Greyson Sim

Defenseman

2028 Class

NY State

6'1" Height

Left Hand

Chaminade School

LI Express Chucks Club

Region Rank

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About Greyson

Greyson Sim is a 6'1" Defenseman in the 2028 class. Sim attends Chaminade in New York and plays club lacrosse for LI Express Chucks. Sim's Player Profile was created on July 30, 2026. Subscribe to Prep Lacrosse to see what our scouts have written about them.

Expert Analysis

Ty Xanders

Prep Lacrosse Scout

Similar to what I’ve written this week about several of his teammates, I can’t believe this is our first published evaluation of Sim, who pieced together an impressive rising junior summer. Undoubtedly benefiting from countless backyard reps with his Top 100 recruit and Notre Dame-bound brother, Brendan, Sim is a talented and tall lefty with considerable upside. He has high-level footwork to match up with some of the more renowned attackmen in the class, staying in position at all times without ever throwing home run checks, often jarring the ball free with a subtle poke or a simple slap. In addition, he’s excellent with the ball and has been known to make things in transition. After having a big year along with a number of talented 2028s on JV, Sim looks like he’s poised to compete for significant minutes at the varsity level.