Jason Block (born December 28, 1989) is a Canadian competitive swimmer.[1] In 2016, he was named to Canada's Olympic team for the 2016 Summer Olympics.[2] References ↑ COC Profile ↑ "Calgary's Jason Block and Mackenzie Darragh of Oakville, Ont., have had their tickets to Rio officially punched in". www.swimming.ca/. Swimming Canada. 6 June 2016.