keep someone up to speed

If Badger's cab kept up its speed, it would outdistance the patrol car.

"I want to keep my speed up until I'm over the threshold."

She may not run at a faster pace, but she will keep up her speed for longer distances.

Twenty-eight hours, if we can keep up our best speed.

The key was for the F-4 to keep its speed up.

Still he kept up his speed, stayed in the same lane as the oncoming juggernaut.

"I need to keep my speed up," said Gilligan.

The second flight of four C-130's kept their speed up as they dropped toward the city.

If he could keep his speed up, they never would.

Fitzgerald turned toward the upset boat, kept his speed up.