Delaware

Delaware Triathlon Calendar 2026-2027

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Monthly updates for Delaware

Get new running races (and updates) in your inbox every month.

Explore the best triathlons in Delaware for 2026-2027! Our updated list features 5 exciting races across the region. Find your next race in Delaware below and join the running community at these great events!

May 2026

Eastern Shore Sprint Adventure Race

Laurel, Delaware

Multisport

This 6-hour sprint adventure race returns to Trap Pond State Park. Participants will bike, trek, and paddle through scenic areas of the park. It offers strategic challenges for advanced racers while being accessible to newcomers.

This 6-hour sprint adventure race returns to Trap Pond State Park. Participants will bike, trek, and paddle through scenic areas of the park. It offers strategic challenges for advanced racers while being accessible to newcomers.

Bear Triathlon

Triathlon

A two-day triathlon at Lums Pond State Park offering Youth, Sprint and Olympic distances with individual and relay options. The event is USA Triathlon sanctioned and includes on-site packet pickup, transition protocols, course support and age-group a..

A two-day triathlon at Lums Pond State Park offering Youth, Sprint and Olympic distances with individual and relay options. The event is USA Triathlon sanctioned and includes on-site packet pickup, transition protocols, course support and age-group a..

July 2026

Dave Reynolds Biathlon

Rehoboth Beach, Delaware

Aquathlon

A beach biathlon at Rehoboth Beach combining a 1/2 mile ocean swim with a 5k run, plus a youth biathlon and a two mile memory walk. Chip timed and hosted by Seashore Striders and the Rehoboth Beach Patrol.

A beach biathlon at Rehoboth Beach combining a 1/2 mile ocean swim with a 5k run, plus a youth biathlon and a two mile memory walk. Chip timed and hosted by Seashore Striders and the Rehoboth Beach Patrol.

August 2026

Lums Pond Triathlon

Triathlon

Sprint and Olympic triathlons at Lums Pond State Park featuring rectangular freshwater swims, flat looped bike courses with all right-hand turns, and shaded forested run trails. USA Triathlon sanctioned with multiple race categories and relay options..

Sprint and Olympic triathlons at Lums Pond State Park featuring rectangular freshwater swims, flat looped bike courses with all right-hand turns, and shaded forested run trails. USA Triathlon sanctioned with multiple race categories and relay options..

September 2026

Coastal Traverse Adventure Race

Lewes, Delaware

Multisport

Coastal Traverse Adventure Race is a 12 hour, 60 miles event in Lewes, Delaware that combines biking, running, and paddling across beaches, marshes, parks, and coastal towns. Teams and solo racers choose multiple routes and optional checkpoints where..

Coastal Traverse Adventure Race is a 12 hour, 60 miles event in Lewes, Delaware that combines biking, running, and paddling across beaches, marshes, parks, and coastal towns. Teams and solo racers choose multiple routes and optional checkpoints where..