DAVE Bishop arrived back in Britain this week having sent shockwaves through the British middle-distance running scene.

The 24-year-old from Chippenham, a former Hardenhuish School student, made a major breakthrough in California on Sunday as he clocked a stunning personal best of 3:37.51 in the Payton Jordan Cardinal Invitational meeting at Stanford University.

The time carved 3.28 seconds off his previous best of 3:40.79 that he set only the previous weekend and means that Bishop has now taken almost four seconds off his time for the metric mile in a year.

More significantly, his time is also inside the Olympic B standard of 3:38.0, putting him second in the UK rankings behind Andy Baddeley, who clocked 3:35.19 in the same race, and with a nod to the Commonwealth Games in two years, was the quickest time by a Scot for almost 20 years and the fifth-fastest of all time.

“I really thought I was in shape for something fast from about October time, but got a little unlucky indoors with illnesses seeming to pop up right around the races,” said Bishop.

“I was really knocking down some decent training though and (the week before) I ran a 1:52 last 800m to set a new PB which cemented it in my mind that I was ready.

“Obviously I’m very pleased I showed what I was capable of, but it wasn’t too much of a surprise. I have considered myself capable of running this sort of time for a while now.

“As far back as 2009 I ran 2:53 for a 1200m and in 2011 I ran 3:54 for 1600m in relays, which are both fairly comparable to a 3:40 or slightly quicker. It is just nice to finally get that raw time.”

Over the winter Bishop returned to Albuquerque, where he graduated from the University of New Mexico last year, having been offered a part-time coaching job. Both he and coach James Thie feel there is more to come and that the Olympic Games A qualifying mark of 3:35.50 is within reach before the trials next month.

Bishop said: “I have briefly spoken to James and he agrees with me that there are a few more seconds still to come as the race wasn’t a perfect one.

“Hopefully I can knock 2.01 seconds off, that would be perfect.“