The local and European election counts will be taking place at the Richard Dunn Sports Centre (pictured) in Odsal and Keighley Leisure Centre. The sports hall at the Richard Dunn centre will be unavailable from 5pm on Thursday until Monday.
The whole centre will be closed from 9pm on Thursday, and all day on Friday.
It will be open as normal on Saturday but will then close again after 11am on Sunday to allow the European election count to take place. It will reopen on Monday.
Keighley Leisure Centre will be closed all day Friday, but open at the weekend and on Monday.
For details of specific changes to classes, pool programmes and gym opening times, visit bradford.gov.uk.