Shalloo first played hurling in his local area with the O'Callaghan's Mills club.
During a golden age for the club, he was part of the Clare SHC-winning teams in 1904, 1906, 1909, 1910 and 1918.
[2] Shalloo's performances at club level quickly earned him a call-up to the Clare senior hurling team.
He won a Munster SHC medal in 1914, before later lining out at full-back in Clare's defeat of Laois in the 1914 All-Ireland final.
[3][4][5] Shalloo died following a drowning accident at Kilgorey Lake near O'Callaghan's Mills on 14 June 1932, at the age of 46.