For the second week in a row, Calvert Hall (Md.) enjoyed success that greatly affected the National Top 25 as well as the Mid-Atlantic rankings. Delbarton (N.J.) also gained momentum with an encouraging opener to claim a spot in the Mid-Atlantic.
IMG Academy (Fla.) jumped a couple of spots in the South, and Cherry Creek (Colo.) was the big mover in the West.
See how this week's Top 10 updates for high school boys' lacrosse in the Mid-Atlantic, South, Midwest and West regions changed, complete with recaps of the teams' recent and upcoming action. Northeast updates will start next week.
Compiled by USA Lacrosse writers with input from coaches around the country, rankings and records reflect results as of previous Sunday.