你好, Magy!
Word order in German can be a bit tricky, so the key is understanding the case system, and putting the separable verb back together:
Nominativ: Keiner
Dativ: (dem) Christian Adam
Akkusativ: diesen Rekord
Verb: nachmachen
“No one will match Christian Adam’s record anytime soon” or “This record of Christian Adam’s won’t be beaten so soon.”
Note: In the English version, it’s easier to put Christian Adam in the genitive. We could translate “nachmachen” more or less literally as “match” or “equal,” although we usually speak of “beating” a record in English -- which is clearly implied anyhow.