A decade - 10 years of golden summers - after he won his first world championship medal, Usain Bolt brings the curtain down on the greatest career athletics has seen on Sunday morning (NZT).
By 9am, the sport will have entered the post-Bolt era - an era without the most marketable commodity athletics has ever had.
After his shock defeat by Justin Gatlin in the 100 metres last Saturday, those in power at the sport's governing body can be forgiven for willing the Jamaican to bow out in style with one last gold medal.
It is the good news story they crave.
Much will be out of Bolt's hands. The Jamaican 4x100m relay team have been almost unbeatable since he arrived on the big stage, winning gold at the past seven Olympics and world championships.
But there is a sense that the Bolt storyline may have one final twist in its tail in London, where the Caribbean island's sprinters have repeatedly failed to impress.