 Duckworth then competed in the 2013 Nature's Way Sydney Tennis International losing to compatriot Samuel Groth in the quarterfinals 6–7(2), 6–7(5).Duckworth reached the second round at the 2013 All Japan Indoor Tennis Championships after defeating Jose Rubin Statham 6–4, 4–6, 6–3.He went down to second seed Marco Chiudinelli 6–7(5), 7–6(7), 2–6.