Here's the latest response from IRONMAN:
To our athletes and fans: We’re sorry. We’ve heard you, and we realise we’ve missed the mark on this one.
After taking your feedback into consideration, we have decided to replace Iron Girl with the Night Run. A 5K fun run open to everyone, aged 16 and up.
Iron Girl was not in any way intended to isolate groups or engender negative stereotypes, however we acknowledge the incorrect way in which the message was brought across. The intention of the event was to provide a 5K fun run through a supportive, energetic and empowering environment for females pursuing a healthy and active lifestyle who may want to be involved but are not necessarily interested in doing an IRONMAN event at this time.
The event was in no way intended to diminish the achievements and capabilities of women. IRONMAN celebrates all athletes and encourages inclusive participation across all levels of competition and distances.
We apologize again and are committed to doing better as we work to bring more racing opportunities for all.