When in September are most 5K races held?
The busiest weekend in Delaware is September 26 and September 27, with 5 5K races on those two days, and the single busiest day is Sunday, September 27 with 3. Every one of them is on a Saturday or a Sunday.
Race calendar · September 2026 · Delaware
September 2026 5K Races in Delaware
Every 5K in Delaware in September 2026, all 5 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
5 5K races in September 2026
By the numbers
The Biggest and Longest-Running
The September 5K races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
September 5K Races by City
Soonest 5K Races in September
5 total Sat, Sep 26, 2026Vet Fest Middletown, DEFrom $40Details Sat, Sep 26, 2026Hope 4 The Homeless 5K Supporting Sojourners' Place Wilmington, DEFrom $35Details Sun, Sep 27, 202616th Annual Faithful Friends 5K & Mutt Mile Wilmington, DEFrom $30Details Sun, Sep 27, 20265th Annual Friends 5K Run/Walk Newark, DEFrom $35Details Sun, Sep 27, 2026Nurse on the Run 5K Dover, DEFrom $35Details
Common Questions About Running a September 5K in Delaware
When should I sign up for a September 5K?
As early as you can. 4 of these September 5K races already have a price increase on the calendar, and 5 are open for entry right now.
How much does a September 5K cost to enter?
The typical entry is $35, with paid entries running from $30 up to $40. Entry fees climb as race day gets closer, so the same race is usually cheapest the week it opens.
5K Races in Other Months
August and October sit either side of September, which is where most people look next when a date does not fit.