Biggest ELO upset win. Take it by beating the current holder's ELO-upset record.

Any verified winner can steal it with a bigger ELO upset.

Belts, national titles, ELO ladders, and tag titles pay a Reigning Tribute. Special designations pay an Artifact Bonus.

Giant Killer history starts when the first verified upset record is recorded.

Watcher/parser automation can call the title evaluation hooks after verified results without changing this route structure.