I generally tell people to avoid the Time-Trialist, Century Rider, and Triathlete athlete types. The training for these athletes types will be almost exclusively endurance rides. You will want to add in a little intensity to your training, so I would recommend something like GC Specialist or Climber, even for events like these. Remember that athlete type is only half the equation when it comes to prepping for an event - the other factor is training load. If you know what the approximate XSS of the event will be, you want to aim to have ~1/4 to 1/3 of that XSS in your training load (i.e. if the event will be approximately 300 XSS, you should aim for a TL of approximately 100. HTH