The final round of the Washington Area Amateur Champions tournament at Marlboro produced some bizarre moments.

A cloudburst suspended play 1 1/2 hours last Sunday and caused a blackout in the clubhouse, so most who were watching television for the final round of the U.S. Open turned to food, drink and conversation by candlelight.

When the weather cleared, volunteers and players had to remove a tree which had fallen across the 18th tee.

Dave King and Glenn Barrett had hit shots onto the 14th green just before the rains hit. When they returned, the wind had blown their golf balls 10 feet farther from the cup. Since they did not mark the balls before scurrying from the rain, rules of golf forced them to putt from the longer distance.

Then there were those inflated, double-digit scores on the devilish course carved out of woods, with 14 water holes.

Henri deLozier, who led the tournament at one time, hit his tee shot into water on the 17th hole. He hit a long second tee shot with all his might and exclaimed, "Take that, Duke," the nickname by which the course is known.

But "the Duke" would have none of it. DeLozier ended up taking 10 strokes on the hole by sinking a good putt, which drew an ovation from the gallery and a smile from the usually stoic golfer. The record for high score on the 17th hole is 24, taken a few years ago in the WAAC.

Defending champ Ken Weakley, Tony DeLuca, Neff McClary and Rob Black are among the field in the 54-hole stroke play Northern Virginia Amateur which starts at River Bend.

Last autumn, District Amateur titlist Black fell and suffered a skull fracture and brain bruises and spent 17 days in the hospital.

He suffered slurred speech for a few weeks and his golf game sagged but he says all is normal now, except for lapses of concentration on the golf course.

The 10th Vince Lombardi Golf and Tennis tournament is set for Monday on both the Chief and Valley courses at Indian Spring, with 300 golfers and 100 tennis players. The event will raise about $150,000 for the Lombardi Cancer Research Center at Georgetown University. Jim Simpson will broadcast the happenings on ESPN cable sports network . . . The Middle Atlantic PGA Section Championship July 30 at Shannon Green will double its purse from last year, to about $15,000, because of sponsorship by Michelob. A pro-am is scheduled July 29 with a clinic and exhibition by trick shot artist Paul Bumann.

Bill Mayhugh, WMAL radio man, has been named honorary chairman of the Lupus Celebrity tournament at Andrews Air Force Base Sept. 8, to stimulate awareness and financial support for research of the skin disease lupus erythematosus . . . The 47th Metro Schoolboy Tournament starts Monday with ages 16-17 qualifying at Lakewood and 14-15 at Georgetown Prep. The older players move to Germantown for match play Tuesday and Bretton Woods for two more rounds Wednesday and the final Thursday. The younger players play exclusively at Prep . . . The Southern Maryland Invitational is next weekend at Breton Bay near Leonardtown. Persons interested in playing should call Breton Bay. Entry fee is $25.