Steve and Tim Woda each won two matches yesterday to advance to today's quarterfinals of the Worsham Memorial tournament at Cedar Crest Country Club in Centreville.

Steve Woda, 19, going into his sophomore year at South Florida, defeated Don Meadows of Haymarket, 5 and 4, in his morning opening-round match. He then eliminated Emmet Schoolboy champion Mark Jansen of Fairfax, 2 and 1, in the afternoon second round.

Tim Woda, 17, a senior at DeMatha, first ousted Steve James of Burke, 3 and 1, then defeated Mike Svec of Potomac in 19 holes.

Doug Ridgway of Rockville and Old Dominion University defeated Greg Hamlett of New Carrollton, 6 and 4, and Tony Mills of Bowie, 6 and 5.

Defending champion David Santoro of Arlington and Virginia Tech lost in the second round to Ray Bellamy of Cheverly, 4 and 3.

David Patterson of Lutherville, the 1986 area junior of the year and the medalist in this tournament with a 75, lost in the opening round to David Gildea of Bethesda, 4 and 3.

Gildea, who ended his morning match with three straight birdies, lost in the afternoon to John Joy of Washington, 4 and 3.

Va. Women's Amateur:

Brenda Seymour of Chantilly won the first five holes of her match against Joan Gardner of Rockville with an eagle, a birdie and three pars and went on to a 5 and 4 victory in the first round of the tournament in Hot Springs.

Beth MacLean of McLean sank an eight-foot putt for a birdie on the 20th hole to defeat Carolyn Wilkerson of Midlothian. Three-time winner Jane Mack of Richmond defeated teen-ager Marian Sison of Arlington on the 19th hole.

Donna Martz of Broadway, Va., defeated Judi Enright of Arlington, 4 and 3.

Defending champion Donna Andrews of Lynchburg eliminated Margaret Balch of Richmond, 5 and 3.

Defending seniors champion Mary Jane King of Newport News defeated Ruth Brubaker of International Falls, Va., 5 and 4. Betty Wren of Williamsburg defeated medalist and three-time champion Audrey Najjum of Roanoke, 1 up. Ruth Ann Verell of Alexandria defeated Lu Penner of Virginia Beach, 3 and 1.