Any undertaking that is easy to do WordNet 3.0 & Open English WordNet

A walkover, also W.O. or w/o, is awarded to the opposing team/player etc, if there are no other players available, or they have been disqualified, because the other contestants have forfeited or the other contestants have withdrawn from the contest. Wikipedia

Winning a contest by default Wikipedia Disambiguation

contest automatically awarded to the winner(s) due to absence, disqualification, or withdrawal of all other competitors Wikidata

Any activity that is easy, not testing or difficult. Wiktionary

Activity that is easy. Wiktionary (translation)

Something that is very easy to do. Wiktionary

The cry used in a game of snap when winning a hand. Wiktionary

A bye or victory awarded to a competitor when a scheduled opponent fails to play a game. Wiktionary