Over the next five days, we will be counting down to the 2015 British Swimming Championships by previewing five of the top events we're most looking forward to at AquaZone.
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The 100m and 200m Backstroke could provide two of the most entertaining women’s events of the meet with little to choose between the top contenders.
Teammates and housemates Georgia Davies and Francesca Halsall are two of the four fastest entries for the 100m Backstroke, both training under James Gibson at the National Sprint Programme in Loughborough.
After four silvers, Davies finally landed her first British 100m Backstroke title in 2014 before adding a pair of international medals with Commonwealth silver for Wales and European bronze.
Halsall may be better known for her sprint pedigree in the freestyle and butterfly, but she has won backstroke medals at domestic level, including 100m Backstroke bronze in 2006 and 50m Backstroke bronze last season.
The 24-year old is also European champion over 50m Back and comes into the British Champs on the back of a personal best 1:00.77 effort in Edinburgh last month.
Lizzie Simmonds has finished in the medals over 100m Backstroke at six of the last seven British Champs, winning gold in 2009 and 2010.
Simmonds is one of only two athletes in the line-up – the other being Davies – to have dipped below the minute mark over two lengths, most recently at last year’s Commonwealth Games where she eventually finished fifth.
Like Davies, Lauren Quigley has only won the British 100m Backstroke title on one occasion, in 2013, but she sits on the precipice of breaking the minute with a PB of 1:00.01 from last season.
The 20-year old won her first British 200m Backstroke title in Glasgow last season and will be the main contender aiming to stop Simmonds landing the seventh national 200m Back gold of her career.