By more than 8,000 votes, the Reform leader won Clacton in Essex, overturning a 25,000 Conservative advantage.
Mr. Farage described the outcome as “the first step of something that is going to stun all of you” in a speech following the announcement of the results.
Not too long after, the Tories lost Great Yarmouth, Boston, and Skegness to Reform.
Prior to switching to Reform in March, Ashfield in Nottinghamshire was held by former Conservative MP Lee Anderson.
Reform, which was founded in 2018 as the Brexit Party, is not expected to gain any additional seats, according to the news.
The party was expected to win 13 MPs, more than several surveys during the campaign had anticipated, according to an earlier exit survey conducted for broadcasters.
The figure was highly questionable, though, as the model indicated that there are numerous locations where the party’s chances of victory are just marginally favorable.
“There is a massive gap on the centre-right of British politics, and my job is to fill it,” Mr. Farage said, directing criticism at the Conservatives.
After the results, he said to reporters, “this is the beginning of the end of the Conservative Party”.