Katarina Johnson-Thompson impressed at the British Indoor Championships by adding the long jump title to the high jump gold she had won on Saturday.
The 21-year-old, who set a British record in the high jump, won the long jump with a personal best of 6.75m.
Scotland's Laura Muir comfortably won the women's 800m to secure her place at the World Indoor Championships.
Olympic bronze medallist Robbie Grabarz made it back-to-back titles in the high jump thanks to a 2.24m effort.
There was controversy in Sheffield, however, as Nigel Levine (46.82 seconds) won a fourth successive 400m title after Luke Lennon-Ford was disqualified.
Lennon-Ford crossed the line ahead of Levine and draped himself in the Union flag in celebration only to later learn he had strayed outside his lane.
Andrew Osagie suffered the same fate in the men's 800m, leaving Sheffield's Mukhtar Mohammed to take the crown in a time of one minute 51.61 seconds.
It was another dominant display by Sheffield's Luke Cutts, who won the men's pole vault by 25cm.
The 25-year-old's 5.60m vault was way below the British indoor record of 5.83m which he set in France last month.
However, it was Johnson-Thompson who caught the eye once again. The Liverpool Harrier is expected to compete in the pentathlon in Poland and will take part in the Dutch Championships next week in a bid to qualify for the event.
"It was definitely the best I could have imagined. I didn't sleep last night so I feel really tired and didn't expect to come out and do that," said Johnson-Thompson, now second on the list of all-time British Indoor female long jumpers.
"I skipped the hurdles because I wanted to be really cautious for next weekend, I really want to qualify for the World Indoor Championships in the pentathlon.
"It gives me great confidence, even if I can't get to that standard I know I can get close to it and that's what it's about in pentathlon, being consistent."
Elsewhere, it was a disappointing day for Jenny Meadows (2:06.80) who was overtaken on the final lap and finished fourth in the women's 800m. Meadows was competing for the first time in 12 months after injury ruined her 2013 season.
IPC Athletics high jump silver medallist Jonathan Broom-Edwards failed to set a new personal best as he finished behind training partner Grabarz.
The 25-year-old, who is working towards the 2016 Rio Paralympics and is one of the BBC Sport's Paralympic Athletes to Watch in 2014, cleared 2.07m at the third attempt but had three failures at 2.12, which would have been a new personal best.