So did just that with 2 bike workouts at "The Island" (aka Fiesta Island).
We are looking at ~1 month apart and I am happy to see the improvements.
Noted in the red arrows:
- Overall time was longer (more important when compare to other 2 points)
- Speed was faster by over 1 mph
- Heart rate (and therefore calorie usage) was lower - meaning I'm being more efficient with my body
Now it's not realistic to extrapolate these 1 month improvements to what could happen in IronMan in November....but.......I can at least have my confidence improved that I'm not totally crazy and this is possible!