As you know by now, there are numerous timing chips. The organizers mostly publish this information on their websites so you can find out from them. If you are unsure, send us a request and we will help you with the information
If you want to add a timing chip for one of our timed races click here: https://enter.entryninja.com/registrations and go to the registration you would like a timing chip.
On your registration page click on the add merchandise button and add a timing chip. This only applies if we time the event.