Kyle Langford's World Championship fate is now in the hands of the selectors after Watford's rising track and field star produced an outstanding run in the Olympic Stadium this afternoon to achieve the 800m qualifying time for next month's global showdown in China.

Having already won the British senior title and the European Junior crown this month, the Shaftesbury Barnet Harrier took on a field including London 2012 gold and silver medalists David Rudisha and Nijel Amos at the Anniversary Games with the target of getting the 1.46.00 qualifying time necessary for the Beijing championships.

Not only did the 19-year-old achieve this by finishing seventh in 1.45.78 - slicing more than a second-and-a-half off his previous personal best of 1.47.41 - he also became the third fastest British junior ever in doing so and is now just one hundredth of a second behind Steve Ovett on the all-time list.

Although he won the British title, which doubled as the World trials, and now has the qualifying time, Langford is not certain of his place on the plane because he hasn't been sub-1.46 twice.

BBC Sport's Phil Jones suggested Langford will surely be on the plane to Beijing and observed that while the selectors are sometimes reluctant to send young athletes to two championships in quick succession, Langford would be keen to do both.

The Garston resident replied confidently: "I've not really raced too much this season. I've been really careful with my races. I'm just trying to be clever so I can do so many championships; I'm a championship runner, not a time trialer, as I run better in a championship race.

"It's a dream come true for me to get the time because hopefully they'll pick me because I am better in the championships because I think it really counts."

Another person who is confident Langford will get the nod for Beijing is Michael Rimmer. Having already achieved the qualifying time, the 29-year-old made sure of his place in the British time by finishing just ahead of his countryman in fifth place in 1.45.67.

Describing Langford as "unreal", Rimmer told BBC Sport: "It's good to have two of us in the champs. It's not really that exciting when you're on your own so it's good to have another Brit with me."

Although the occasion and the calibre of the opposition might have got to others, the former Francis Combe student again looked calm throughout the experience. He appeared relaxed at the start and again raced with maturity and tactical awareness, biding his time towards the back of the field for the most part before making his main move off the final bend to overtake some of his rivals in the home straight to finish strongly.

Up front, the two biggest names currently in two-lap running were having their own battle in the closing stages. Once again this year it was Amos (1.44.57) who prevailed over Olympic champion Rudisha (1.44.67), who is still working his way back towards trying to recapture the brilliant form that saw him win London 2012 in a world record time.