The 2027 Best Supporting Actor race remains wide open on Polymarket, with Paul Giamatti leading at 48.5% implied probability while Robert Pattinson sits at 9.2% and the rest of the field trails below 8%. Trader sentiment reflects the early timing, as 2026 releases like Giamatti’s A24 drama continue building awards momentum through established critical pedigree and historical voter patterns favoring veteran performers. Pattinson’s recent Venice buzz for Primetime and anticipated profile in Dune: Part Three provide counter-momentum, though guild precursors and festival reactions in the coming months will likely shift positioning before nominations lock in January 2027. The crowded slate underscores how supporting categories often reward late surges over early frontrunners.