Settle
Weeks 1–2
Jan 18, 2027–Jan 31, 2027
Hold close to your current volume, establish the weekly rhythm, and make sure the opening load is honest.
12-Week Coastal Delaware Marathon Training Plan
Rehoboth Beach, DEApril 11, 2027
Start around January 17, 2027. The calendar below gives each phase a real date, then the course guidance shows where to make the build specific to Coastal Delaware Marathon.
The Coastal Delaware Marathon starts and finishes on the Rehoboth Beach boardwalk, which almost no American marathon does. It runs on the Sunday of the Coastal Delaware Running Festival in Rehoboth Beach, Delaware, goes off at 7:00 a.m., and is advertised by its organizers as a Boston qualifier on a flat, fast course.
- Race day
- April 11, 2027
- Start window
- January 17, 2027
- Runway
- 12 weeks
- Course
- flat, coastal and exposed
- Plan choice
- Current training
Does this window fit your starting point?
Use this window when your recent training is steady and the opening week will not be a mileage jump. If you are returning after a long break, twelve weeks is too little room to rebuild and peak at the same time.
- Your weekly mileage has been consistent for the last six to eight weeks.
- You have completed recent long runs and do not need to rebuild from three easy miles.
- You can protect the same number of run days from week one through race week.
- You are prepared to begin race-specific work early instead of using a long base phase.
The 12-week Coastal Delaware Marathon calendar
These dates define the job of each phase. Your current mileage, recent longest run, experience, goal, and available days still decide the actual workouts inside them.
Build
Weeks 3–7
Feb 1, 2027–Mar 7, 2027
Grow the long run and weekly work with step-back weeks intact. There is no room to repay missed mileage.
Peak
Weeks 8–10
Mar 8, 2027–Mar 28, 2027
Complete the most race-specific long runs, rehearse fueling, and practice the terrain that will decide the final 10K.
Taper
Weeks 11–12
Mar 29, 2027–Apr 11, 2027
Reduce volume, keep the routine familiar, and arrive on race day without trying to squeeze in one more big week.
Make the window specific to Coastal Delaware Marathon.
Course-specific work starts early in a 12-week build. Put the race's terrain and expected conditions into long runs once the opening weeks feel controlled, without adding extra hard days.
Read the full race guideHow to train for Coastal Delaware
Train for Coastal Delaware by making your long runs monotonous on purpose. A flat course rewards a locked-in cadence and punishes the small surges that rolling terrain normally hides, so run your long efforts on the flattest, straightest ground you can find and hold one honest pace rather than letting the road set it for you.
Then add wind. A sea breeze is the one thing on this course that can take a minute a mile off you, and the fix is specific: structure long runs so the headwind lands in the final third, on tired legs, rather than at the start when you can absorb it. Practice tucking in behind other runners too, because on exposed ground that's worth real time. And build a few late-race pace changes into the schedule so your legs arrive with more than one gear.
Let your current training decide the actual plan.
Current mileage, recent longest run, marathon experience, goal, and available days determine which plans rank first. After you choose and subscribe, Stride dates every workout through April 11, 2027.
12-week Coastal Delaware Marathon plan questions, answered.
When should I start a 12-week Coastal Delaware Marathon plan?
The 2027 Coastal Delaware Marathon is scheduled for April 11, 2027, so the 12-week window opens around January 17, 2027. Treat that as the outside edge of the window, then line week one up with the plan's normal weekly rhythm.
Is a 12-week plan long enough for the Coastal Delaware Marathon?
Use this window when your recent training is steady and the opening week will not be a mileage jump. If you are returning after a long break, twelve weeks is too little room to rebuild and peak at the same time. The course does not change the opening load you can handle, so choose from your current mileage and recent longest run before adding race-specific terrain.
How should I prepare for the Coastal Delaware Marathon course in 12 weeks?
Course-specific work starts early in a 12-week build. Put the race's terrain and expected conditions into long runs once the opening weeks feel controlled, without adding extra hard days. Train for Coastal Delaware by making your long runs monotonous on purpose. A flat course rewards a locked-in cadence and punishes the small surges that rolling terrain normally hides, so run your long efforts on the flattest, straightest ground you can find and hold one honest pace rather than letting the road set it for you.
What if the 12-week Coastal Delaware Marathon window has already started?
Do not double weeks or cram missed mileage into the remaining calendar. Use your current mileage, recent longest run, experience, goal, and available days to choose a plan that can enter at an appropriate point while preserving the taper.
Is the Coastal Delaware Marathon flat?
Yes. The organizers describe it as a scenic, flat and fast course, and it starts and finishes on the Rehoboth Beach boardwalk at sea level. Flat helps your clock, but it also means your stride never varies across 26.2 miles, so train for repetitive impact rather than for climbing.
Where does the Coastal Delaware Marathon start and finish?
On the Rehoboth Beach boardwalk in Rehoboth Beach, Delaware, with a 7:00 a.m. start on the Sunday of the Coastal Delaware Running Festival. Shorter distances run across the same weekend and finish in the same area, which makes it a practical race to travel to with non-running family.
Put the 12-week window against your actual race.
Each page counts back from race day, maps the 4 phases to real dates, and applies the window to that course and its typical conditions.