prize ring

WordReference Random House Unabridged Dictionary of American English © 2025

prize′ ring′, 

1. Sport a ring where prizefights take place;
   boxing ring.
2. Sport the sport of prizefighting.
• 1815–25

Collins Concise English Dictionary © HarperCollins Publishers::

prize ring noun

1. the enclosed area or ring used by prizefighters
2. the prize ring ⇒ the sport of prizefighting