Constantin Ursu enters as the clear favorite in this welterweight title defense due to his undefeated professional record, recent unanimous decision wins over Owen Cooper for the British belt and Ryan Amos for the Commonwealth strap, and superior physical attributes including a three-inch height advantage. Vaughan, despite a solid regional title background and southpaw style, brings a 12-2 ledger with prior majority-decision losses in higher-stakes European and English title bouts. Trader consensus at 99.5% for Ursu reflects the significant gap in experience, power, and current form heading into the O2 Arena contest. Even at such lopsided implied probabilities, late scratches from injury, an unexpected cut forcing a doctor stoppage, or a rare counter-punch upset remain the primary variables that could still shift the result in combat sports.