Settle
Weeks 1–2
Feb 8, 2027–Feb 21, 2027
Hold close to your current volume, establish the weekly rhythm, and make sure the opening load is honest.
12-Week Chicagoland Spring Marathon Training Plan
Schaumburg, ILMay 2, 2027
Start around February 7, 2027. The calendar below gives each phase a real date, then the course guidance shows where to make the build specific to Chicagoland Spring Marathon.
The Chicagoland Spring Marathon starts on Martingale Road in Schaumburg's commercial district and quickly trades office parks for the paved forest preserve path at Busse Woods. The whole race lives inside a 46 foot band of elevation, between 687 and 733 feet, which is about as close to a laboratory-flat marathon as American road racing gets.
- Race day
- May 2, 2027
- Start window
- February 7, 2027
- Runway
- 12 weeks
- Course
- Mostly Flat · Out and Back
- 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 Chicagoland Spring 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 22, 2027–Mar 28, 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 29, 2027–Apr 18, 2027
Complete the most race-specific long runs, rehearse fueling, and practice the terrain that will decide the final 10K.
Taper
Weeks 11–12
Apr 19, 2027–May 2, 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 Chicagoland Spring 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 the Chicagoland Spring Marathon
Train for the Chicagoland Spring Marathon on genuinely flat ground and practice holding one pace when nothing prompts you to change it. Rolling routes hide a lack of pace discipline because the terrain does the pacing for you. On a course with 470 feet of climbing all day, your watch and your legs are the only feedback you get.
Two specific sessions matter. Run long runs on a paved path rather than rolling roads, and inside them insert deliberate surges and cadence changes every few miles, because varying your stride on purpose is the only way to give your calves and hip flexors a break on a course that will not. Then rehearse the early clock: the organizers pull anyone who has not reached mile 5 by 8:25 a.m. off the marathon and into the half. From a 7:15 start that is 70 minutes for five miles, so a casual first hour is not an option here. Stride matches you to one of 14 marathon plans built on the most proven training methodologies in the sport and maps every week from today to race day.
Chicagoland Spring Marathon course facts
- Course
- Out and Back · Mostly Flat · Road/Pavement
- Elevation gain / loss
- 470 ft gain, 470 ft loss
- Highest / lowest point
- 733 ft / 687 ft
- Marathon finishers
- 534 in 2026 (small field)
- Boston qualifier
- Certified Boston qualifying course
- Finishers running a qualifying time
- 9.2% in 2026
- Typical race morning
- 54°F at the start, 77% humidity, mostly cloudy
- Race day high / low
- 66°F / 46°F on average
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 May 2, 2027.
12-week Chicagoland Spring Marathon plan questions, answered.
When should I start a 12-week Chicagoland Spring Marathon plan?
The 2027 Chicagoland Spring Marathon is scheduled for May 2, 2027, so the 12-week window opens around February 7, 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 Chicagoland Spring 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 Chicagoland Spring 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 the Chicagoland Spring Marathon on genuinely flat ground and practice holding one pace when nothing prompts you to change it. Rolling routes hide a lack of pace discipline because the terrain does the pacing for you. On a course with 470 feet of climbing all day, your watch and your legs are the only feedback you get.
What if the 12-week Chicagoland Spring 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 flat is the Chicagoland Spring Marathon really?
Genuinely flat. The entire course sits between 687 and 733 feet, a 46 foot band, with roughly 470 feet of total climbing across 26.2 miles. There is no hill worth naming. The difficulty is the opposite problem: unvarying terrain that loads the same muscles identically for the whole race.
Is the Chicagoland Spring Marathon a good Boston qualifier?
Yes. The course is USATF certified and Boston eligible, and it has no net elevation drop, so the BAA's downhill index does not apply. About 9.2 percent of 2026 finishers ran qualifying times, after 8.4 percent in 2025 and 9 percent in 2024, which is a solid rate for a flat spring race.
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.