Ariarne Titmus marks anniversary with boyfriend at Australian Open date night after quitting swimming for love

Ariarne Titmus is living a new life away from the pool after finding love and retiring from swimming. 

And the four-time Olympic gold medallist stepped out for a glamorous date night with partner Mac Powell at the Australian Open in Melbourne on Sunday. 

The 25-year-old beamed as she put on a cosy display with her man before the pair sat down to take in a tennis match. 

Ariarne looked chic in a pale yellow mini dress with a halter-neck design and a low slung, oversized belt. 

She showed off her trim pins in the fitted number, adding a pair of white patent heels to the look. 

The swimmer carried a designer shoulder bag and added a smattering of gold accessories including dainty hoop earrings. 

Mac, who is a Melbourne-based investment analyst, was casually dapper in a white dress shirt and dark jeans worn with beige loafers. 

It was something of an anniversary celebration for the pair, as Titmus and Powell made their romance official at the Australian Open tennis last January. 

Ariarne dropped her career bombshell last year when she quit her swimming career with the vague explanation that 'some things in my life that have always been important to me are just a little bit more important to me now.'

She later clarified exactly what those things are: her new love Mac, and her family.

'In my personal life - and this was really the crux of the decision - you have to be quite a selfish person to be an athlete,' Titmus told News Corp.

'I've lived my life not caring that I never got to spend birthdays with friends or never being able to go to family events. But I wasn't willing to go back to the life where I made the decision to put my family second.'

She continued: 'I also met my partner right after the [Paris] Olympics. I wasn't willing to put that on the backburner.

'If I hadn't been Olympic champion or world record holder, this wouldn't be the decision I'm making.

'But because I can look at myself and know I've absolutely done everything you can in the sport, and winning more medals wasn't going to change the way I feel, it felt like the right time to step away.'

Titmus last year revealed that she has moved to the Victorian capital to be with her man.

'It just happened this week, new beginnings, a fresh start, a new chapter,' she said.

'Mac and I are living together. It was hard to leave Queensland, but I do have family in Melbourne and a lot of friends here who have moved from Tasmania.' 

Titmus has found work in television and is set to star in Channel Nine's upcoming reality series SHARK!

'I'm enjoying life and I really love working in the TV space... and hope to do that more,' she said.