The by-election on 8 October 2026, triggered by Sir Keir Starmer’s resignation, has shaped a contest where Labour’s Sagal Abdi-Wali and Green leader Zack Polanski dominate first- and second-place projections in the former prime minister’s safe seat. This leaves third place contested among Reform UK’s Peter Newman, Conservative Ewan Cameron, Liberal Democrat Patrick Stillman, Workers Party leader George Galloway, and several independents or minor-party entrants. Recent candidate selections, local council endorsements, and the split in anti-Labour left support have kept probabilities clustered, with trader pricing reflecting uncertainty over which smaller-party vote share will consolidate before polling day. Late campaign activity, differential turnout, or last-minute endorsements could shift the ordering among these contenders.