From Swimcalc FAQ's
The Qualification Times calculator provided by swimcalc provides a guideline only to gala qualification times. Before you fill in your gala entry form, you MUST consult the official qualifying times published by your gala promoter.
Swimcalc receives the qualifying times from various sources and our staff manually load them into our database. We're very careful and make every effort to check the data thoroughly, but there is always a chance that a mistake has crept into our data. If you find an error then we'd be extremely grateful if you notify us of the fault.