Input some numbers into best bike split and will give you a rough guide of your finish time based on a % off FTP. So you can adjust whether you think you can hold 80% or 85 etc.
I was doing the Ironman New Zealand 70.3 bike leg this past weekend as part of a team, so was confident I could hold 90%. Best bike split told me I’d finish in 2:20.
Ending up holding 0.94 IF and finishing in 2:18 but I haven’t retested FTP since the end of November so it may have been closer to 0.90. I looked at the hills on the course, strava segment times and built my own plan, using average speed and HR from last year during a full 70.3 as a guide.
