Robertson and Emms were always in control against the New Zealanders

Nathan Robertson and Gail Emms were too strong for New Zealand's Daniel Shirley and Sara Runesten Petersen as they won the mixed doubles title 21-17 21-10.

Earlier, Tracey Hallam claimed the women's singles gold after beating Malaysia's Mew Choo Wong 21-12 21-15.

The victory added to her 1998 bronze in Kuala Lumpur and her silver in Manchester four years ago.

I wanted that gold so badly and I'm so happy that we've both fulfilled our potential Nathan Robertson

Robertson and Emms trailed 4-1 in their first game and only led for the first time at 9-8, but eventually edged away to take the opener 21-17.

The Olympic silver medallists were quicker out of the blocks in the second game and a run of nine points put them in a commanding position.

The Kiwis had no answer to Robertson's power and Emms' touch at the net and Robertson sealed the gold medal with a thunderous smash to take the game 21-10.

Emms and Robertson's smash masterclass

Emms, who also took bronze in the women's doubles, said: "There was a lot of pressure on us as the number one seeds - everyone expected us to win easily.

"It was just a real relief to do it and we're delighted after missing out on the gold in Manchester four years ago."

Robertson added: "I wanted that win so badly and I'm happy that we've both fulfilled our potential and ambitions to get the gold."

I was just happy to keep it on the court and let her make the mistakes Tracey Hallam

Burton-on-Trent's Hallam was delighted to produce a dominant performance and said: "It's nice to finally get the gold."

The top seed had lost a tight three-set encounter to the same opponent in the mixed team competition.

But the singles final was a straightforward victory once the world number nine won 10 points in a row in the opening game, moving from 9-8 to 19-8 clear.

Wong rallied to win the next four points but Hallam closed out the game and put herself in the box-seat.

In the second game, the left-hander fought back from an early 2-0 deficit to win six of the next seven points.

She maintained the momentum and at 20-15 managed to see out victory when Wong hit long with a smash.

"I didn't think it was going to be that comfortable after the team event. I just kept the pressure on and didn't go for the lines," said Hallam.

"In the team event that was my weakness, it wasn't that I played badly, I just went for the lines too much and made errors.

"But today I was just happy to keep it on the court and let her make the mistakes.

"In the second set I thought she was going to come back at me but I think she froze a little bit."