No – all you need to do is replace a flat – there were flats for days.
fun story – as soon as I got there someone came up to me and showed me that something in their wheel was broken. Their pedals turned and the chain was turning the cassette but the wheel wasn’t moving. I directed them to one of the actual mechanics who knew what they were doing (and I’m pretty sure they said there was nothing they could do to fix it). After that, it was just flats (and one person who couldn’t get their kickstand up)
Also when I did it (which was in 2016, I was out of town in 2017) there was a mandatory meeting beforehand where they showed us how to fix a flat.