The landmark figure comes just two months after the site was opened as one of two vaccination hubs in Lincolnshire.
Rebecca Neno, Deputy Chief Nurse for NHS Lincolnshire CCG, has been involved with the vaccination roll out from the planning stage onwards, and described the achievement as “phenomenal”.
It comes as the whole county comes close to reaching 400,000 first dose vaccinations administered in total.
“We are well on our way to ensuring our population is protected,” said Rebecca.
“I am in awe of the staff that work here at Princess Royal. I remember this vividly being an open sports hall and I remember thinking to myself ‘Oh my gosh’ at the effort ahead to turn it into a vaccination centre.
“This has been a true collaborative effort across the NHS, across our voluntary services, across our county council and across the Lincolnshire Resilience Forum coming together to really set up the site and start delivering.”