Jen Voyton had three goals and Sheridan Street two as high-scoring River Hill posted big wins in its first two games of the season.
The Hawks beat Northern, 6-1, and Urbana, 3-1, in the Tournament of Champions at Tuscarora this weekend.
Reservoir, on the other hand, did not score a goal in the tournament, which matches up many of last year's top teams. All teams play two games; no champion is declared.
River Hill's Street, who led Howard County in scoring with 17 goals in 2011, picked right where she left off last fall by scoring the opening goal against Urbana in the first round of the tournament Friday. Katie Arensmeier set her up at the 24:02 mark in the first half.
Voyton scored off corner kick 10 minutes into second half on an assist by Haily Emrick, and added her second goal of the game unassisted 20 minutes later on a rebound shot from 30 yards out.
Urbana's lone goal came late in the game, with about five minutes left on the clock.
River Hill, the defending Howard County and District 5 champion, decked Northern, 6-1, in the second round on Saturday. Arensmeier scored eight minutes into the game on an assist by Alex Hamer. Hamer also assisted Street for the Hawks' second goal in the first half.
Just eight minutes into the final half, Callie Allen scored off corner kick, with an assist by Emrick. Midway through the half, Voyton got her third goal of the weekend, with Emrick getting her third assist of the game.
Rebecca Higgins and Jessica Hopkins also scored for the Hawks. Maddie Haugh got both assists.
Northern's goal came on a direct kick about 30 yards out.
Neither Reservoir nor Thomas Johnson could find the net in the opening round of the Tuscarora tournament and finished in a scoreless tie.
"Honestly, it was a pretty sloppy game and very back and forth, but both teams had some good chances that neither could capitalize on," said Reservoir coach Josh Sullivan.
Reservoir then lost to C. Milton Wright, 3-0, in the second game.
Lightning stops Oakland Mills
After beating Walkersville in the opening round of the Oakland Mills Tournament, the hosts played Loch Raven in the championship game that was shortened because of lightning.
"The girls were ready to play after losing to them last year and getting knocked out of playoffs," said Oakland Mills coach Christina Bleivik.
Oakland Mills got on the scoreboard first. Charlotte Bickhart took a corner kick that went long but Fern Peters was able to send it back through the middle. Caroline Vantiem volleyed it in for a 1-0 lead.
But that was the end of the scoring for both teams as the game was called because of lightning.
Oakland Mills advanced to the championship game in a strong outing against Walkersville in the first round of the tournament.
"I was very pleased with their overall play the entire first half," said Bleivik about her Scorpions. "We were talking and working the ball around nicely."