Delaware

Delaware Triathlon Calendar 2025-2026

Name: PFC. Joseph "Dimps" Marquez Memorial 5K
Start: 2025-08-10
End: 2025-08-10
Location: Rehoboth Beach

Explore the best triathlons in Delaware for 2025-2026! Our updated list features 56 exciting races across the region. Find your next race in Delaware below and join the running community at these great events!

Delaware Triathlon Calendar 2025-2026

PFC. Joseph "Dimps" Marquez Memorial 5K

Rehoboth Beach Lifeguard 5k Run/Walk

I Thought You Said RUM

Middletown Olde-Tyme Peach Festival 5K

Broad Creek Bash 5K Run/Walk

Shuck Cancer 5K

Fire Fightin' 5K Run/Walk

Believe in Tomorrow 5K

Rusty Rudder 5K

Summer's End 5k

Running Under the Influence

Gary P. Lister Bottle & Cork Ten Miler

Gavin and Bryson Blount Memorial 5K

Great Human Race

DOCF Teal Ribbon 5K Run-Walk

Harvest Hustle 5k Run

Crushin' It for a Cure 5k

Ultra Trail DE

Hornet Hustle Fall Fest 5k

Faithful Friends 5K