Curt Gilliam connected for a grand slam in the second inning, carrying No. 7 River Hill to a 4-3 victory over Hammond and earning at least a share of its first county baseball championship.
Kevin Marrie threw a complete-game four-hitter for the seventh-ranked Hawks (13-3 overall, 11-3 league), who stretched their winning streak to eight games.
"It's awesome just to be a part of getting the first county baseball title for our school," said Gilliam, who went 3-for-4. "I never hit a high school home run before, and it felt great."
Marrie (4-2) won his third straight start. He struck out seven, walked seven and picked off two runners.
"Everyone has been real focused the last eight games, and this [championship] feels good because River Hill has had some real good teams in the past that never won it," Marrie said.
No. 13 Glenelg 3, Mount Hebron 1: Tim Siders hit a two-run homer in the top of the seventh inning and Mike Corona pitched a complete game to defeat the host Vikings.
The win kept alive Glenelg's hopes of catching River Hill for a share of the county championship. Glenelg (12-3, 9-3) must defeat Oakland Mills today and Long Reach tomorrow.
"The last thing on my mind was a home run," Siders said. "There was a man on second base, so I was just trying to make contact. Corona deserves all the credit."
Catcher J.P. Debrowski had doubled to set up the winning hit.
"This was my best game of the year," said Corona, a 6-foot, 185-pound junior right-hander who improved to 5-1. "I had everything today, even my changeup. This was a must-win game for us, so it felt great."
No. 10 Centennial 4, Howard 3: The Eagles remained in the running for a share of the county title by defeating the Lions in 12 innings.
The winning run scored on a throwing error.
If the Eagles (11-5, 10-3) defeat Wilde Lake today, they will tie River Hill for the title.
No. 12 Centennial 16, Atholton 5: The Eagles completed a second straight undefeated league season by routing the Raiders.
The county championship was Centennial's ninth overall. The Eagles are 10-3 overall and 9-0 in the league.
Sean Dougherty led the Eagles with six goals. Mike Down scored three goals.
"Our first goal of the season is out of the way now," Eagles coach Mike Siegert said.