Tomorrow sees London's first proper half-marathon, and this Londonista will be plodding around the new route in the east of our fair city. The capital has of course always boasted a world-beating marathon course, and earlier this year we acquired our very own dedicated 10k. So it makes sense that we get a half-marathon too. Tomorrow's 'Run To The Beat' course will snake around no less then three olympic/paralympic venues. The weather looks as......