Race Calendar in Connecticut, United States near Marlborough

Lake Terramuggus Sprint Triathlon #3

Marlborough, Connecticut, United States

Jul 16, 2026 (Thu)

Lake Terramuggus Sprint Triathlon #4

Marlborough, Connecticut, United States

Jul 30, 2026 (Thu)

$35.00 - $65.00

Triathlon

23.1K 11.8K 18.2K

Lake Terramuggus Olympic Triathlon

Marlborough, Connecticut, United States

Aug 15, 2026 (Sat)

$105.00 - $135.00

Triathlon

Ultra 41.7K

Central CT Open Water Swim

Marlborough, Connecticut, United States

Sep 27, 2026 (Sun)

Free

Swimming

5K

Masquerade 5K

Marlborough, Connecticut, United States

Oct 25, 2026 (Sun)

$30.00

Running

5K

Lake Terramuggus Sprint Triathlon #2

Marlborough, Connecticut, United States

Jul 2, 2026 (Thu)

Triathlon

23.2K 11.8K 18.2K

Lake Terramuggus Sprint Triathlon #1

Marlborough, Connecticut, United States

Jun 18, 2026 (Thu)

Triathlon

23.1K 11.8K 18.2K

Marlborough Lions Club Round The Lake 5K

Marlborough, Connecticut, United States

May 24, 2026 (Sun)

Running

5K