Answer
Chrissie Wellington shattered the previous women's Ironman record by an incredible 11 minutes. She achieved this remarkable feat in the 2011 Ironman World Championship in Kailua-Kona, Hawaii. Wellington's time of 8:33:56 not only broke the previous record set by Natascha Badmann in 2001 but also marked the first sub-9 hour finish by a woman in Ironman history.