The duo are part of the Great Britain team competing at the European Championships in Rostock.
The event opens on Tuesday, with Birch competing for the first time on Thursday and Dixon having to wait until Saturday for his 10m platform competition.
Birch, who like Dixon competed at the FINA Canada Cup Grand Prix in April, will take part in the women’s 10 synchro platform event, alongside Georgia Ward.
Dixon will be competing in the men’s individual 10m event before then heading straight off to Baku for the inaugural European Games.
Birch’s next major event after Rostock will be the World University Games in South Korea in July, where she will be joined by team-mate and fellow University of St Mark and St John’s student Rhea Gayle.