center field

cede the field

To withdraw from any confrontational or potentially confrontational situation; to avoid participating in a competition or contest.

dead center

The exact center.

debris field

Any area, non-dependent of locale, space, or contour, that contains the debris of wreckage, impact, sinking, or other material that once constituted a complete object. Debris fields can be found at the site of air crashes, water vessel sinking, explosions of buildings, collapses, and other events that render a whole entity into components, pieces, or other non-whole items.

field day

A great time or a great deal to do; a period of bustling activity.

front and center

A command to approach the center of attention of an assemblage, as of military personnel or students.

leave it all on the field

Used to remind players not to dwell on minor mistakes, issues or conflicts that happened during the course of play.

open field

A situation with no obstacles or limitations; a clear opportunity to act freely or without significant competition.

play the field

To have numerous romantic partners, without or before committing exclusively to one.