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Later this week we're going to be offering the opportunity to Win £270 Rab Neutrino Pro military down jacket
Visit the thread at that link above and Watch it to be notified as soon as the competition goes live
Too late to do anything now, relax and rest, train hard for 5 days will tire you and screw you up, if however you haven't ran in eons, then I would advise a short "blow out" run early in the week and then have a bloody hard look at yourself for not preparing.
Just carry on as normal, dont do anything the night before and dont try and push yourself any harder than usual between now and then to avoid injury. What tests do you have to do? If there is a mile and a half run I always used to say to myself its only a mile and a half and the quicker I run, the quicker its over!