Although the most common way to win is a contest in which one side can win only if the other side loses, there is another contest in which both sides lose or both sides win.
When your goal is to improve your performance, the standard of excellence is your previous performance. If you can’t improve your performance, you . If you can improve, you win.
Likewise, if people from different sides want to defeat an impersonal opponent — such as a pandemic or racism or injustice or other enemy of collective well being — they are in a lose-lose/win-win contest. If the people from different sides can’t improve their ability to overcome the impersonal opponent, they lose together. If they can improve, they win together.