Andy - Well done! Good day for smashing parkrun PB's. I knocked 25 seconds off mine, down from 22:31 to 22:06. That also included a pitstop to give someone a hug.
Wendy - BCRC stands for Bristol Convocations Running Club. It's a virtual running club of Paris runners who've passed through this way over the years. The Bristol references the stool chart, which was a long running joke. Convocations references the document you need to print out and take when collecting your bib for the marathon, but to date even the French speakers amongst us are unsure why that document is called that!
T-shirts ave been made up as Orbutt explained and a new print run tends to be done every year. It's a good way to identify people from the forum and also helps socially for people to meet up at other local events.