We have added the ability to set custom questions via the API. See it here – https://runsignup.com/API/race/:race_id/questions/POST.
We have a few technology partners and advanced customers who use our back end service and create their own custom user interface for a number of functions who needed this capability.
So this might not impact many people directly, but is great for expanding the overall Open RunSignUp Ecosystem to cover an ever expanding set of solutions for racing.
Here are samples using JSON and XML – Question API Samples
Here is a list of the functions (this might also be useful for other registration companies who are trying to figure out how what functionality needs to be included in custom question logic):