Trader consensus on Polymarket heavily favors Plaid Cymru (70.5%) as the winner of the Wales Parliamentary election, interpreted as the largest party in the Senedd, with Reform UK (28.5%) as the main challenger, while incumbents Welsh Labour (0.7%) and others trail far behind. This reflects Welsh Labour's sharp decline following First Minister Vaughan Gething's July 2024 resignation amid a donations scandal and no-confidence vote, compounded by Eluned Morgan's leadership struggles and stagnant polls showing Labour at historic lows around 27% vote share. Reform UK's rise mirrors its national momentum from the 2024 UK general election, where it captured 16% in Wales despite no seats, while Plaid Cymru holds steady regional support in the proportional system. Recent September 2024 YouGov polls indicate tight races (Reform/Labour ~27%, Plaid 21%), but traders bet on Plaid's organizational edge ahead of the May 2026 vote; outcomes remain fluid amid potential further scandals or shifts.
Experimental AI-generated summary referencing Polymarket data · UpdatedWales Parliamentary Election Winner
Wales Parliamentary Election Winner
Plaid Cymru 71%
Reform UK 29%
Welsh Labour <1%
Welsh Conservatives <1%
Welsh Labour
1%
Plaid Cymru
71%
Welsh Conservatives
<1%
Reform UK
29%
Welsh Liberal Democrats
<1%
Welsh Green Party
<1%
Plaid Cymru 71%
Reform UK 29%
Welsh Labour <1%
Welsh Conservatives <1%
Welsh Labour
1%
Plaid Cymru
71%
Welsh Conservatives
<1%
Reform UK
29%
Welsh Liberal Democrats
<1%
Welsh Green Party
<1%
This market will resolve according to the political party that wins the greatest number of seats in the Welsh Parliament (Senedd) in this election.
If voting in the Welsh parliamentary election does not occur by December 31, 2026, 11:59 PM ET, this market will resolve to "Other".
In the event of a tie between multiple parties for the most seats won, this market will resolve in favor of the party or coalition which received a greater number of valid votes. In the event that results in a tie, this market will resolve in favor of the party or coalition whose listed abbreviation appears first in alphabetical order.
This market's resolution will be based solely on the number of seats won by the named party or coalition in the Welsh Parliament.
This market will resolve based on the results of this election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the Welsh government, specifically the Senedd Commission of Wales (https://senedd.wales/).
Market Opened: Dec 12, 2025, 6:22 PM ET
Resolver
0x2F5e3684c...Resolver
0x2F5e3684c...Trader consensus on Polymarket heavily favors Plaid Cymru (70.5%) as the winner of the Wales Parliamentary election, interpreted as the largest party in the Senedd, with Reform UK (28.5%) as the main challenger, while incumbents Welsh Labour (0.7%) and others trail far behind. This reflects Welsh Labour's sharp decline following First Minister Vaughan Gething's July 2024 resignation amid a donations scandal and no-confidence vote, compounded by Eluned Morgan's leadership struggles and stagnant polls showing Labour at historic lows around 27% vote share. Reform UK's rise mirrors its national momentum from the 2024 UK general election, where it captured 16% in Wales despite no seats, while Plaid Cymru holds steady regional support in the proportional system. Recent September 2024 YouGov polls indicate tight races (Reform/Labour ~27%, Plaid 21%), but traders bet on Plaid's organizational edge ahead of the May 2026 vote; outcomes remain fluid amid potential further scandals or shifts.
Experimental AI-generated summary referencing Polymarket data · Updated



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