Jim Duke of Potomac shot 73 -- 218 to win the Dewey Ricketts Cup at Brooke Manor CC in Rockville. Duke, who led all three rounds, finished two strokes ahead of Adam Corson of Potomac. Corson, who finished second in the Worsham Memorial last week, shot 71 -- 220. . . .

Dumfries Triangel Quantico will play in today's championship of the regional Junior Little League baseball championship in Taylor, S.C. The team advanced by defeating North Carolina, 5-0, and South Carolina, 9-6. . . .

Executive III of Washington advanced to the round of eight in the 19-and-under AAU basketball national championships in St. Petersburg, Fla., defeating Franklin (Ind.) in overtime, 121-116. Dickey Simpkins had 32 points and Donald Ross of McNamara scored 28. . . .

In the 16-and-under national AAU baseball championships in Clearwater, Fla., the Capital Rebels of Washington were eliminated in the quarterfinals, 8-2, by Team Florida, 8-2. The Rebels finished the tournament with a 3-2 record. . . .

In the 13-and-under national AAU basketball championships in Indianapolis, Kingman Pythons of Washington advanced to the round of 16 with a 61-58 victory over Iowa Rebels in double overtime. Aaron Moody scored 14 points to lead the Pythons. The Northern Virginia All-Stars lost to defending national champions Minnesota Wolves, 64-58, to advance to the consolation round.