Colgate University Athletics

High School
A 2026 graduate of La Salle College High School where he spent four years on the varsity rowing team...he competed in rowing from 2025-26 and earned recognition as the 2026 Outstanding Oarsman... as the stroke seat of the Lightweight 4+, he helped lead his crew to a PSRA City Championship and SRAA National Championship in 2026, along with a second-place finish at the Stotesbury Cup Regatta... helped secure second-place finishes at the PSRA City Championships in 2025 and 2023... academically, he earned his school’s Scholastic L Award for GPA all four years and was recognized as an AP Scholar with Honors. He was also involved in the Economics Club, Cooking Club, and Street Outreach.

Personal
Born: Martin Avner Mareiniss in Rydal, Pa.
Family: Parents are Alexandra and Darren Mareiniss… has one brother.