BRITISH SWIMMING CHAMPIONSHIPS Venue: Ponds Forge, Sheffield
Dates: 16-20 March
Coverage: Listen live from 1750-2000 GMT on BBC Radio 5 Live Sports Extra, Monday to Thursday and the BBC Sport website on Friday
Jo Jackson beat Olympic gold medallist Rebecca Adlington to win the 400m freestyle in a new world record time at the British Swimming Championships.
Jackson set the new mark of 4:00.66 to pip her rival who also broke Federica Pellegrini's previous world best by finishing in 4:00.89.
"I'd been swimming well in training - to get a world record has blown me away," Jackson told BBC Radio 5 Live.
"I finally touched out Rebecca at the finish. She pushed me so much."
606: DEBATE
"
Becky will be untouchable in the 800m event and as competitive as ever in the 200m freestyle." BBC Sport's Bob Ballard
Victory for Jackson means she qualifies automatically for the 400m free at this year's World Swimming Championships in Rome.
Adlington will have another chance to gain qualification for the event at the second trials in Scotland in June.
The Mansfield swimmer revealed she has found it difficult to cope with the pressure since winning two golds at last year's Olympics.
"My motivation is never a question, it's how to deal with the pressure," she told BBC Radio 5 Live.
"I've just turned 20. Not even my mum and dad can teach me how to cope with the pressure."
Meanwhile, David Davies, who won Olympic silver in the open water 10km, set a new British record time of 3:45.24 to win the men's freeThis article is from the
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