The inaugural World Star Challengers Invitational features 16 Tier 2 academy squads from LCK CL, LDL, EMEA, APAC, and Americas regions in a format with group-stage double round-robin best-of-ones followed by best-of-five single-elimination playoffs. Recent regional qualifiers produced a field of similarly regarded programs such as T1 Esports Academy, Bilibili Gaming Junior, EDG Youth Team, Dplus KIA Challengers, and KT Rolster Challengers, none of which have faced one another in prior international Tier 2 competition. Limited head-to-head data, comparable recent domestic form, and roster turnover typical of developmental squads keep implied probabilities tightly clustered near even money across the top contenders ahead of the September 20 start.