As Chew says, send Alan an email, ideally with links to things like Strava activities or race results. Here's my application list for 2018 as an example
Previous rides were:
Yorkshire Dales 300 (2015) https://www.strava.com/activities/335029417
Yorkshire Dales 300 (2016) https://www.strava.com/activities/621749093
BB200 2016 (the soft one) https://www.strava.com/activities/739914226
This year I've done the following.
Rovaniemi 150, came 10th https://www.rovaniemi150.com/results/2017/rov150-2017/ - https://www.strava.com/activities/873793266 A race rather than an ITT in the arctic.
TransCambrian Way ITT - https://www.strava.com/activities/922457268 Done solo over a couple of very wet days
Jenn Ride - 3rd back - https://www.strava.com/activities/998908115 Not a true ITT but used it as a shakedown and practice for the HT550.
Day 1 - https://www.strava.com/activities/1017775653
Day 2 - https://www.strava.com/activities/1017775677
Day 3 - https://www.strava.com/activities/1017775673
Day 4 - https://www.strava.com/activities/1017775723
Day 5 - https://www.strava.com/activities/1017775757
YD300, 6th back in a PB - https://www.strava.com/activities/1063981308
YD200 - https://www.strava.com/activities/1154127620
That makes it easy for Alan to check you've done what you've said you've done.
Of course you can do it (the HT550) as an ITT, ideally so you don't interfere with the group start - the week before is popular as you get back to see the group start.