Entries / Results Page:
http://www.isuresults.com/events/fsevent03111897.htm

The competitions start on 5th September 2019 at 13:00 EEST (10:00 GMT /  11:00 BST / 12:00 CEST) with the Ladies Short.

So, the deadline to get your predictions in is 1 hour before that, i.e. 12:00 EEST (09:00 GMT /  10:00 BST / 11:00 CEST)