Hi GitStray – great question!
You can of course create multiple tickets with different costs, something like this:
- Basic (registration only) – 17.00
- 400m dash – 20.00
- 200m dash – 20.00
Though I fully realize that could be unwieldy if you want to support all the possible combinations. In short, then, this isn’t directly supported right at this time – but is probably possible via some further custom development work.
While we can’t assist with tasks on that level, it certainly seems like it should be possible to implement if you have or have access to a developer with experience of WordPress and all the relevant platforms (Event Tickets and Event Tickets Plus on our side, and the ecommerce plugin you are using on the other).
Thanks!