United Kingdom by-election records
Largest swings
¹ By-elections where the seat was held by the incumbent MP. ² By-elections where the seat was held by the incumbent party.

United Kingdom by-election records

Section Title: Largest swings
Table Section Text: ¹ By-elections where the seat was held by the incumbent MP. ² By-elections where the seat was held by the incumbent party.

Election	Swing	From	To

Bermondsey by-election, 1983	44.2	Labour	Liberal

Clacton by-election, 2014	44.11	Conservative	UKIP

Lincoln by-election, 1973	43.01	Labour	Democratic Labour

Hamilton by-election, 1967	37.9	Labour	SNP

Bradford West by-election, 2012	36.6	Labour	Respect

Christchurch by-election, 1993	35.4	Conservative	Liberal Democrat

Glasgow Govan by-election, 1988	33.1	Labour	SNP

Liverpool Edge Hill by-election, 1979	30.2	Labour	Liberal

Liverpool Wavertree by-election, 1935	30.0	Conservative	Labour

Fulham East by-election, 1933	29.2	Conservative	Labour

Dudley West by-election, 1994	29.2	Conservative	Labour

Brent East by-election, 2003	28.9	Labour	Liberal Democrat

Newbury by-election, 1993	28.4	Conservative	Liberal Democrat

Rochester and Strood by-election, 2014	28.31	Conservative	UKIP

Birmingham Hodge Hill by-election, 2004	26.72	Labour	Liberal Democrat

Dagenham by-election, 1994	23.12	Conservative	Labour

South East Staffordshire by-election, 1996	22.1	Conservative	Labour

Barking by-election, 1994	22.02	Conservative	Labour

Glasgow East by-election, 2008	22.6	Labour	SNP

Walsall North by-election, 1976	22.6	Labour	Conservative

Richmond Park by-election, 2016	21.73	Conservative	Liberal Democrat

Dudley by-election, 1968	21.2	Labour	Conservative

Ashfield by-election, 1977	20.9	Labour	Conservative

Sentence(s)

Conservative handed the seat to Labour, with a swing of 30%, in the 1935 Liverpool Wavertree by-election.

final_sentence: Conservative handed the seat to Labour, with a swing of 30%, in the 1935 Liverpool Wavertree by-election.