Answer: prelims

AnswerCrossword Clue
PRELIMS

Early matches, briefly

PRELIMS

Grad school hurdle

PRELIMS

Qualifying bouts, for short

PRELIMS
Fights before the main event, for short
PRELIMS
Qualifying bouts
PRELIMSMinor matches
PRELIMSThey're before the main event
PRELIMSTourney rounds
PRELIMSCertain boxing contests: Slang.
PRELIMSBouts before the finals, for short
PRELIMSStarts of tourneys
PRELIMSTourney starters
PRELIMSEarly rounds
PRELIMSQualifying rnds.
PRELIMSHeats with less buzz, perhaps
PRELIMSHeats
PRELIMSOlympics events rarely shown in prime time