On the first day of the 2014 European Junior Swimming Championship, that is taking place in Dordrecht, Holland, Greece’s Apostolos Christou broke a Junior World Record in the 100 back semifinal.

Apostolos Christou broke a Junior World Record in the boys 100 back semifinals, going 54.41 to knock three tenths off the old record.

It should be noted that the previous record-holder was Italy’s Simone Sabbioni.