Sam Koloms helped lead Glenbrook South past Highland Park 1-0 Thursday in regional play with his bat and arm.
The Maine South baseball team beat St. Patrick 12-2 Thursday in the Evanston Regional semifinals.
The Glenbrook North softball team lost to Lake Zurich 5-4 in nine innings Thursday.
The Maine South softball team lost to Whitney Young 3-2 in the York Regional semifinals Thursday.
Here's a roundup of Thursday's regional baseball action.
New Trier is tied for second place and Deerfield is fifth after the first day of the state tennis tournament Thursday.
Six CSL girls lacrosse players will play in the US Lacrosse Women's National Tournament this weekend in Pennsylvania.