Kate Middleton continues to dazzle fashion watchers at London 2012. The Duchess of Cambridge was spotted cheering on Team GB's Rebecca Adlington at the women's 800m freestyle final at the Aquatics Centre on Friday. The Duchess was wearing a polka dot top and a vibrant red blazer, complete with her signature hair-do - blow-dried tresses let down and loose. The Duchess was earlier seen in a sportier look, with a pony tail, while attending track cycling events at the Velodrome.

She was accompanied to the Aquatics Centre by Prince William. Prince Edward and his wife, Sophie, Countess of Wessex, were also in attendance. The royal family's presence did not, unfortunately, inspire a win for the hosts, as American teenager Katie Ledecky took the gold medal, setting a new American record in the process.

Kate Middleton has risen to the Olympic challenge with frequent changes of wardrobe, opting for three different dresses for three events on the same day: the normally thrifty Duchess has often been content to wear one dress for a whole day.

Before her appearance at the Aquatics Centre, Kate was seen in a navy blue Team GB outfit, watching on as Great Britain played Pakistan in a men's hockey game at the Riverbank Arena Hockey Centre - the same pitch Catherine played on with the team during a training session.

The Duchess was a hockey player at school and looked completely at ease in casual Team GB fleece, which she wore over a pair of navy blue skinny jeans. The look was completed with a pair of wedges.

See William and Kate cheering on the athletes at the swimming competitions

Catherine, Duchess of Cambridge smiles as she talks to volunteer workers and military personnel working at the Olympic venues, during a visit to the Olympic Park in London August 3, 2012.REUTERS/John Stillwell
Britain's Prince William (top row, L), his wife Catherine, Duchess of Cambridge (2nd L), Prince Edward (middle row, 2nd R) and his wife Sophie, Countess of Wessex (R) watch the swimming competition at the Aquatics Centre during the London 2012 Olympic Games August 3, 2012.REUTERS/Neil Hall
Britain's five-time Olympic gold medallist in rowing Steve Redgrave, Prince William and Catherine, Duchess of Cambridge react as they watch the swimming competition at the Aquatics Centre during the London 2012 Olympic Games August 3, 2012.REUTERS/Neil Hall
Britain's five-time Olympic gold medallist in rowing Steve Redgrave, Prince William and Catherine, Duchess of Cambridge react as they watch the swimming competition at the Aquatics Centre during the London 2012 Olympic Games August 3, 2012.REUTERS/Neil Hall
Britain's Prince William and Catherine, Duchess of Cambridge applaud the gold medal-winning performance by Britain's men's team pursuit track cyclists, during their visit to the Team GB headquarters in the Olympic Park in Stratford, east London during the London 2012 Olympic Games August 3, 2012.REUTERS/John Stillwell
Britain's Prince William and Catherine, Duchess of Cambridge, watch swimming events during day 7 of the London 2012 Olympic Games at the Aquatics Centre August 3, 2012.REUTERS/Michael Dalder
Britain's Prince William and Catherine, Duchess of Cambridge, watch swimming events during day 7 of the London 2012 Olympic Games at the Aquatics Centre August 3, 2012.REUTERS/Michael Dalder
Britain's five-time Olympic gold medallist in rowing Steve Redgrave, Prince William and Catherine, Duchess of Cambridge react as they watch the swimming competition at the Aquatics Centre during the London 2012 Olympic Games August 3, 2012.REUTERS/Neil Hall
Britain's five-time Olympic gold medallist in rowing Steve Redgrave, shakes hand with Catherine, Duchess of Cambridge react as they watch the swimming competition at the Aquatics Centre during the London 2012 Olympic Games August 3, 2012.REUTERS/Neil Hall
Britain's five-time Olympic gold medallist in rowing Steve Redgrave, Prince William and Catherine, Duchess of Cambridge react as they watch the swimming competition at the Aquatics Centre during the London 2012 Olympic Games August 3, 2012.REUTERS/Neil Hall
Britain's Prince William and Catherine, Duchess of Cambridge applaud the gold medal-winning performance by Britain's men's team pursuit track cyclists, during their visit to the Team GB headquarters in the Olympic Park in Stratford, east London during the London 2012 Olympic Games August 3, 2012.REUTERS/John Stillwell
Catherine, Duchess of Cambridge talks to volunteers working at the Olympic venues, during a visit to the Olympic Park in London August 3, 2012.REUTERS/John Stillwell