The Berlin Marathon is on 24th September. With only six weeks to go, Coach Sean has stepped up the training schedule. Here’s what it looked like last week: Monday: 12 x 400m anaerobic at 3:55/km (6:19/mi) (9km) Tuesday: Hilly run (11km) Wednesday: Tempo run 8k at 4:38/km (7:27/mi) (12km) Thursday: Midweek longish run (16km) Friday:…