.
Fans of indoor show jumping can see the United States equestrian team -- a gold-medal winner in the Olympics -- and teams from Canada and Great Britain in open- jumper events starting this Sunday at 5 at the eight-day Washington International Horse Show. Tickets for the international evening classes are $10 and $15; $3 for hunter division classes during the daytime. Call TicketCenter Phonecharge, 499-1800, or the Capital Centre box office, 350-3400.