outdoor kendo match
Refers specifically to a kendo match held outdoors, often with a more casual or informal atmosphere than a formal indoor tournament.
Summer outdoor kendo matches are also a battle against the heat.
casual match; non-competitive match
Used in video game contexts for a match that is not part of a ranked or competitive ladder, often just for fun or practice.
I warmed up with a casual match before the ranked game.
Compound of 野 (の, 'field, outdoor') and 試合 (しあい, 'match, game'). The reading じあい is a rendaku form of しあい.