Lowther made his debut for Geelong in 1997, before making 30 of his 34 league appearances in 1998 and 1999.[3]
He was delisted by Geelong after not making a senior team appearance in the 2000 AFL season, but was redrafted again by Geelong with pick 71 in the 2000 AFL Draft,[2] making his final appearance in 2001.
Lowther joined Geelong as an assistant coach to the VFL team (Geelong reserves) in 2015, then in 2018 joined the AFL team as an analyst. In 2020, he joined the Geelong AFLW coaching team as an assistant coach, looking after the midfield.[5]
On 29 June 2021, Lowther was promoted to be the head coach of the GeelongAFLW team, replacing Paul Hood.[5][6]
^Robertson, Doug (20 February 2002). "MIDFIELD IMPORTS BOOST BLOODS' STOCKS BUT . . .Borchard warns of tougher year". Adelaide Advertiser. Adelaide, South Australia: Nationwide News Pty Ltd. p. 117.