Nikki Butterfield pocketed $30,150 in prize money after coming fourth in the HyVee Triathlon in Des Moines, Iowa, at the weekend.Butterfield, the wife of the Bermuda triathlete Tyler, finished the sport’s largest prize purse race in a time of one hour, 59 minutes and 38 seconds.She had to call on her professional cycling experience to move up the field from 24th to first during the bike stage, completing the second stage three minutes quicker than anyone else.Butterfield not only set the fastest bike with her 59:28 split, she won $5,150 for the fourth lap prime to go with $25,000 for her fourth place finish.She admitted being surprised with how well she rode but said the course had been tailor-made for her.The Australian finished 26 seconds behind the eventual winner Lisa Norden from Sweden, and just nine seconds off the podium.Butterfield will race her first long-course race since returning to triathlon in two weeks time, the Ironman Syracuse 70.3, followed by the ITU World Long Course Championships in Henderson Nevada on November 5.