In 1989, there was a one-off race around the world on public transport called the HumanRace (full disclosure my partner and I won that event in 17 days).
"If I run 9.9 in a one-off race, then I know I'm in better shape than I think I am.
In London, 55 athletes will compete in the men's and women's events and there are no heats - it is just a one-off race to determine the winner.
It was a third successive Hyde Park podium finish for Jenkins, who won the 2008 World Championships when it was still a one-off race.
The two big differences between a big one-off race like a Diamond League meeting and a World Championships are the lack of pacemakers and the need for rounds.
And while few current athletes have won so many one-off races on the annual circuit, it is defeats to the likes of Bahamas' Tonique Williams-Darling at the 2005 Worlds, Britain's Christine Ohuruogu at the 2008 Olympics and last year's seventh-place finish in Daegu that stand out.
"I may be all right in one-off races but in rounds I struggle a little more.
Williamson says he will run it "like it's Berlin" but admits that he still needs to improve in one-off races.
Nintendo's online offerings tend to flatter to deceive but here there's everything that could be wished for, outside of a more persistent element like rankings, perhaps – but then, Mario Kart's never really been about prestige so much as one-off races and clonking your mate with a red shell.
"I was extremely quick when running one-off races but my body couldn't cope with putting four world-class races together in championships.
Raikkonen has spent the last two seasons racing a Citroen in the World Rally Championship, where he had a career-best rally finish of fifth, and also competed in one-off races in the Nascar Truck Series and Nationwide Series.
