In LMA, the "pitch" is your movement or practice area. For competitors, it's your competition space. Regardless of your activity, knowing your environment increases ease and improves Wayfinding.
Variables are unpredictable, so knowing the dimensions of your pitch anchors you to constants. The pitch can be an entire room, a mat space, or an informal space with no formal borders. We regularly assume an informal pitch during outdoor or group classes—martial arts, group fitness, meditation, yoga, etc.