 She held the halfway lead at the Tenerife Ladies Open in May finally finishing the tournament in second place and was beaten into second place again at the Wales WPGA Championship by a 74-foot birdie putt on the final green by Shani Waugh.Brewerton turned professional after she finished 13th at the 2003 Ladies European Tour Qualifying School.In her 2004 rookie season, Brewerton was second in the Ryder Cup Wales Rookie of the Year competition and finished eighth on the LET Order of Merit with four top ten finishes.