From Longman Dictionary of Contemporary Englishringside seatringside seatDSAPa seat very near to the performers in a circus, a boxing match etc → ring → ringside
Examples from the Corpus
ringside seat• You've got a ringside seat.• Meg had a ringside seat to research her latest role as a tough boxing coach.• It was the first advertised air tour and the price included a ringside seat and hotel accommodation.• They were given ringside seats because of their devotion to Keiko. 