I think the best spot would be listed under your current world ranking on your team page.
Which isn’t even functioning for some micronations/ merged nations, if I‘m not mistaken. Maybe fix that problem first and then see about such a log. I like the suggestion, though. I‘m all for history and statistics.
Winner: 1x Consolation Tournament, 3x Bronze Medal (U21), 2x Goldene Ananas, 1x Goldene Himbeere, 2x Goldener Erdapfel