The tightly bunched probabilities around 50% for Iceland, Bulgaria, Estonia, and Luxembourg reflect a balanced League C4 group where no side holds a decisive edge ahead of the September 26 kickoff. All four teams enter with comparable recent results from European qualifiers and prior Nations League campaigns, limited squad depth differences, and similar home/away dynamics across the six-match round-robin. Early fixtures such as Iceland vs Estonia and Bulgaria vs Luxembourg offer immediate tests of momentum, yet traders view the promotion race as open because any result could shift the table dramatically given the small margins typical in these matchups. The wisdom of crowds in the market pricing underscores the absence of standout form or roster advantages that would separate the contenders.