Day first made state selection for Victoria in 1993 to contest the President's Cup - the Interstate single sculls title within the Australian Rowing Championships.

[2] Day's national representative debut came in 1988 when he was selected as Australia's single sculls entrant for the 1988 Junior World Rowing Championships in Milan.

[3] In the 1992 Olympic year Day and Powell combined with Hamish McGlashan and Robin Bakker to row Australia's quad scull.

[3] Following a long post-Olympics break from national representation, Day along with Duncan Free, stepped back into the Australian quad in 1999 with Stuart Reside and Peter Hardcastle who'd been constant in that boat from 1998, to commence their Olympic campaign for Sydney 2000.

[3] They raced at a World Rowing Cup in 1999 and then at the 1999 World Rowing Championships in St Catharines they battled through the preliminaries placing third in their heat, winning their repechage, coming third in their semi-final (facing the ultimate gold and silver medalists Germany and Ukraine) and then repeating the semi-final result with a third place and a bronze medal in the final.

[3] Then in 2005 for the fourth time in his long national career he stepped back into the Australian quad scull, now with Craig Jones Chris Morgan and Trent Collins.