Starts: Friday, 27 July
Devonish is the British number one over 100m this season
Ends: Sunday, 29 July
Venue: Manchester Regional Arena
Live coverage on BBC One (Sat: 1635-1755 BST) and BBC Two (Sun: 1715-1930) and Radio Five Live (Saturday from 1300 and Sunday from 1500).
Pre-race favourite Marlon Devonish defended his 100m crown at the UK Championships and World Trials.
A strong headwind made times largely irrelevant but the 31-year-old finished well to clock 10.31 seconds ahead of Craig Pickering and Mark Lewis-Francis.
"It was all about positions and I'm happy to defend my title because I've worked hard," Devonish told BBC Sport.
Jeanette Kwakye edged out Laura Turner in a tight women's 100m final which saw both clock 11.59.
Kwayke's dip on the line gave her the title while defending champion Joice Maduaka, who was chasing a 13th national title, was third in 11.68.
Pickering will be expecting to join Devonish in Osaka while Mark Lewis-Francis, who has been battling a leg injury, has an outside chance.
"Just to make the team alone would be enough for me," Lewis-Francis said.
Jason Gardener, who finished fourth, hinted again that this could be his last outdoor season.
Heptathlete Jessica Ennis pipped specialist Sarah Claxton to the 100m hurdles title, winning in 13.25.
The Commonwealth bronze medallist then made it a double success, winning the high jump title ahead of fellow heptathlete Kelly Sotherton with a jump of 1.87m.
European indoor champion Nicola Sanders, whose progress this summer has been held up by an Achilles injury, kickstarted her outdoor season by claiming the 400m title in 51.33.
Sanders was followed home by 34-year-old Donna Fraser, who hopes to go to Osaka as part of the relay squad.
Tomlinson is back to his best this season in the long jump
Chris Tomlinson claimed the UK long jump title for a second time with a leap of 7.99m ahead of Nathan Morgan.
The 25-year-old set a new British record of 8.29m in Germany earlier this month which qualified him.
Morgan and European silver medallist Greg Rutherford, whose season has been blighted by injury, must wait.
In the following 110m hurdle race, Andy Turner delivered a dominant display to defend his UK crown in 13.54, good enough to qualify.
There were also encouraging performances from Michael Rimmer, Dale Garland, Steve Lewis and Katrina Wootton.
Liverpool's Rimmer controlled the 800m, cruising across the line in one minute 47.06 seconds to win clear ahead of Richard Hill and James Brewer.
Former decathlete Guernsey's Garland won the men's 400m hurdles in a new personal best of 49.79, which puts him in contention for Japan with the 'B' qualifying standard.
Lewis also sneaked the 'B' standard as he went over in a lifetime best 5.61m to claim pole vault honours.
"I think I have a good chance of getting selected but I've no idea," Lewis told BBC Sport afterwards. "Please pick me."
Wootton unleashed a fast finish on the final bend to deny race leader Charlene Thomas and claim the 1500m title in 4:09.57 - just inside the 'B' standard.
In the javelin, Goldie Sayers broke her own stadium on her way to a fourth UK title and a place at the Worlds with a throw of 63.02m.
Carl Myerscough remained imperious in the shot, taking the title with a throw of 19.39m.
Andy Frost claimed the hammer title with a throw of 71.02m while Emeka Udechuku landed a third discus crown as he reached 60.83m. Both distances put them well outside reckoning for the Worlds.
The championships are being held in Osaka, Japan from 25 August to 2 September.
The first two athletes home in each event who reach the required qualifying standard will be selected. The selectors can also offer a third place at their discretion.
If an athlete reaches the 'B' standard then they will only be chosen if they have the potential to reach a final or if they are up-and-coming athletes who are expected to perform well at future championships.
However, UKA performance director Dave Collins has laid down tough standards and the team heading for Osaka could be smaller than expected.
UKA's new chief executive Nils de Vos has set a target for Osaka of 14 finalists and three medals.