The Greater Manchester mayoral election is a recurring event in which voters in the ten metropolitan boroughs of Greater Manchester, England, elect a mayor to lead the Greater Manchester Combined Authority (GMCA). The position was created in 2017 as part of the UK government's devolution agenda, giving the mayor control over transport, housing, policing, and economic development. The next election is scheduled for May 2026, and this prediction market focuses on which candidate will finish in second place. The first-place winner is expected to be the incumbent, Andy Burnham of the Labour Party, who has won both previous elections in 2017 and 2021 with comfortable margins. The race for second place is therefore the main contest, as it reflects the relative strength of opposition parties and potential future contenders. The electoral system uses the supplementary vote method, a form of ranked voting where voters express a first and second preference. If no candidate receives more than 50% of first-preference votes, the top two candidates proceed to a second round, where second-preference votes from eliminated candidates are redistributed. Second place is determined by the final round of counting, meaning the runner-up is the candidate eliminated last or receiving the second-highest total in the final count. This system adds complexity to predicting second place, as tactical voting and preference flows can shift outcomes. Recent developments include the growth of the Green Party in Greater Manchester, the decline of the Liberal Democrats in local elections, and the ongoing realignment of Conservative support. The 2024 local elections saw Labour gain seats across the region, while the Greens made gains in Manchester city itself. The Conservative Party is still the official opposition in many boroughs, but their vote share has fallen. The Liberal Democrats hold several council seats in areas like Stockport and Cheadle, but their mayoral candidate has never broken 10%. Reform UK, formerly the Brexit Party, has shown some strength in working-class areas but has not yet contested a mayoral election in Greater Manchester. Independent candidates, including former Labour figures, have also run, but none have finished higher than fourth. The second-place finisher in 2021 was the Conservative candidate, Laura Evans, with 30.3% of the final round vote. In 2017, the Conservative candidate also finished second, with 38.9% in the final round. The question for 2026 is whether the Conservatives can hold onto second place, or if the Greens, Liberal Democrats, or a new candidate can overtake them. The answer depends on candidate quality, national political trends, and local campaign effectiveness. People interested in this market are likely political analysts, local government observers, and bettors looking to understand the dynamics of UK devolved elections.

Historical Context

The Greater Manchester mayoral election was first held on May 4, 2017, following the Cities and Local Government Devolution Act 2016. The supplementary vote system was chosen to ensure the winner has broad support. In the inaugural election, Labour's Andy Burnham won with 63.4% of the final round vote, defeating Conservative candidate Sean Anstee, who received 36.6%. The Liberal Democrats finished third with 6.7% in the first round, and the Greens fourth with 4.9%. The second election in 2021, delayed by a year due to the COVID-19 pandemic, saw Burnham re-elected with 67.3% of the final round vote against Conservative Laura Evans (30.3%). The Liberal Democrats and Greens again finished third and fourth, with 7.1% and 5.6% in the final round, respectively. The 2021 election also saw an independent candidate, Nick Buckley, take 4.5% of first-preference votes, and the Brexit Party (predecessor to Reform UK) did not field a candidate. The 2024 local elections in Greater Manchester provided a snapshot of party strength: Labour gained seats in Bury, Oldham, and Rochdale, while the Conservatives lost ground in all ten boroughs. The Greens gained seats in Manchester, Salford, and Stockport, while the Liberal Democrats held steady in areas like Cheadle and Hazel Grove. These results suggest that the Conservatives' second-place position is not guaranteed, as the Greens are growing in urban areas and the Liberal Democrats have strong local bases. The supplementary vote system also means that second-place candidates can benefit from preference flows if they are seen as the main challenger to Labour. In both 2017 and 2021, the Conservative candidate was the clear second choice for many voters who did not support Labour, but this dynamic could change if a third party emerges as a credible alternative.