While CrossFit workouts have a reputation for often incorporating barbells and boxes, they don’t have to be so technical. In fact, because CrossFit incorporates consistently varied workouts, you make a lot of progress (and burn a lot of calories) by occasionally changing up your routine and doing some CrossFit-style workouts at your local running track.

And while it’s always a little more convenient to train on a 400-meter track with lanes—racing spikes are optional—you don’t need fancy polyurethane to get a good workout. In fact, Kara Saunders (neé Webb), the second-fittest woman on Earth, prefers to run on a grass track about a mile from her CrossFit gym in Brisbane, Australia.

What you will need, though, is a little determination—because the following CrossFit track workouts are no walk in the park.