Depends on the camera. Some OOC Jpegs with AWB shot outdoors are spot on. Easy to batch and correct. Using grey card, meter, color checker all good until a cloud comes or you change direction. Also if athletes are at a distance.... challenging. If they are shooting tethered how do you know they are not correcting in the truck? Too many factors....Am I the only one surprised that the pros are using auto white balance? I can’t say I know anyone who’s sole income comes from photography, that uses auto white balance. I don’t shoot sports, or know anyone making a living shooting sports, so maybe it’s just a sports thing?