This would be an option after you complete an attack. If you are attacked you can just save the event for it, but it would be nice to have the option to "save as event" after an attack. Then it would be put into your "saved events" and would be just like when you are attacked.
The event itself could say something like "You attacked ______ and won/lost [view]".
The event itself could say something like "You attacked ______ and won/lost [view]".