Complex sentence: Van Beilen received much attention for competing as a Canadian swimmer in the 2012 Summer Olympics, as a participant in the women's 100m and 200m Breaststroke categories, as well as the 4x100m Medley Relay.
Split into simpler sentences: Van Beilen received much attention for competing as a Canadian swimmer in the 2012 Summer Olympics. She competed in the women's 100m and 200m Breaststroke, as well as the 4x100m Medley Relay.