So what do the bookmakers think about the chances of each of the 16 candidates come Thursday? Here are the latest odds courtesy of William Hill. Please note that prices may fluctuate.
5. 500-1: Chris Killick (Independent)
Mr Killick, who recently moved to Hartlepool, aims "to improve political discourse, trust and participation", adding: “If I am elected MP in Hartlepool I will help others and encourage success.” Photo: Other 3rd Party
6. 500-1: Claire Martin (Heritage Party)
Mrs Martin, who lives in Hartlepool, said her priorities include bringing services back to the University Hospital of Hartlepool, adding: ""People want to see a presence of police on the streets, and they want the cells open as well." Photo: Other 3rd Party
7. 250-1: David Bettney (Social Democratic Party)
Mr Bettney, a former solider who works in the oil and gas industry, says: “I’ll work night and day to make sure the Government delivers the investment and services that this town needs to prosper.” Photo: Other 3rd Party
8. 250-1: Rachel Featherstone (Green Party)
University lecturer Ms Featherstone says: "Hartlepool needs the kind of transformation that a Green recovery could bring. But, while other parties claim to be committed to such a recovery, real Green policies need real Green politicians with a clear vision." Photo: Other 3rd Party