Meanwhile, Egon Van der Straeten (200 butterfly) and Fanny Lecluyse (200metres individual medley) both reached the semi-finals in their respective disciplines.
Kimberly Buys put in a sterling performance in the 100 metres backstroke.
She broke her own Belgian record to finish a very respectable tenth.
This was more than enough to earn her a place in the semi-finals.
The other Belgian competing in the race Jasmijn Verhaegen failed to make it into the semi-finals.