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Runs

What is this milestone?

Advanced walking skill

Your toddler transitions from a fast, stiff walk into a true run, with moments where both feet are momentarily off the ground.

Why it matters

Running requires significant strength, balance, and spatial negotiation. It drastically changes how they play and interact, allowing them to participate in more active games and burn off their abundant toddler energy.

What to expect leading up to it

Initial attempts at running look like a hurried, slightly out-of-control waddle. They may lean forward and have trouble stopping or turning quickly, leading to frequent tumbles.

How to encourage and support it

Take them to open, safe spaces like grassy parks where they can run freely without obstacles. Play games of tag or 'I'm gonna get you' to encourage them to practice stopping, starting, and changing direction.

When to talk to your doctor

The CDC's milestone checklists say what most children (75% or more) can do by each age. They list “Runs” by 2 years. If your child is not doing this by then, the CDC's advice is not to wait: talk with your child's doctor, share your concerns, and ask about developmental screening. The same goes at any age if your child loses a skill they once had, or if anything else about their development worries you. Source: the CDC's “Learn the Signs. Act Early.” milestone checklists, checked October 5, 2026.

CDC: Milestones by 2 years · CDC: all milestone checklists

Every child develops at their own pace, and the ages here are the CDC's general guidance — not a developmental screening. This article is not medical advice and is not a substitute for your pediatrician. If you have any concern about your child's development, talk to them.

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