 Duckworth's first title came in August 2010 at the Oceania Closed Championship held in Fiji, he beat fellow Australian Maverick Banes in the final.Out of the nine junior tournaments Duckworth entered in 2010 he managed to reach three finals that resulted in two titles won in Kuching, Malaysia and Manila, Philippines respectively.Duckworth's best junior result came at 2010 Roland Garros Junior Championships where he reached the semi-finals.