I am new to the triathlon world so I am not trying to offend anyone with this post. I did my second 1/2 iron this weekend in GA and noticed some drafting going on (wich I assume is common in a lot of races) here was something I noticed though

I group of about 5 guys passed me and they had a nice little pack going on and they all seemed to be sharing the lead and taking a pull - they did not seem to care they were drafting - here was the interesting part - a couple of them had rearview mirrors on their helmets - and a few minutes after they passed me a marshall was spotted on the course - it sure seemed like they spotted him in their rearview and broke up their pack - then when the marshal was gone regrouped.

Does this sounds common? Or is this just a random way that people get around the rules so they are not caught?

Like I said - not trying to piss anyone off - just wondering if I am going to continue to see this in all my races.

Thanks