Search

Athletics News, April 2, 2021

John O’Neill, Director of Athletics
April 2, 2021

Athletics Update: Mountain Biking Makes Its Debut

Mountain biking was introduced to Belmont Day seven years ago as a middle school club. The club met once a week and was limited to experienced riders who owned their own bike. Despite its success, the program remained an exclusive activity with limited participation. This year, under the leadership of second-year physical education and athletics teacher Alex Tzelnic, mountain biking has grown into a full athletics offering, and, like the rest of Belmont Day’s middle school sports, is open to all students regardless of experience or equipment.

This evolution of the offering began this fall when Tzelnic coordinated the purchase of a full fleet of 20 mountain bikes. With bikes available, Tzelnic introduced the sport into the fall Outdoor Adventures program, starting slowly on Claflin Field with skills courses and riding practice before heading onto the trails. This spring, mountain biking is a stand-alone offering for the first time in program history, and eighth graders took to the trails this week and are seeing some interesting sites near our campus. The accompanying photo was taken during a ride past a former hospital building in Waltham.

Congratulations to Coach Tzelnic and all of our mountain biking athletes.

BDS

May 1, 2026

Chicka-dee-dee-dee! Local birds are beginning to migrate back to the Gallery as year three of our school-wide birding project gets underway. Students throughout the school will help us to collect and visualize data representing bird calls detected by our Haikubox,…
A "mad scientist" leads an activity with two campers at April vacation camp

BDS

April 27, 2026

During April Vacation Week Camp, BDS transformed into a mad science lab where campers learned about volcanoes, earthquakes, and paleontology. They studied strawberry DNA and learned about watersheds in the outdoor classroom. A guest visit from Dr. Victor Von Doom (aka teacher…
BDS Athletics Update 1 04.17.26Web

By Stephen Marks, Director of Athletics |

April 17, 2026

This week provided a slightly quieter but equally meaningful stretch in our spring athletics season, as we balanced competition with the incredible eighth grade Capstone presentations and prepared to head into the April vacation week. On Wednesday, the varsity tennis…
Scroll to Top