Sir Chris Hoy advanced in fourth place and Jason Kenny in sixth in an astonishingly fast qualifying session for the men's sprint on day three of the Track Cycling World Championships in Melbourne.
With only one rider or team per nation per event permitted in August's Olympic track programme, Friday's sprint competition at Hisense Arena was the toughest of the year.
The regulations pit Hoy and Kenny - the 2008 Olympic champion and silver medal winner, respectively - against each other for the one British place.
Kenny - the defending world champion after inheriting the title following an anti-doping offence by Gregory Bauge, the 2009 and 2010 winner - was the last of the 53 riders to go and clocked 9.953 seconds.
Hoy, the penultimate rider to take to the boards, finished in 9.902secs as three Britons advanced to the 24-man first knockout round.
Matt Crampton (10.167) squeezed through in 23rd place, but Philip Hindes, the 19-year-old competing in his first World Championships and primarily in Melbourne for the team sprint, finished in 10.498 and was eliminated.
Remarkably 10 riders went under 10 seconds, with France's Bauge leading the way in 9.854. Robert Forstemann of Germany 9.873 was second fastest, with Bauge's compatriot Kevin Sireau, the world record holder, third in 9.893.
There were three Frenchmen, two Britons, two Australians, and two Germans in the top 10.