Pickering splashed through the puddles to win comfortably

The 20-year-old equalled his personal best with a time of 10.22 seconds to relegate Mark Lewis-Francis into second on a cold, wet day in Scotland.

Tyrone Edgar was third, while the veteran Jason Gardener was disqualified for a false start.

Pickering is now likely to be picked for the EuroCup on 23-24 June.

Highlights: Glasgow Grand Prix athletics

"That time is very good in the conditions, in fact very good in any conditions really," said Pickering.

"As an athlete you can't afford to be fazed by a false start by another athlete. It's a shame that it was Jason but it is an individual race.

"That was seen by the rest of the lads as a run for a spot on the team for the European Cup.

"I'm just hoping to continue my good form from the indoors and start to take it outdoors."

He and Lewis-Francis later provided one half of the British team which won the 4x100m relay in an impressive 38.83 seconds, beating a Great Britain B team into second.

Goldie Sayers scored the biggest victory of her international career in the women's javelin, claiming victory with a throw of 63.59 metres.

606: DEBATE Your views on Pickering's victory

The 24-year-old, who set a new British record a fortnight ago, beat a strong field that included the top three finishers at last summer's European championships.

Commonwealth triple-jump champion Phillips Idowu continued his dominance over Nathan Douglas by beating his rival by two centrimetres with a jump of 17.14 metres.

The 400m was won Gary Kikaya from Congo, who just held off a late challenge from Xavier Carter to win by 0.01 of a second in 45.25 seconds, while Wales' Tim Benjamin finished well off the pace in sixth in his first race of the season.

Jo Pavey also struggled in the women's 5,000m and could only finish fifth, well behind winner Vivian Cheruiyot.

Nicola Sanders confirmed her impressive indoor form with a dominant win in the rarely-run 300m, although her time of 36.65 suffered because of the appalling conditions.

Kelly Sotherton was top Briton in the long jump, finishing fourth with a leap of 6.28m.