Goldan in your case it was 3-way tie where Dirkules, Goldan and Jorrig all has one win and one loss in games between them. In that case the player with the better average percentage of the winning scores from the head-to-head games wins the tie.
Dirkules has score 276/276 + 183/187 = 98.9%
Goldan has score 22/22 + 225/276 = 90.8%
Jorrig has score 187/187 + 0/22 = 50%
nauxuyuh yes, it is a bug. I will report it to CGE and hopefully they will fix it in January (but not sooner).