Race FTP target

Listening to the trainer road podcast from Kona, it would seem the majority of the athletes who qualified with a sub 5 hr bike, their FTP was at the 300w level, but then during the race their FTP is backed off by about 25%

I am looking to qualify for Kona in 2020, with that in mind my current FTP is 227 so in order for me to be targeting a sub 5 hour I need to raise my current FTP to at least 300w, to target an average of 220 in the race?

Is that correct?
Is it realistic for me to get that much of an improvement in FTP between now in May 2020?

6 posts were merged into an existing topic: The Ironman In 2020 Thread