@eduardo23 - I’d be interested if you could find me where Coggan mentioned that 75% and 80% FTP limit/threshold - all my racing is at around this point, and I do find it intriguing that some folks can push a much higher intensity for ultra-distance.
@Joelrivera, In fairness, I did just lift Dizzy’s figures from Strava, and they may not be bang up to date. I don’t bother updating Strava myself - so it is possible his “Strava” FTP isn’t current. Like you, my initial thought was that his FTP must be… well, I guessed 400-410W (because I understood that holding 0.65-0.70 IF was a pretty good estimate for 24h).
Nevertheless, an average of 80% FTP for 24h is outstanding!