Trinity School sponsors an athletics program for all students at all grade levels. Currently the following sports are offered:
Girls: volleyball, soccer, cross-country, tennis, basketball, softball, badminton and track and field.
Boys: soccer, cross-country, basketball, wrestling, baseball, golf, lacrosse and track and field.
High School Math League
The Minnesota State High School Math League Team is for grades nine through twelve. The group meets weekly beginning in late September to work on problems. The team competes at five meets in a league with other area schools. The meets occur monthly from November to February. Students compete in two of four levels and also as a team. The levels correspond to algebra, geometry, trigonometry and algebra II/math analysis. A state tournament is held in March.
7th & 8th Grade Math League
For students in seventh and eighth grades, Mathcounts provides challenging problems at weekly meetings starting in late October. They compete in a regional competition in February. Mathcounts is a nationally sponsored competition.
Junior High and High School Robotics Teams
Members of the teams learn how to build and program robots in accordance with a predetermined annual theme. They also participate in a team competition and a judged presentation at the end of the season.
Open to 9th-12th graders, the One Act Play is an MSHSL sanctioned competitive program. Students typically begin working on a production before Christmas Break, mounting a show that must be less than 35 minutes in length and able to be set up on and struck from the stage in 10 minutes or less. The first round of competition is sub-sections in mid-January. Two out of the past three years Trinity has advanced to the section finals in late January. The section winner advances to the State Finals in early February at O'Shaughnessy Auditorium, St. Catherine's University, St. Paul.
Vocal and Instrumental Music
Trinity School offers a variety of extracurricular music opportunities for students. These include Chamber Singers, String Ensemble, Wind Ensemble and Jazz Ensemble.
Interested students design the Trinity School at River Ridge yearbook, under the guidance of a faculty advisor.
Other clubs or activities may begin at any time.