The 27-year-old will contest the 200 metre and 400m individual medley, and 200m butterfly at what will be his first Olympics and cannot wait for the games to get underway.
And the 6ft 2in swimmer is raring to go after a fantastic British Gas Swimming Championships in March, where he picked up two gold and one silver medal.
The Rotherham-born athlete is the only British male to book himself three individual swims at the Games and he is hoping to peak at the right time in his search for medal success.
“I’ve got three races in three events and if I can swim three PBs, whatever they bring is kind of a bonus after that. I’m just going to have three great performances, really, and see what that brings.”
A home Games brings its own pressures, with expectations of British athletes higher than ever.
But the Ian Armiger-coached swimmer insists he has had only positive encouragement from those around him.
“It’s possible that British Swimming is expected to bring more medals,” admitted Roebuck.
“I think we’re fielding the strongest team we have for a long time and the support from the media and fans who have sent messages have been really positive.
“My friends and family back home have been really good, so I think it’s more an encouragement thing than a pressure thing really.
“It’s been a bit of a pain trying to get tickets through the ballot and through British Swimming for my friends and family and all these different things, but they’ve been quite lucky compared to some other people with the amount of tickets they’ve got and I know they’re going to be there pretty much for all my races so it’s really good.
“That’s good to know and will spur me on, and they’ll be excited to watch from the stands.”