Michael Diamond has declared himself as fit - if not fitter - than he was when he won gold at the 2000 Sydney Olympics ahead of his last-ditch bid for a ticket to Rio.
The veteran trap shooter has ramped up his training in the lead up to the final qualification event, the Australia Cup 2 in Sydney starting on Friday.
In addition to extra shooting sessions, the 43-year-old has been hitting the gym five days a week - driven by the prospect of a seventh straight Games and a crack at being Australian team flagbearer.
"I'm super incredibly fit," Diamond told AAP.
"I'm at the same weight, and probably stronger, than I was when I was 28 winning the Olympics in 2000."
Diamond won gold in the men's trap event in Sydney and also at the 1996 Atlanta Games.
While he secured Australia a spot for this year's Olympics, he is yet to formally qualify.
A score of 122 out of 125 or making the final this weekend will likely earn him automatic selection, otherwise he'll have to rely on Shooting Australia to pick him.
But Diamond doesn't want to leave it to chance, intent on making the team convincingly to put paid to any doubters.
"I don't want people to think that because I'm 43 that I'm too far gone. That's not the truth," he said.
"In our sport, we're able to keep going until our eyesight diminishes, because once that goes your reflexes slow down.
"My eyes are still fairly good, my reflexes are as good as they were, and my condition is as good as ever."
Just two spots are up for grabs in the men's trap, with plenty of competition.
As well as Olympic bronze medallist Adam Vella, Diamond will have to contend a rising crop of youngsters led by 16-year-old Mitchell Iles.
The Victorian is the only Australian to have twice shot 122 targets from 125 in the last year, most recently in February at the Qatar Shotgun Open.
And it's given him the confidence to go head-to-head with the likes of Vella and Diamond.
"If you can't beat them, you're not going to win it once you get over to Rio," said Iles, who is coached by his grandfather and trap shooting legend Bill.
"I'd like my family to see me get there."
But Diamond isn't frightened by the new generation.
"I don't look at other people when I compete; it's my own race and I run it beautifully sometimes," he said.