You could try: https://forums.garmin.com/forum/deve...31#post1310631

In order to get IF you would simply need to divide normalized power with your current FTP, so I believe you would need to enter it like this:

for Lap IF:

Also make sure you configure the data field to display decimal (2 places) and write your current FTP as a number in the formula, otherwise it won't work.

Hope this helps

In order to get IF you would simply need to divide normalized power with your current FTP, so I believe you would need to enter it like this:

**(AVG0(IFS(Timer GTE 30,TIMEAVG0(Power,30)^4))^0.25) / FTP**for Lap IF:

**(LAPAVG0(IFS(LapTime GTE 30,TIMEAVG0(Power,30)^4))^0.25) / FTP**Also make sure you configure the data field to display decimal (2 places) and write your current FTP as a number in the formula, otherwise it won't work.

Hope this helps

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