No I haven't yet, I've focused on just the bike racing, I completed one race this past season and am planning on doing a full season in 2015 and am training over the winter to increase my ftp.

But i haven't completely dismissed duathlons. Over Xmas vacation we traveled to see my in-laws, who have our old treadmill we left behind when we moved east. I hadn't even tried running in several years but I got on and gradually ramped up my speed without trying to overdo it. I was surprised that I was able to sustain an 8min mile pace with effort to spare, so much better than I expected to be. if I keep up my training I could be pretty competitive, depending on the duathlon, so I may keep the option open.