Hi Paul, welcome and congratulations on breaking your duck in the Paris forum, as it were . I'm afraid the answer for Paris, or any other races in France is no, it has to be the certificate exactly as printed on the website, signed and stamped by a medical doctor. It's a French insurance thing, and it applies to all kinds of sporting events, not just running. Other countries' races (eg Italy) will accept EA membership.
You GP may do it for free, or for a fee - £20-30 seems to be about standard.
Morning all. Odd Garmin experience this morning - was getting strange readings on my run that suggested I was going absurdly fast, then at the end had a substantial overrun on a route I do regularly. Downloaded data and it had my start point about a mile away from where I actually started. Never had this before. I'll do a hard reset, but just wondered if anyone else had had this problem? It's a 310xt.
Looked at the website and that's quite a challenge - good luck. Can't advise much on the training other than practice a lot on hills, and maybe try out a walk/run strategy to see what intervals suit you. But my main tip would be to take midge repellent, and lots of it.
Natty - I'd use the 10k time, plug it into something like the McMillan calculator and see what you get. But that might be a bit easy, because you've done a lot of running since May, so if you're not pretty knackered by the end, consider upping the pace a bit .