I found these excellent impressions of Bobcat tracks in a culvert near a small subdivision in Frisco, Texas. These track were over 2in/5cm across, which means we are dealing with a relatively large Bobcat here.
I have also included a side-by-side comparison with a Coyote track found in the same area. Key differences are the shape of the heel pad, the shape and spacing of the toes, and the inclusion of claw marks on the tracks of the Coyote. Bobcats have retractable claws and therefore their tracks usually lack any indication of them.