Happier persons/athletes are better performers. Simply because they are able to put things into perspective and, as a result, manage better potential high expectations that are a confidence killer for high performances. This means that both have to work ‘off’ court or office to enhance their well-being. Not only while practising their sport or working in the office. To be able to do so, they should recognise their feelings but also be disciplined enough to follow an action plan they set for themselves. That way, well-being will serve as tool for high performance.