Posted: 01/11/2016 at 13:18
Stockholm is my current marathon PB course. Although the weather that day was cold and included a torrential downpour for pretty much the entirety of the race. I think that's why I ran a PB, as I was determined to get out of the cold.
Copenhagen is a wonderful city and it's a great event. The heat just killed me that day, and it's a course that offers no shade, so you're exposed to the sun for the length of the run. I'd certainly recommend the city and that event to anyone who was interested in it.
After Paris I have the Luxembourg Night Marathon in May. I've ran both Berlin and Amsterdam in the past. Amsterdam is a perfect going for a time course. The weather tends to be on the cool side for that one too. Berlin's a wonderful city to explore, but outside the start/finish the course is fairly bland I thought. The finish to the Brandenburg Gate is spectacular though.
I do similar mileage and number of runs to yourself. I've found four runs a week seems to work well for me. I'm a good bit slower than yourself though with my marathon PB at 3:44:14 and half at 1:37:00. From my knowledge the folk here who run closer to the times you're aiming for do higher mileage and and run more frequently. Hopefully one of them will be able to give you some advice, as I've seen a few of them make huge improvements in their times.