Mountainside
Triathlon Calendar near Mountainside 2026-2027
Monthly updates for Mountainside
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Explore the top triathlons near Mountainside for 2026-2027! We've gathered 10 exciting races in the area. Check out our detailed list below to find your next local race.
July 2026
A two-day triathlon in West Windsor Township offering Sprint and Olympic distances, individual and relay entries, and a USAT Para Series category with published entry fees.
A USAT-sanctioned one-day triathlon at Lake Mohawk Country Club in Sparta, NJ offering Sprint and Olympic courses for individuals and relay teams, lake swims with extensive lifeguard coverage, and bike and run routes through the lake community.
August 2026
A memorial triathlon and duathlon at Midland Beach featuring a calm 400 m swim, a closed flat 12-mile bike course on Father Capodanno Blvd, and a 3-mile boardwalk run, plus relay and aquabike options.
A Central Park duathlon on August 23 featuring two 2.2 mile runs and a 12 mile bike over two loops of the Park Drive, with an individual race and a team relay for two to three athletes.
September 2026
A sprint triathlon at Lake Hopatcong on September 12, 2026, featuring a 400 m swim, 12.5 mile bike and 3.1 mile run. The event supports the Hopatcong PBA and offers registration for solo and team entries.
At Rockaway Beach competitors swim in open Atlantic water, bike two flat six mile loops on the boardwalk, and finish with an out and back 3 mile run along the boardwalk. Relay and aquabike options are offered and no USAT license is required.
October 2026
A Central Park duathlon on October 4, 2026 offering solo and team formats, including a unique two-person boat relay that finishes on the Lake. Distances include 2.2 mile runs and 12 miles of cycling.
A Manhattan triathlon on October 10, 2026, with a Hudson River swim and a finish in Central Park. Formats include sprint, Olympic, aquabike options and relays; the event is USAT sanctioned and welcomes para-athletes.
November 2026
A fall duathlon in Prospect Park featuring a 2.1 mile opening run, a 10 mile three-lap bike, and a 3.3 mile final loop with about 140 ft of climbing. Post race barbecue and volunteer opportunities are available.
June 2027
A multisport weekend in Princeton on June 4 and 5 2027 featuring triathlons, a duathlon, an aquabike event and a youth clinic. Various race distances and age group awards are offered across events.