Tony Shields led a parade of five Gonzaga runners across the finish line as the Purple Eagles dominated the Varsity II (enrollment 350 or more) 3.1-mile race in the Spingarn Invitational cross-country championships Saturday at Fort Dupont Park. In sweeping the first five positions, Gonzaga won easily with 15 points. DeMatha had 59 and McLean 102.

Shields completed the race in 16 minutes 46 seconds. The next four finishers were Joel Herrington (16:55), Shane McLaughlin (16:57), Ben Busse (17:01) and Shane Cotter (17:06).

In Varsity I (350 or less), Georgetown Prep's Bogi Yohannes (16:38), Chris Neal (16:39) and Jama Bile (16:40) took the first three places to lead their team to victory with 36 points, four fewer than St. Albans. Prep's Mike McPherson was fifth at 17:02, 10 seconds behind Matt Ross of St. Albans.

Georgetown Visitation's Amy Linson won the girls Varsity I 2.1-mile race in 13:52, but National Cathedral had five runners in the top 10 to take team honors with 29 points. National Cathedral's Kate Galbreath was second (14:22). Barrie Day's Anne Hobbs, a transfer from the state of Washington, was third in 14:50.

Desiree Ficker of Holy Child won the Varsity II race in 15:20. Lisa Schreppler of Caesar Rodney (Del.) was runner-up in 15:22. Amy Lewis (15:52) was third, leading Marshall to the team title with 28 points.

Bruce Williams, the meet director, said he was pleased with the turnout: 800 runners from 97 schools.

"We invited 250 schools up and down the East Coast. I was glad we had teams from all the local jurisdictions as well as some out-of-state schools," he said. "The weather report prevented a few from coming."

Angie Brown of Lake Forest (Del.) won the girls junior high race in 16:22, just ahead of Deal's Leslie Wilson (16:29). McLean took team honors with 40 points. Matt Kelvin (13:05) and Joe Adams (13:17) finished 1-2 in the boys junior high race, helping St. Albans win the team crown with 31 points.

In the junior varsity races, Georgetown Visitation's CeCe Clarry won in 17:08 and her team took the title with 41 points. Chris Elliott (18:16), Josh White (18:20) and Gordie Vap (18:39) finished second, fourth and fifth to lead the St. Albans junior varsity to the championship with 22 points. Gonzaga's Scott Beal won the 3.1-mile race in 17:54.

Many of the same athletes will be among the 100 schools and 2,700 runners competing Saturday in the Georgetown Prep Cross-County Classic.

Unbeaten Meghan McCarthy of Robinson, a three-time All-Met, heads the girls field. Yorktown's Amy Huybrecht and O'Connell's Mary Conway, ranked second and third, also will compete. Turnabout Is Fair Play

After a 2-6-4 season, Calvert's field hockey team has emerged as the team to beat in the Southern Maryland Athletic Conference. Goalie Jennifer Prowinski has allowed only two goals, both in a 2-0 loss to Northern, while helping her team to a 7-1-1 record.

"I've always stressed defense," Coach Mary Finley said. "If you don't allow a goal, then you only have to get one to win."

Calvert tied league-leading La Plata, 0-0, in double overtime as the defense shut down high-scoring Danielle Whipp.

The Cavaliers are led by junior center link-centerback Elena Moore, who has four assists. Moore controls Calvert's offensive tempo along with junior Jodie Suit and senior link Kristin Bates. Junior sweeper back Angela Stone and sweep Jennifer Prince team with Prowinski on defense.

"By living through last year's experience, these girls have realized that once you control the ball and move it, you can win games," Finley said. "We're not real fancy, we just play basic, fundamental field hockey." Unbeaten Teams Tested

Severna Park, which takes an 85-game regular season winning streak into today's volleyball match against Meade, will face Anne Arundel County's other two 4A unbeatens, Broadneck and Glen Burnie, a week apart.

Severna Park (8-0) plays at Broadneck (7-0) Friday and takes on Maryland Region IV favorite Glen Burnie (8-0) the following Friday. Broadneck, the surprise team in the county, should have extra motivation for its meeting with Severna Park; it didn't score more than eight points in any game last year.

Broadneck, which starts two juniors, including 6-foot-2 middle hitter Therese Cornish, and two sophomores, has yet to be tested, according to Coach Glenn Brainer.

"We really haven't played tough teams this year," he said. "I hope we give Severna Park a good game. We're being humble."

Severna Park is an inexperienced team; 5-10 middle hitter Kim Aller is the only starting senior.High Ranking

The Bowie boys soccer team, ranked first in the area, is ranked third nationally by the National Soccer Coaches Association of America.