From Longman Dictionary of Contemporary Englishbeyond doubtbeyond doubtCERTAINLY/DEFINITELYif something is beyond doubt, it is completely certain The prosecution must prove beyond reasonable doubt that the accused is guilty of the crime.put the game/result/match beyond doubt (=do something which makes it certain that a particular player or team will win a match) Ferdinand’s second goal put the game beyond doubt. → doubt
Examples from the Corpus
put the game/result/match beyond doubt• But, 10 minutes from time, Colchester finally put the result beyond doubt.• However, Singh put the result beyond doubt by taking a single off the next delivery.• Then up stepped Paul Simpson, to put the game beyond doubt with a blistering penalty. 