Will the defending champ make it 4 in a row? Or will Daniela Ryf be dethroned at this year's IRONMAN World Championship brought to you by Amazon?

It's a stacked field; take the poll and tell us what you think.

At this year's IRONMAN World Championship brought to you by Amazon, we'll be inducting four new members into the IRONMAN Hall of Fame. Check out all the details and tell us what you remember about these legends of our sport.

The IRONMAN World Championship brought to you by Amazon is almost here. We want to hear your predictions--who do you think will win the men's pro race? Take the poll and let us know.