From Longman Dictionary of Contemporary Englishrecord-holderˈrecord-ˌholder noun [countable] DSthe person who has achieved the fastest speed, the longest distance etc in a sport the world long-jump record-holder
Examples from the Corpus
record-holder• Rumours that the previous record-holder, Geoffrey Boycott, had his back to the play at the key moment remain unverified.• In track, only world record-holder Wang Junxia has had staying power since smashing world records in 1993. 16.• Dolan is the world record-holder in the 400.• Tom Jager, the world record-holder, swam in Lane 8. 