And those triumphs were supplemented by an individual bronze in the omnium on his home boards eight years ago, capping a scintillating career in the velodrome that's made him a British Cycling legend.
The 35-year-old has cherished his storied career and after postponing his retirement for a further tilt at Games glory, says it's that relationship with his team-mates that's spurring him on.
"I still feel motivated and I still want to do this," he said.
"Different things motivate you at my age, though - when you're 22 or 23 you want to go there, win, and celebrate the aftermath, but now I'm older I'm more interested in helping my team-mates.
"I view British Cycling as my family now - I feel a bit more responsibility and ownership for the success and the wellbeing of my team, even though I'm not in a position of power.
"That's a big part of my motivation these days, so I do feel motivated, but it comes from a different place and I try and be a good influence on my team-mates.
"Another 12 months isn't going to be a bad thing for British Cycling, and the dream is to go and win another gold medal."
Three Olympic golds, one bronze, 12 World Championship medals and a Commonwealth Games silver would probably be enough for most athletes to call it a day, but not the effervescent Clancy.
The Holmfirth-based star was initially due to retire after this summer's Games before the coronavirus-enforced postponement made him reassess his options, weighing up the choice between hanging up his lycra or eyeing up yet another Games success.
Clancy thought long and hard about the decision but concluded there was still life in the old dog yet, as he took to the Yorkshire roads in lockdown to remain fighting fit for sport's resumption.
That choice was the product of a couple of factors and Clancy is determined to go out on a high.
"I spoke to a lot of people about it just to try and gauge as many different opinions as possible, as the truth is, I just didn't know what to do," he added.
"It would have been a shame to have come this far, and I want to be part of the Games next summer as it would mark being back to normality.