The Union (N.J.) Lancers, bidding for a third Potomac Memorial Soccer Tournament title in four years, won two games yesterday in the boys under-19 division at Aspen Hill Field.

Union routed Pennsylvania state champion German Hungarian Strikers, 5-1, then beat New York power Hewlett, 6-2. Union will play Olney in a feature game at 2 p.m. as part of today's final round of activity at Aspen Hill.

In girls under-19 play, former national champion Springfield (Va.) Spirit advanced with victories over Bethesda, 5-0, and Buckingham, Pa., 1-0. Fairfax Express beat Beadling, Pa., 5-0.

Later in the day, Fairfax was held to a 0-0 tie with the Potomac Wonders. The two teams will meet again today in the semifinals at 9:25 at Montgomery College-Rockville.

Springfield will meet Cleveland East-West in the other girls under-19 semifinal at 8 a.m. at Montgomery-Rockville.

Bethesda United, seeking a fifth Potomac tournament championship, and Union County, N.J., were dominant in under-17 boys play, though the Maryland team was extended by Charles River, Mass., before winning, 3-2.

In other results, in under-16 boys, the Bethesda Bandits upset Eastern Pennsylvania champion Downing Town, 1-0. In under-13 boys, the Potomac Flame defeated Ohio Elite, 3-1, and Mississippi Olympics, 1-0.