An ostrich can run at a top speed of 43 MPH which is way faster than the average human can run.
A human can run at a top speed of around 28 MPH while an ostrich can run at around 43 MPH.
If you ever get into a race with an ostrich the ostrich will always outrun you as they are very fast and can also outrun a lot of other animals.
Ostriches are pretty good and gentle animals but if one chases you then you'll only be able to outrun the ostrich in a car or other vehicle.
You'll run out of breath long before the ostrich ever does.
Some ostriches can even reach a top speed of 60 MPH for short periods of time.