[6] Antill first made state selection for the Australian Capital Territory in their 2015 men's eight competing for the King's Cup at the Interstate Regatta.

[8] At the 2017 Australian Championships he won the open men's quad scull national title rowing with Luke Letcher, Hamish Playfair and David Watts.

[14] With Antill in the bow seat that crew placed third in their heat and then in the repechage went out hard and alongside New Zealand they surprised the Lithuanian world champions knocking them out of the final.

In the final the Australian quad rowed through most of the field from the 1000m mark and finished in second place to Italy for a silver world championship medal.

[14] Antill and David Bartholot were selected to race Australia's double scull at the 2019 World Rowing Championships in Linz, Austria.

[14] Antill and Cleary were selected as the Australian men's double scull for the 2022 international season and the 2022 World Rowing Championships.

[19] Racing with Cleary in the double Antill won bronze at the World Rowing Cup II in Poznan and then with David Bartholot he took silver at the WRC III in Lucerne.

[22] At the Rowing World Cup II in Varese, Italy with Campbell Watts and Cormac Kennedy-Leverett they raced as Australia's M4X entrant.

[14] At the 2023 World Rowing Championships in Belgrade Serbia, Antill, Youl, Bartholot and Cleary were selected to race Australia's quad scull.