Michael Lyddiard, a former combat engineer, was severely wounded during a deployment to Afghanistan, impressed most by winning gold medals in the men’s IT6 100 metres, 200m and 400m events at the York Lions Stadium.

The 40-year-old won the 100m in a time of 12.80sec with the United States’ Brad Snyder second in 13.65 and Great Britain’s Jamie Weller third in 14.63.

The 200m and 400m podiums were made up of the same three athletes in the same order.

Lyddiard triumphed in the 200m in 26.78, while Snyder claimed the silver medal in 28.16 and Weller took the bronze in 30.31.

In the 400m, Lyddiard finished first in 01min 2.99sec with Snyder second in 1:04.88 and Weller third in 1:11.74.

There was also success for Australia in the women’s IF4 discus competition, which saw Danielle Close prevail with a throw of 34.44m.

Compatriot Melissa Roberts rounded out the podium with 24.75m, while the US’ Kyle Burnett was the runner-up with 25.28m.

Another medal came Australia’s way in the men’s IT3 100m event as Nathan Parker secured bronze in 13.02.

Iraq’s Fadhil Razzaq was the winner in 11.77, ahead of France’s Alain Akakpo in 11.98.

Hosts Canada also had a productive day with Michael Clarke headlining by winning the gold medal in the men’s IT5 400m in 1:16.89.

France’s Sébastien Pradalier was the runner-up in 1:17.77, followed by the US’s Nate Dewalt in 1:18.59.

Clarke also placed second in the men’s IT5 200m and third in the men’s IT5 100m.

The 200m was won by Dewalt in 40.39 with Clarke taking the silver medal in 40.51 and Pradalier the bronze in 42.23.

In the 100m, Dewalt prevailed in 21.41 with fellow American Ryan Major second in 22.48 and Clarke the bronze medallist in 23.08.

Invictus Games founder Prince Harry spent a couple of hours at the York Lions Stadium, where he met with athletes and watched the competition unfold.

Wheelchair tennis open doubles pool matches also featured on today’s competition schedule.

The day’s opening match at Nathan Phillips Square saw Britain’s Kirk Hughes and Cornelia Oosthuizen beat Canada’s Pearce Bourassa and Kelly Scanlan 6-0.

One of the other nine contests pitted The Netherlands’ Jelle van der Steen and Ronald van Dort against New Zealand’s Darryl Burton and Stephen Fell.

The Dutch duo were trailing in the early stages, but by the third set the momentum changed and they went onto claim a 6-3 win.

"We have been playing tennis together for a few months now - a very short time," Van der Steen said.

Van Dort added: "We play wheelchair tennis well, but we are wheelchair basketball players.

"That is our sport and wheelchair tennis is our extra sport."