12-Week St. George Marathon Training Plan

St. George, UTOctober 3, 2026

Start around July 11, 2026. The calendar below gives each phase a real date, then the course guidance shows where to make the build specific to St. George Marathon.

St. George is one of America’s great point-to-point downhill marathons: buses carry you up into the high desert north of town before dawn, and the course drops roughly 2,500 feet back down to the finish through some of the most dramatic red-rock scenery in Utah.

Race day
October 3, 2026
Start window
July 11, 2026
Runway
12 weeks
Course
a 2,500-foot ride down the desert
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 St. George 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.

Settle

Weeks 1–2

Jul 12, 2026–Jul 25, 2026

Hold close to your current volume, establish the weekly rhythm, and make sure the opening load is honest.

Build

Weeks 3–7

Jul 26, 2026–Aug 29, 2026

Grow the long run and weekly work with step-back weeks intact. There is no room to repay missed mileage.

Peak

Weeks 8–10

Aug 30, 2026–Sep 19, 2026

Complete the most race-specific long runs, rehearse fueling, and practice the terrain that will decide the final 10K.

Taper

Weeks 11–12

Sep 20, 2026–Oct 3, 2026

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 St. George 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 guide

How to train for downhill

Eccentric strength is the whole game. If your buildup includes regular downhill running, meaning long-run segments on sustained descents and not just rolling terrain, your quads adapt and the course becomes the gift it promises to be. If it doesn’t, the wheels tend to come off around mile 20 no matter how fit you are.

Stride’s plans keep your weekly structure honest (long runs, recovery, step-back weeks) while you point the long-run terrain at what St. George demands. Pair that with practicing your fueling on tired downhill legs and you arrive ready.

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 October 3, 2026.

Build My Plan

12-week St. George Marathon plan questions, answered.

When should I start a 12-week St. George Marathon plan?

The 2026 St. George Marathon is scheduled for October 3, 2026, so the 12-week window opens around July 11, 2026. 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 St. George 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 St. George 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. Eccentric strength is the whole game. If your buildup includes regular downhill running, meaning long-run segments on sustained descents and not just rolling terrain, your quads adapt and the course becomes the gift it promises to be. If it doesn’t, the wheels tend to come off around mile 20 no matter how fit you are.

What if the 12-week St. George 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.

How long do I need to train for the St. George Marathon?

Most Stride plans run 12 to 20 weeks. St. George adds one wrinkle: your long runs should include real downhill running so your quads are ready for 2,500 feet of descent. Stride matches you to a plan, and every week is mapped from today to race day.

Is a downhill marathon easier?

It's faster, not easier. Downhill running loads your quads eccentrically, and 26 miles of it destroys unprepared legs, usually right around mile 20. Runners who train descents regularly get the speed without the collapse.

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.