Lake Zurich, Antioch and Lakes move up in the rankings, and Zion-Benton's Andrew Mitchell is the player of the week.
With records through Wednesday and previous records in parentheses.
1. Libertyville 28-4 (1)
Air Force recruit Joshua Holst throws a two-hitter, striking out 11, and homers in the North Suburban Conference champion's six-inning win over Warren on Monday.
2. Grayslake Central 24-6 (2)
Colton Ohm turns in his best outing, striking out nine in five shutout innings, in the Northern Lake County Conference champion's win against Lakes on Monday.
3. Mundelein 22-7-2 (3)
Known for his work on the mound, Scott Sanderson has been red-hot at the plate for the Mustangs with five hits and seven RBIs in his past eight at-bats.
4. Lake Zurich 21-9 (5)
Owen Strahl's walk-off hit seals the surging Bears' come-from-behind NSC win against Stevenson on Monday.
5. Highland Park 22-8-1 (4)
JT Killeen goes 3-for-4 with two RBIs in the Central Suburban North champion's eight-inning win against Wauconda on Monday.
6. Antioch 20-11-1 (7)
Tyler Johnson, who has been heating up, goes 2-for-2 with two RBIs, two runs scored and three stolen bases in the Sequoits' NLCC win over Round Lake on Monday.
7. Grant 16-13 (6)
Gavin Worklan's walk-off single gives the Bulldogs a win against Rolling Meadows, and then Logan Sledzik hits a grand slam in an NLCC win over Grayslake North.
8. Lakes 19-11 (10)
Nathan Mead strikes out six in 3 1/3 scoreless innings in relief to help the Eagles beat Johnsburg on Saturday.
9. Warren 18-13 (8)
Alex Kolcier pitches a five-inning shutout, striking out four, in the Blue Devils' win over Lake Forest Academy on May 15.
10. Wauconda 17-13 (9)
Jackson Rudolph and Jake Thorstenson each record two hits in the Bulldogs' loss to Highland Park.
Junior pitcher Andrew Mitchell throws a one-hitter with 10 strikeouts during Zion-Benton's 10-0 North Suburban Conference win against Waukegan on Monday.