I am tapering for the Paris marathon. Yesterday's Sunday run was a relatively short one. I ran 19.7km in the run I have named the London Bridge loop. I was pleased with the time: 1 hour and 40 minutes. If I can run this time for 19.7km in a normal training run, then I am confident that I would be getting near 100 minutes in a half marathon, with its water stops and the adrenaline that comes with race day.