in the zone

Just let yourself play, enjoying all of the feelings and sensations that come when you are in the zone.

2000, Donald R. Liggett, Sport Hypnosis, page 15

Athletes in these circumstances comment on the pain, but often refer to the experience as being "in the zone," a condition of distraction ...

2002, Robert C. Scaer, The Body Bears the Burden: Trauma, Dissociation, and Disease, page 94

Indeed, game researchers Bryce and Rutter (2001) reported that the feeling many gamers have of being in the zone (ie, totally engrossed, losing sense of time) is comparable to what athletes experience on the field.

2005, Curtis P. Haugtvedt, Karen A. Machleit, Richard Yalch, Online Consumer Psychology: Understanding And Influencing Consumer Behavior, page 184

These elements represent the essential features of optimal performances, which athletes have described as "hot," "in a groove," "on a roll," or "in the zone".

2006, Robert Stephen Weinberg, Daniel Gould, Foundations of Sport And Exercise Psychology, page 148

Seasoned runners speak wistfully of getting in the zone, of running as meditation or going into autopilot, powering through the miles.

2013 October 7, Tory Frost, “Going the distance: breaking through the boredom barrier”, in The Guardian, archived from the original on 29 Mar 2016