Editor's note: This report was updated to correct the spelling of a player's name.
Visiting Elk Grove became the first Mid-Suburban East team with four divisional wins by topping Buffalo Grove 5-3 on Monday.
Mikey Maize hit a solo homer, leadoff man Luc DiMaso went 2-for-4 with an RBI and run scored and Adam O'Malley went 3-for-3 with a double and 2 runs scored for Elk Grove (11-4, 4-0).
Mike Woods allowed 2 hits over 6 innings to earn the victory, and Alex Tinkoff got the final out to earn a save.
Matt Blankshain and Luke Potnick both had doubles to account for the 2 hits by the Bison (5-6, 2-1).
Rolling Meadows 9, Prospect 0: Matt Dennis produced a dominant outing to help the visiting Mustangs stay perfect in the loss column against MSL East foes.
Dennis allowed just 1 hit to Prospect (1-6, 0-4), but Meadows (5-5-1, 3-0) had 10 hits, including doubles from Alex Niecikowski, Mike Dolan and Mickey Wazorick.
Barrington 3, Conant 2 (8): Host Barrington scored the winning run in the bottom of the eighth inning to make a winner of the Dylan Balogh and the Broncos in MSL West play. Barrington improved to 8-7 overall and 3-0 in the West; Conant fell to 0-7 and 0-1.
Palatine 5, Hoffman Estates 0: Jarrod Juskiewicz tossed a complete-game 2-hitter with 7 strikeouts to help the visiting Pirates pick up an MSL West victory.
Anthony Fortunato went 3-for-3 with 1 RBI and a run scored for Palatine (6-7-1, 2-1), which had 10 hits. Will Steward and Chris Macahon had 2 hits apiece for the Pirates.
Hoffman Estates fell to 3-8 and 1-2.
St. Viator 4, Carmel 2: Greg Steiner tossed a complete-game 7 hitter to help the host Lions pick up a big win in East Suburban Catholic Conference play. Steiner (2-2) struck out five.
Mike McGrath had a leadoff homer that helped spark a 3-run rally in the fifth inning, and St. Viator (9-7, 3-2) never trailed.
Hersey 9, Wheeling 0: Michael Sauer struck out seven in a complete-game 1-hitter as the host Huskies picked up their first MSL East victory.
Joe Silva, Eric Labahn and Brendan Starr doubled for Hersey (3-8, 1-1). Labahn finished with 3 RBI, while Starr and Jack Warner had 2 apiece.
Nick Ricciardi had the only hit for Wheeling (3-7, 0-4), a single.
Leyden 7, Morton 1: The visiting Eagles scored all their runs in the second inning to make a winner of sophomore starter Hector Herrera, who allowed 5 hits in 6 innings. Brandon Aguirre drove in 2 runs for Leyden (2-10, 1-8 WSC Gold).