In the past I have looked for information on Ironman 70.3 worlds qualification and have not found something super exact. So now that I have achieved it, I thought I could share some details.
I was 7th in the 35-39 age group in Marbella. There were 6 slots but got the spot because of the roll down. Still, I was 6 seconds away from being 6th, so I think the information is still relevant.
I weight 62kg, and had an AI estimated FTP of 268W on March 12th, so 4.32W/kg. It is a bit old but immediately after “taking the test”, I had 2 weeks of no cycling training because of a stomach bug. Still I decided to do the build to the race using this FTP. The workouts became easier as the block went on.
My running threshold is 3:52 '/km, based off a 20 minutes test. However, I did this test using the Asics Nimbus, which is kind of a slow shoe, and I did the race wearing the Nike Alphafly.
My CSS pace is about 1:48’/100m.
I did 34:45 (1:50’/km) for the swim (50 out of 135). Maintained an IF of 0.87 (222 average, 232 NP), for 2:40 in the bike (4 out of 135). And maintained an IF of 0.98 (3:57’/km) for 1:23:45 (4 out of 135).
Marbella is a very hilly course with about 1400m of climbing so it favours a light person like me, and reduces the relative importance of the swim, by making the bike longer. I live at about 700m altitude and the race was at sea level. In addition, the FTP was calculated based on training on the aero position while in the race I was out of aero for the most part, thus giving me more power I assume, and the ability to maintain such a high IF, and still run well off it.
If you are a better swimmer than me, then you can probably be slower on the bike and on the run.
My profile in trainerroad is public, so if you are a subscriber you can look at the race files, including the run, and also at the the training I did. You will not find anything epic, only consistent training.
In the covid era, during which I only cycled, with weeks of up to 20 hours of only trainerroad workouts, I had an FTP of 282.
Also, best bike split grossly overestimated the amount it would take me to complete the course, which discouraged me from even trying. So do not get discouraged if the same thing happens to you.