She is a runner.

He is at the head of runners.

He did his best but soon saw that he could not compete with such a fast runner.

The two runners reached the finish line at the same time.

The runner had reached the halfway mark.

The runner was called out at third.

Some runners drink water as they are running.

Even the fastest runner in the world cannot run if he is hungry.

I am the fastest runner.

Five runners reached the finals.

A runner must pass the baton in a relay race.

The runner has firm muscles.

The runner got a good start.

The runner stole third base.

I wonder which of the runners will come first.

It is impossible to catch up with the fast runner.

The runner jumped over the hole in the ground.