You crossed the finish line. Now you're wondering whether those aches and pains are normal or something more.
Congratulations to everyone who completed the 2026 New York City Marathon! Whether it was your first marathon or your fifteenth, covering 26.2 miles is an incredible accomplishment.
But a few days after the race, the excitement may have been replaced by stiff legs, sore knees, aching hips, or difficulty walking down the stairs.
For many runners, these symptoms are a normal part of recovery. For others, they may indicate an injury that deserves attention.
So how can you tell the difference?
Why Does Everything Hurt After a Marathon?
Running a marathon places tremendous demands on your muscles, tendons, joints, and bones. Even well-trained runners experience significant fatigue following a race.
One of the most common causes of post-marathon discomfort is delayed onset muscle soreness (DOMS).
DOMS typically develops within 12–24 hours after prolonged exercise, peaks around 24–72 hours, and gradually improves over the following days.
During a marathon, your muscles repeatedly absorb and generate force with every stride. This is particularly demanding during downhill running, when your quadriceps work eccentrically to control your movement.
The result is temporary muscle damage, inflammation, and soreness as your body recovers.
But muscle soreness doesn't necessarily mean you've injured yourself.
What's Considered Normal Post-Marathon Soreness?
Although everyone's recovery looks different, ordinary post-race soreness often has several recognizable characteristics:
Generalized soreness affecting both legs, particularly the quadriceps, calves, and glutes.
Stiffness that's most noticeable after sitting or first thing in the morning.
Discomfort when descending stairs, squatting, or getting out of a chair.
Tenderness throughout larger muscle groups rather than one specific location.
Symptoms that gradually improve over several days.
One of the most reassuring signs is that your discomfort becomes progressively more manageable.
You might feel extremely sore on Monday or Tuesday, but by Wednesday or Thursday, everyday activities should begin to feel easier.
When Could Post-Marathon Pain Be an Injury?
Not every ache following a marathon should be dismissed as normal soreness.
While muscle soreness tends to be widespread and temporary, injuries often present with more localized or persistent symptoms.
Here are five warning signs worth paying attention to:
1. Pain in one specific location
Generalized calf soreness is common. However, sharply localized pain along the shin or top of the foot may raise concern for a bone stress injury.
2. Pain that changes how you walk
If you're noticeably limping, avoiding weight on one leg, or changing your walking mechanics because of pain, an evaluation may be warranted.
3. Symptoms that continue getting worse
Typical muscle soreness gradually improves after reaching its peak. Pain that becomes progressively more intense several days after the race is less consistent with ordinary DOMS.
4. Significant swelling or joint instability
Pronounced swelling around a particular joint, feelings of instability, or difficulty moving normally may indicate something more significant.
5. Pain that isn't improving
Some lingering soreness is expected, but pain that remains substantial after a week or continues interfering with everyday activities deserves attention.
These signs aren't definitive diagnoses, but they can help you recognize when additional evaluation may be appropriate.
Should You Rest Completely or Keep Moving?
One common misconception is that you should avoid all physical activity until every bit of soreness disappears.
In reality, gentle movement can be a useful part of recovery.
Easy walking, comfortable mobility exercises, and low-intensity cycling may help reduce stiffness and restore normal movement.
A few simple guidelines:
Keep activity comfortable. Mild soreness may be acceptable, but avoid movements that cause sharp or worsening pain.
Prioritize sleep and nutrition. Adequate recovery requires sufficient energy, protein, carbohydrates, hydration, and quality sleep.
Avoid aggressive stretching or heavy strength training early on. Your muscles have already experienced substantial loading.
Monitor your response. Increased pain or swelling later that day or the following morning may indicate you've done too much.
Remember, taking a few additional days away from running won't erase months of training.
When Is It Safe to Start Running Again?
There isn't a universal timeline for returning to running after a marathon.
Your training history, race-day effort, and recovery response all influence your readiness.
Rather than focusing exclusively on the calendar, consider whether you can walk comfortably, navigate stairs, and perform basic movements without significant pain.
When you return, start with a short, easy run rather than immediately resuming your normal mileage.
Pay attention to how you feel during the run and over the following 24 hours. Increasing pain or changes in your movement are signs to modify your activity.
The Bottom Line: Listen to Your Body, But Don't Fear Every Ache
Completing a marathon is a significant physical stressor, and soreness afterward is expected.
The key is understanding the difference between normal, temporary discomfort and symptoms that suggest your body needs additional attention.
Generalized soreness that gradually improves is usually part of recovery. Localized pain, worsening symptoms, significant swelling, or difficulty bearing weight may indicate something more.
Recover Today. Run Stronger Tomorrow.
At Cornerstone Physical Therapy & Performance, we help runners address injuries, improve strength and movement capacity, and confidently return to training.
Whether you're recovering from your first NYC Marathon or preparing for your next personal best, our goal is to help you stay healthy and keep doing what you love.
Still experiencing pain after race day? Reach out to Cornerstone Physical Therapy & Performance to schedule an evaluation and take the next step toward a confident return to running.
